SyncRep reserve snapshot

Similar Questions

• Reserve snapshots

  I have a Dell PS6100 we use for our VM storage. I had one of our technicians under contracts tell me today that, by setting snapshot reserve at 0% (we do not use them), that he has learned in his years of class Dell there that there would be "a drop in IOP performance."

  It looks like the gabarge for me. I disabled stereotypes without on before in the past and never seen a hit show or heard of this being the case. Technically, it makes sense to me. I would check the same thought so, as I have been wrong before. Thoughts?

  Hello Kevin,

  You're right, affecting the instant reserve at 0% has no impact on the performance of volume. There just go back this space to clear and stop snapshots to be created.

  I suspect that he was thinking about what happens when you run a member completely out of free space when using thin provisioned volumes and you implemented it.   As the end of the free space of the approaches written will be slowed.  Once that there is no free room, thin provisioned volumes that need more space will go offline until the problem is resolved.

  Kind regards

  Don

• error snapshot when you run chkdsk on CSV

  Hello. I have a cluster WS2012R2 Hyper-V using CSVs stored on EQL.

  I was testing things and you are supposed to be able to run chkdsk C:\ClusterStorage\ /scan while the CSV volume is online (not in maintenance or redirected access mode).

  However, I get this error:

  PS C:\Users\admin > chkdsk C:\ClusterStorage\CSV1 /scan
  The type of the file system is NTFS.
  The parameter is incorrect.

  A snapshot error occurred during parsing of this disc. Run a scan offline and difficulty.

  What I did:

  -on all the cluster nodes connected to the vss-control volume

  -Kit of HIT, 'PS group access' group, said including access VDS/MVS (I also tried adding access Smart Copy, but that shouldn't be necessary, no?)

  -sure there is a reserved snapshot set to the EQL volume (there was error different when I snapshot holds the value 0 before)

  Any ideas what the problem is? There are no further details in the event log.

  Hello

  If Joe suggestions do not help, TI, maybe the chkdsk command knows not how to deal with a snapshot to support him.  He expects a local vss snapshot is available.

  You can try to cancel the registration of the H/W Equallogic VSS provider and then run the chkdsk process.

  Solution title HOWTO: temporarily disable the EqualLogic VSS provider?

  Details solution in certain circumstances, you can maybe disable the EqualLogic VSS hardware provider module, but be able to reactivate later.

  Please note that the content of this solution is not officially documented or supported. This has been observed in the past, but is not guaranteed to be stable or functional in the future. As long as it is documented, we shouldn't he provide customers.

  This can be done with the command 'eqlvss' on Windows:

  C:\Program Files\EqualLogic\bin > eqlvss /unregserver

  You can confirm that it has been deleted with the following command:

  C:\Program Files\EqualLogic\bin > vssadmin list providers

  vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

  (C) Copyright 2001 Microsoft Corp.

  The provider name: 'Microsoft Software Shadow Copy provider 1.0 '

  Provider type: System

  Provider ID: {b5946137-7b9f-4925-af80-51abd60b20d5}

  Version: 1.0.0.7

  To add it, follow these steps:

  C:\Program Files\EqualLogic\bin > eqlvss/regserver

  C:\Program Files\EqualLogic\bin > vssadmin list providers

  vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

  (C) Copyright 2001 Microsoft Corp.

  The provider name: 'Microsoft Software Shadow Copy provider 1.0 '

  Provider type: System

  Provider ID: {b5946137-7b9f-4925-af80-51abd60b20d5}

  Version: 1.0.0.7

  The provider name: "DELL EqualLogic VSS HW Provider."

  Provider type: hardware

  Provider ID: {d4689bdf-7b60-4f6e-9afb-2d13c01b12ea}

  Version: 3.1.1.0

  Kind regards

• Question about Equallogic snapshots.

  Hello forum

  I could not confirm this, but instant never need to commit anything to the basic volume?

  Lets say I have 10 snapshots and delete the oldest? There will be a load of e/s to validate these instant changes?

  Also, if someone could point me to any type of indepth explanation of this technique of snapshot, I would be interested to read all that.

  Thank you!

  N ° current data are already on the base volume.  There is nothing to commit.   Only if you are completely restoring a volume from a snapshot will be there in writing for the base volume.

  On the site of Equallogic Support KB:

  Solution title TABLE: how the snapshot reserve space is allocated and used

  Solution details Snapshot Reserve Allocation and use

  -------------------------------------

  In a series group PS, snapshots can protect against errors, of a volume

  virus or the database. A cliché represents the content of a volume

  at the time you created the snapshot. Creating a snapshot does not disturb

  access to the volume, and the snapshot is instantly available allowed

  iSCSI initiators.

  Before you can create snapshots for a volume, you must allocate space (called

  snapshot pool) for snapshots. You set the value of the snapshot reserve

  When you create or modify a volume. Snapshot reserve benefits from the same

  as the volume of the pool data.

  When snapshot data consume entire supply snapshot, the Group remove is

  the oldest snapshots to free up space for new images or sets the volume and

  snapshots offline, according to the policy you selected for instant recovery

  space.

  The functionality for creating snapshots is called hybrid allocate when writing.

  Operation of sharing and snapshot of the page

  -----------------------------------

  A PS Series Group organizes the physical storage into logical segments called pages.

  Each page is composed of several logical blocks. This is similar to the way file

  systems combine areas of physical disk in 'clusters' or 'chunks '. Each page has

  a reference count which records the number of volumes and snapshots that share

  the page.

  When you create a volume, the group creates an internal table, called the volume

  table, which contains pointers to pages that use the volume. When you create

  a snapshot of a volume, the group creates a snapshot table by making a copy of

  the volume table, which is usually an operation in memory that the Group

  run in a transactional manner. For each page of volume in use, the support group increases the

  reference count to indicate that the volume and the snapshot share page.

  Because the group does not move or copy the data or allocates a new pages, photos

  are fast and efficient.

  Reserve of the snapshot stores the differences between the data on the volume and snapshot data

  (in addition to differences between the data of multiple snapshots). When you

  first create a snapshot, the page for the volume and the snapshot tables are

  In brief identical copies and the snapshot consumes no snapshot

  reserve. A reading of the same logical block of the volume application or the

  snapshot returns the same data because the application is reading from the same page.

  However, if you write a page that has a volume and a snapshot of share, snapshot

  reserve is consumed.

  Here's a simplified example of a snapshot operation. In general, no.

  additional I/o operations are needed to manage the data volume or snapshot.

  However, other internal operations can occur due to virtualization and

  data balancing on berries of the PS Series.

  If an application performs a write to 8 KB for a volume containing a snapshot, the

  Group:

  1. determine what page is modified by the write operation.

  2 - If the page is not shared, writes the data to the page.

  3. If the page is shared:

  . (a) allocates a new page of disk space and reduces the instant to reserve

  . the volume of a single page.

  . (b) update the page of volume table to point to the newly allocated page.

  . (c) mark the newly allocated page as having new data on the volume and the references of the

  . original page for unchanged data.

  . (d) writes the data to the new page.

  When writing is complete, if you read the data on the volume, you have access to the

  new page and new data. However, if you read the same logical block of the

  Instant, you get the original data, because the snapshot will always point towards the

  original page. Similarly, if you set a snapshot online, write to the snapshot.

  feature hybrid write protects the original data volume by allocating

  a new page for the new snapshot data.

  Only the first page of writing to a volume shared (or snapshot) consumes additional

  snapshot reserve. Each subsequent entry is considered identical to a writing on a

  non-shared the page because the original data are already protected.

  Functionality similar to hybrid allocate when writing is used in cloning operations.

  However, unlike when you create a snapshot, cloning a volume immediately

  consumes space additional group. If a clone is moved to another pool, data

  is copied during the operation of moving pool.

  Restoring a Volume from a snapshot

  ----------------------------------

  Because of the layout table, restore a volume from a snapshot is very

  quick. First of all, the group automatically creates a snapshot of the volume by copying

  the volume table to a new table of snapshot. Then the Group transposes the page tables

  the volume and the snapshot you selected for the restore operation. NO.

  additional space is required, and no data is moved.

  Deletion of Volumes and Snapshots

  ------------------------------

  Because volumes and snapshots to share pages, if you delete a volume, you

  automatically remove all the clichés associated with the volume.

  You can manually delete snapshots (for example, if you need more of)

  snapshot data). In addition, the group can delete snapshots automatically in the

  following situations:

  1 - failure instant free reserve. If the snapshot data consume the snapshot

  . reserve, the group either deletes the oldest snapshots to free up space for new

  . snapshots or sets the volume and snapshots in offline mode, according to the policy

  . you have chosen for the snapshot space recovery.

  2 - maximum number of snapshots, created from an agreed timetable. If you set up a

  . timetable for the creation of snapshots, you can specify the maximum number of

  . photos you want to keep. Once the program creates the maximum number

  . clichés, the group will delete the oldest snapshot for planning

  . to create a new snapshot.

  Snapshot are deleted in the background queue. The group travels

  the snapshot page table and decremented the reference count on every shared page.

  Any page that has a zero reference count is released into free space. Pages

  with a zero reference count are not released because they are shared with

  the volume or other snapshots.

  Because stereotypes can be automatically deleted, if you want to keep the

  given to a snapshot, you can clone the snapshot.

  Reserve snapshots use agreement

  ------------------------------------

  The snapshot reserve is consumed only if you write a shared volume or snapshot

  page. However, it is difficult to establish a correlation between the amount of data written in one

  volume (or snapshot) with the amount of instant reserve consumed as a result.

  especially if you have multiple snapshots.

  Because the pages consist of several logical blocks, size e/s and distribution

  volume merge affect overall performance of e/s in addition to the snapshot

  reserve its use.

  For example, do much written about a narrow range of logical blocks in a volume

  consumes a relatively low amount of reserve of the snapshot. This is because as Scripture

  the same logic block more than once, does not require not additional snapshot

  reserve.

  However, doing random number wrote a range of logical blocks in a

  volume can consume a large amount of reserve of the snapshot, because many other

  pages are affected.

  In general, use instant reserve depends on the following:

  1. number of entries that occur in the volume (or snapshot) and at least one

  . snapshot exists. In general, more Scriptures tend to use more snapshot reserve.

  . Although multiple writes to the same logical block do not require additional

  . space.

  2 - the range of logical blocks, on which occur the Scriptures. Written in a wide range of

  . logical blocks tend to use more instant reserve written in a narrow

  . rank, because more of the written word are to different pages.

  3. number of snapshots of the volume and timing of the write operations. Most

  . snapshots that you create more snapshot reserve is necessary, unless there is

  . few entries on the volume or snapshots.

  4 - age of snapshot. Snapshots older tend to consume more snapshot reserve only

  . the clichés of recent because the group must retain the original data for a

  . longer time.

  Design Snapshot reserve

  -----------------------

  You cannot create snapshots until you book instant space. Snapshot reserve

  is set as a percentage of the reserve volume (space) for the

  volume.

  When you create a volume, by default, the volume uses instant group-wide

  reserve adjustment. (The reserve in the scale default setting is 100%. You

  can change this default value.) You can change the reserve snapshot setting when you

  create a volume or later, even if the volume is in use.

  Although the snapshot reserve is not used until the volume or writing snapshot occur, it

  is consumed immediately free pool space. For example, if you create a

  fully allocated (not thin provisioned) 200 GB volume and specify a snapshot of 50%

  pool of reserve, free space is immediately reduced to 300 GB (200 GB for the volume

  reserve and 100 GB for Snap reserve), even if there are no pages in use.

  Therefore, before you create a volume, you should consider how many snapshot

  reserves, if any, to assign to the volume. The reserve of the snapshot set to zero (0)

  If you do not want to create snapshots.

  The optimal size of the snapshot reserve depends on the amount and type of

  changes in the volume and the number of shots you want to keep.

  By example, if you set the snapshot reserve 100%, and then create a snapshot.

  You can write to each byte of the volume without missing snapshot

  reserve. However, if you create another snapshot and then write in each byte of

  the volume, the first snapshot is deleted in disk space available for the new snapshot. If

  you set the instant reserve at 200%, there would be a sufficient reserve of snapshot

  for the two snapshots.

  A very conservative strategy in terms of instant reserve sizing is to put the snapshot

  book value at 100 times the number of shots you want to keep. This

  guarantees that keep you at least the number of snapshots, regardless of the

  the number of entries on the volume. However, this strategy is generally allocates

  book an excessive amount of snapshot, because that rarely crush you all the

  the data in a volume during the lifetime of a snapshot.

  The best way to instant size reserves is to assign an initial value to the reserve

  and watch how instant you can keep over a period of time specified under a

  normal workload. If you use tables to create snapshots, allow the

  calendar of work for several days.

  To get an initial value for a snapshot reserve volume, you must estimate

  the quantity and the type of entries in volume and the number of snapshots, you want

  keep. For example:

  -If you wait a few Scriptures or writings which are concentrated in a narrow range

  . logical blocks and you want to keep only a few shots, start with a value

  . 30%.

  -If you wait several entries or entries that are random in a wide range of

  . logical blocks and you want to keep more than a few shots, start with a value

  . 100%.

  If the snapshots are deleted until you reach the desired number of snapshots,

  increase the percentage of snapshot reserve. If you reach the desired number

  shots without consuming much of the instant free reserve, decrease the

  percentage of reserve snapshot. Continue to follow instant reserve and

  adjustments as needed.

  How Thin Provisioning button Snapshot Reserve

  ----------------------------------------------

  The snapshot reserve is based on a percentage of volume reserve (allocated space

  a volume). For a volume fully provisioned, the reserve volume is equal to the

  stated volume size. However, a thin volume put into service, the volume of reserve

  is initially very inferior to the reported size (default is subject to minimum volume

  10% of the reported size) and increases as the written volume occur.

  If you change a thin volume supplied in a volume fully provisioned, the

  amount of reserved snapshot increases automatically, because the volume of reserve

  increase in the size of the stated volume.

  If you change a volume of fully provisioned to thin-provisioned, the amount of

  snapshot of reserve decreases automatically, because the volume of reserve declines.

  However, if the snapshot resulting reserves will be too small to store all the

  existing snapshots, the group will automatically increase the instant reserve

  percentage of value that preserves all existing snapshots.

  Reducing the use of instant reserve

  -------------------------------

  Over time, you can reduce the use of instant reserve by periodically (for example,

  Once a month) defragmentation of databases and file systems. Defrag operations

  try to consolidate segments of files in a volume and, consequently, to reduce the scope

  logical blocks addresses used in the pages of the volume.

  Defragment the data read operations from one place and then write data to a new

  location. So increased use of instant reserve during and immediately

  after defragmentation, because existing snapshots will use more of the usual

  amount of the snapshot reserve. However, snapshots created after defragmentation

  operation must use less instant reserve, because the data on the volume are more contiguous.

  When a volume is highly fragmented, potential reduction of the snapshot reserve

  use can be dramatic, especially after removing the large before you defragment

  snapshots. Defrag operations can also reduce the I/O load on the group,

  because the contiguous data makes more efficient i/o operations, in order to improve the

  e/s overall performance.

  Latest defragmenters are good to reduce the fragmentation that is not seeking to be

  too thorough. Some defragmenters also try to combine the inactive data

  further restricting the likelihood of changes to shared pages. However, are not

  Defragment too frequently.

  Sector alignment may also affect the use of snapshot of the space, especially in

  larger volumes. File systems must be correctly aligned with the sector. It comes

  described in technical reports for VMware and Windows environments.

• EqualLogic SRM 5 automatic failover test creates instant reserve 100% on replica cloned

  Is anyway to stop the 5 MRS. creating reserve snapshot of 100% on a replica cloned during a test failover. It seems was completely ignore the default group settings.

  Thank you

  Ian

  Hi Don,

  I talked to some of the guys at Dell. Its a bug in the RSA for vSPhere 5 which will be corrected by a patch. Thanks for the suggestion though.

  Ian

• VSM 4 snaps and vmware

  Hello. I have an environment that consists of hosts esxi 5.1, vcenter 5.5 and 4 VSM. I have a question about recovering files of catch instant equalllogic. I did it with success in cloning the snapshot and the vmdk mounted another guest vm but it seems there is a better way to do it without wasting time and space through cloning. Since I already have a component data store snap-in can't get this data bank in vcenter? It won't let me see the data store of having the same signature as the data store existing. Is there a solution for this? Also can I add the vmdk from wink to my existing guest VM without any problems? I get a warning that the guest virtual machine already has a player with the signature, and it can cause starting problems when you use the clone vmdk. Thank you.

  To recover a file, I do not use VSM recover option.   I bring the snapshot online EQL GUI.  A new analysis on a node ESXi.   Do "Add storage" and will the snapshot.   Then I use a test VM and add the VMDK this VM.   Then you can copy the files you need quickly.   I use test VM, because when you did, you have to stop the virtual machine in order to remove the VMDK of this VM.

  One of the main reasons for the VSM uses is a clone, if you book enough reserve snapshot, the snapshot might get deleted during the restore process.    The partial copy would invalidate probably your VM and the worst case, there was only one snapshot lets you down.  A clone ensures that can't happen.

  If you want to copy a VMDK together, you can do that too.  Same process as above but don't add it to a virtual computer.  Using the VI client browse to the snapshot, find the VM and the right mouse on the VMDK and make a 'copy', then you can 'stick' on the origin of the VMDK.   It is faster I think.

  Remember, make sure you have instant reserve or active Instant loan if you want to do this.

  Finally, when you are finished with the snapshot, go to EQL GUI.  Put it in offline mode.  THEN go to the VI client and rescan this node.  Configuration-> adapters for storage-> right mouse on iSCSI adapter-> Rescan.

  Kind regards

• Implementation of SyncRep

  We decided to change our configuration a bit. Previously, we had 2 identical virtual hosting platforms in 2 rooms of different servers on campus. Both consisted of 3 Dell servers in a cluster failover and a PS4100 with a CSV file that is stored on each San. Our main platform replicated VM to the test backup via the replication of Hyper-V. Because our needs have increased, resources on 3 host servers can no longer hold a charge and have enough to spare for failover. We have moved the 3 backup hosts to the main server room and we'll be adding them in the existing cluster, then replicating the San, if all goes well using SyncRep. I added SAN backup in the group with the main SAN and created a separate storage pool, but when I try to activate SyncRep, we discovered our problem.

  The volume that we have implemented for the CSV file is 6.5 TB we have only enough space for a reserve of instant 6% I thought that this would be allowed, as the minimum requirement of SyncRep is 5%, but during the initial synchronization begins, he fills the snapshot reserve and then up an error indicating that the snapshot reserve is exhausted and starts the process again. I don't know where to go from there, is it possible to do a manual synchronization, similar to traditional replication with manual transfer utility?

  Here is a screenshot of what I see:

  

  Thanks in advance for any advice you may have for us.

  Hello

  There is no rep manual synchronization.   Let me start with a volume provisioning for more space for the reserve of the snapshot.  I would also try to do for other volumes of extra free space as well.

  You have the initial 4 + TB to sync, more new writing to come in the snapshot reserve if additional is necessary.

  What is the interconnection between the source and the other pool?   They are on the same switches?

  If this still fails I would say an opening support cases.

  Kind regards

• No recovery snapshots have been created

  I have a Seagate replica for backup drive and received the error message that is mentioned in the thread above topic. The help of seagate message said:

  ***************************************

  Error reply: no recovery snapshots have been created for 216 hours

  Previous

  Subscribe

  A possible reason for the warning indicating no recovery snapshots have been created for 216 hours is related to the Volume Shadow Service. This same service may be responsible for responding continuously copy files, may also slow down the computer. To determine if the Service is configured, follow these steps: Click on Start, then all programs. Select Accessories. Click command prompt. For Windows 7/Vista, right click on the item and select run as administrator. Type CD C:\Program Files\Seagate Replica\bin\ (for 32-bit Windows) cd C:\Program Files (x 86) \Seagate Replica\bin\ (for Windows 64-bit) and press ENTER. Type rbvss.exe C: and press ENTER. Allow the command to complete (30 seconds or more) - the last line should read instant creation made. If made snapshot creation does not appear and the error value is displayed, this indicates a problem with the Volume Shadow Service. The information below explains how you can follow to set up the service. The first resource located at This Microsoft web page. ****************************************** Run the rbvss.exe I get the message: Microsoft Windows [Version 6.0.6002] Copyright (c) 2006 Microsoft Corporation.  All rights reserved. C:\Users\Lee>CD C:\Program Files\Seagate Replica\bin\ (for 32-bit Windows) The system does not have the specified path. C:\Program Files\Seagate Replica\bin\ C:\Users\Lee>CD C:\Program Files\Seagate Replica\bin > rbvss.exe C: RBVSS.exe 3.0 (Option: create the shadow copy set) ERROR: COM 'CreateVssBackupComponents (& m_pVssObject)' call failed. -Returned HRESULT = 0 x 80070005 -Text error: access denied. -Please re-run VSHADOW. EXE with the /tracing option for more details C:\Program Files\Seagate Replica\bin > VSAHDOW. EXE/TRACING ' VSAHDOW. EXE' is not recognized as an internal or external, order operable program or batch file. C:\Program Files\Seagate Replica\bin > rvbss.exe 'rvbss.exe' is not recognized as an internal or external command operable program or batch file. C:\Program Files\Seagate Replica\bin > rbvss.exe RBVSS.exe 3.0 Use: rbvss [optional indicators] [commands] List of optional indicators: -?                 -Displays the screen to use -wi = {name of author} - check that a writer/component is included -wx = {name of author} - exclude a writer/component to create game or restoration -bc = {file.xml} - generates the backup components document during the creation of the shadow. -script = {file.cmd} - creating script SETVAR -exec = {command} - custom command executed after the creation of clichés termination - wait - Wait before program -check - Check to see if the VSS is working properly (returns 0 no failure) -Difficulty - trying to solve the VSS components (returns 0 no failure) -tracing - running VSHADOW. EXE with improved diagnostics List of commands: {volume list} - creates a shadow on these volumes -ws - list writer State

  -wm - list writer metadata summary

  detailed list of metadata - wm2 - writer

  -q--list of all shadow copies in the system

  -qx = {SnapSetID} - a list of all the shadow copies in this series

  s = {SnapID} - the cliché of the ID of the list

  -da - deletes all shadow copies in the system

  DX-= {SnapSetID} - deletes all shadow copies in this series

  -ds = {SnapID} - removes this cliché

  -r = {file.xml} - based restoration on a previously generated backup components

  doc

  -rs = {file.xml} - simulated restoration based on a backup previously generated

  Doc components

  -svcQuery = ServiceName - queries the State of the named service (e.g. - svcQuery = vs)

  s)

  -svcStop = ServiceName - tries to stop the named service (e.g. - svcStop = vss)

  -svcStart = ServiceName - tries to stop the named service (e.g. - svcStart = vss)

  -svcDelete = ServiceName - removes the named service (e.g. - svcDelete = vss)

  -svcCfgAutoStart = service - configures the service to AUTO_START

  -svcCfgBootStart = service - configures the service of BOOT_START

  -svcCfgOnDemandStart = service - configures the service of DEMAND_START

  -svcCfgDisabled = service - configures the service to people with REDUCED mobility

  -svcCfgSystemStart = service - configures the service of SYSTEM_START

  -regDll - register a DLL as a service

  -unregDll - unregister a DLL as a service

  C:\Program Files\Seagate Replica\bin >

  Hello

  I suggest you contact Seagate support for assistance:

  http://www.Seagate.com/support/contact-support/

• size of the snapshot is taken from its volume?

  Hello

  I worked with Equallogic there are too many years, but not at HDS.

  If we take the snapshot of a volume, then the space will reduce its volume?

  Then, many times wherever I take separate instant the more space will be that she cut of its volume?

  Thanks in advance...

  Johnny

  http://www.sanstorageworks.com/Compellent-dir.asp

  When you take instant Compellent you freeze your volume. There is no copying of data process - now, each new entry data (e/s) from the server to the volme takes extra space (space is reserved). How much space does take to new entries in the frozen volume? It depends on the rate of change of volume...

• SANHQ creation of snapshots?

  Hi, we have recently improved our SAN HQ to the latest version, and now, every Sunday, all my LUN with snapshot space take a snapshot.

  I have no idea of what he does, but I can confirm that it was after SAN HQ has been updated.

  Can someone tell me where I could check and see what service creates a snapshot?

  Thank you

  Nathan

  Hi Nathan,

  It is not something you can see in the GUI.  It is already a 'net' for volumes with reserve instant without any snapshots of security.   You can only change or disable the Group CLI.

  Tracks by default (DSS) snapshot on volumes with snapshot reserve to something else then zero and do not have a configuration snapshot on demand.  If you set the reserve instant volume to zero (0) DSS will not create the snapshot for a volume.

  Also to the CLI of group you can enable/disable or set the time of day where the default snapshot is running:

  GrpName > grpparams by default-snapshot-sched?

  Disable - disables the snapshot grid by default.

  Enable - enables the snapshot planning by default.

  Show - displays the current values for snapshot planning by default.

  start-time - value start time of the default schedule of the snapshot.

  Also note that if the reserve instant zero you will return the placeholder for the snapshot to the pool.

  Therefore to you how you want to handle this.

  Kind regards

  Don

• volume planning calendar snapshot afer an update of the firmaware

  Hello

  After an update of the firmware ps6100 equallogic (from 7.1.2 to 8.0.5),

  2 volumes of table ago a midnight to to snapshot planning (* * by default) which is exploited.

  I want to delete this grid but I can't find where it is defined.

  Even using the cli.

  Thnaks for your help

  You

  C. HOWARD

  Tracks by default (DSS) snapshot on volumes with snapshot reserve to something else then zero and do not have a configuration snapshot on demand.  If you set the reserve instant volume to zero (0) DSS will not create the snapshot for a volume.

  Also to the CLI of group you can enable/disable or set the time of day where the default snapshot is running:

  GrpName > grpparams by default-snapshot-sched?
  Disable - disables the snapshot grid by default.
  Enable - enables the snapshot planning by default.
  Show - displays the current values for snapshot planning by default.
  start-time - value start time of the default schedule of the snapshot.

  Also note that if the reserve instant zero you will return the placeholder for the snapshot to the pool.

• Windows backup error: a snapshot could not be created. Error code: 0 x 81000019.

  Original title: Windows - no system reserved partition backup error

  Whenever I try to back up files by using the backup utility Windows 7, I get the following error message:

  "A snapshot could not be created. Check the event logs "VSS" and "SPP" application for more information.
  "Details: the specified object could not be found" error code: 0 x 81000019

  The backup utility starts and says is 'create shadow' fails.

  In the research forums, I find a common solution to the increase in the size / cleaning of the system reserved partition.  My problem is that the system reserved partition does not exist on the computer.  The computer originally had Windows Vista and upgraded to Windows 7 x 86 Ultimate SP1.

  Is it possible to get Windows 7 backup to work without a system reserved partition?  If not, is anyway to create a system partition reserved without wiping the hard drive and reinstalling everything?

  Hello

  Thanks for the update.

  I ask you to answer these questions:

  1. the computer is connected to a domain or a group of House?

  2 NAS hard drive is located on a different computer?

  If the computer is connected to a domain, then I ask that you post this question on the forum of TechNet at following link:

  http://social.technet.Microsoft.com/forums/WindowsServer/en-us/home?Forum=winserverTS

  Please get back to us with answers.

• ORA-00230: forbidden operation: snapshot controls unavailable file enqueue

  Hello

  Get this error for a while now.

  From control file and SPFILE Autobackup 3 November 2014 06:05:11

  RMAN-00571: ===========================================================

  RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.

  RMAN-00571: ===========================================================

  RMAN-03015: an error has occurred in the script stored std_arch_log_bkup

  RMAN-03009: failure of command of file control and SPFILE Autobackup on channel ORA_DISK_1 at 03/11/2014 07:08:13

  ORA-00230: forbidden operation: snapshot controls unavailable file enqueue

  Complete recovery manager.

  ------------------------------------------------------------------------------

  Recovery Manager: release 11.2.0.3.0 - Production on Mon 3 Nov 07:08:17 2014

  Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

  connected to target database: EMDEV (DBID = 1134683784) connected to the recovery catalog database

  RMAN > RMAN > catalog resync;

  2 > 2 >

  waiting for snapshot control file enqueue waiting snapshot control file enqueue waiting snapshot control file enqueue waiting snapshot control file enqueue waiting snapshot control file enqueue waiting snapshot control file enqueue waiting snapshot control file enqueue waiting for the snapshot control file enqueue waiting snapshot control file enqueue waiting snapshot control file enqueue waiting snapshot control file enqueue waiting for the snapshot control file enqueue can't do a snapshot control file

  RMAN-00571: ===========================================================

  RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.

  RMAN-00571: ===========================================================

  RMAN-03009: failure of command resync to the default channel to 03/11/2014 08:11:19

  ORA-00230: forbidden operation: snapshot controls unavailable file enqueue

  Tried to watch what may now be the queue:

  PROGRAM MODULE ACTION Logon ADDR KADDR TY ID1 ID2 LMODE SID SID ASKS CTIME BLOCK user

  141 SYS rman@hq4dr015343 (TNS V1 - V3) rman@hq4dr015343 FINISHED67 (TNS V1 - V3) 0000003 8 October 14 000000015FCD83E0 000000015FCD8438 141 0 2 4 0 2280088 FC 0

  but he said it's OVER. Any suggestions?

  I have reset:

  CONFIGURE CONTROLFILE AUTOBACKUP ON;

  TO

  CONFIGURE CONTROLFILE AUTOBACKUP

  and then once again changed it back to:

  CONFIGURE CONTROLFILE AUTOBACKUP ON;

  Test ran backups and they ran fine.

• No more available space and snapshots not taken (VEEAM)

  Hi all

  I have a BIG problem here and I do not see how to solve.

  For your info, I know my SAN is complete and really isn't a good way to run VMware, but I'm about to order the new SAN and servers this week.

  Right now, I have 3 data store. the one with the question is just related to Exchange 2007 and have total 380 GB.

  VEEAM has taken a backup of it and he sews it has never deleted the snapshot.

  So this morning, I got an instant "suppression" message on my VMware, Exchange is frozen and so was VEEAM.

  I have restart VEEAM, but I can't do a thing with seams Exhcnage is 'instant withdrawal. " No option available at the time where so he tries to remove it.

  But I guess it will never end because no more space is available.

  And I don't have any space anought on any data store to hold my Exchange Server...

  Can I do it fast?

  If I browse the data store, there is

  Exchange_1 - 0000001.vmdk

  Exchange_1 - 0000002.vmdk

  Exchange - 000002.vmdk

  It seems that something is missing (Exchange - 000001.vmdk)

  Well, please help, I'm stuck here!

  Martin L.

  Depends on the amount of RAM allocated to each of your virtual machines.

  There is a file (*.vswp), which is equal in size to the RAM configured for each virtual computer (unless there is a reserve memory for this virtual machine). Sometimes, if you're not too committed on physical RAM, setting a reserve memory for each equal to the configured RAM virtual computer will allow just enough room to go back to the feature (power - on virtual machines).

  The VMFS file system can be extended dynamically on Lun - to remove the snapshot for Exchange successfully, you may need to extend the VMFS volume where it is located. There are many ways to do this that go from 'good' to a bit dodgy.

  1. Best option: get your new business SAN and to create a LUN on where you can extend your existing VMFS volume, allowing enough space to commit the snapshot
  2. Improvised #1: Use an old server or workstation decent and build something like Openfiler, where you can introduce iSCSI and extend your VMFS
  3. Improvised #2: Use a physical Windows Server or workstation and the Wind Star to present an iSCSI LUN and expand your volume
  4. Out and buy a computer from office-SAN as Synology, present an iSCSI LUN and extend your volume

  Important: once the snapshot is engaged, move the virtual machine complete a contiguous VMFS volume on a single logic unit number and delete the extended volume!

  Good luck. Full VMFS because of clichés is a bitch! I have treated several times in a support capacity.

• Snapshot Manager, or "vim - cmd vmsvc/snapshot.get" see instant

  We have a VM with 4 virtual drives reserved Server ESXi 5.5. After the backup of POS operation failed I found snapshot files * - 0000xx - delta.vmdk as well as a correspondent for *.vmsd file. There was no entry snapshot in the Snapshot Manager then tried to consolidate snapshots suite http://kb.vmware.com/kb/1002310

  But it seems that ESXi host does not know snapshots:

  ~ # vim - cmd vmsvc/getallvms

  VMID Guest OS Version Annotation file name

  2 VMname [datastore] VMname/VMname.vmx oracleLinux64Guest vmx-10

  ~ # vim - cmd vmsvc/snapshot.get 2

  Download Snapshot:

  ~ #

  If I try to create a new snapshot there not almost immediately but new *-0000 x + 1 - delta.vmdk files are created and no error message is vmware.log.

  ~ # vim - cmd vmsvc/snapshot.create 2 test test_snapshot 0 0

  Create the snapshot:

  Create the Snapshot failed

  If I understand the memory snapshot creation he works long enough but doesn't have the same way, but I can see ' SnapshotVMXTakeSnapshotComplete: made by snapshot 'test': 325 ' end of vmware.log. Hostd.log I see some warnings:

  2015-02 - 26 T 16: 43:02.369Z [info FFE40B70 ' Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx'] instant tree refresh ignored because the storage is not accessible.

  2015-02 - 26 T 16: 43:02.371Z [warning FFE40B70 ' Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx'] PopulateCache failed: _diskAccess: true _storag, eAccessible: fake

  2015-02 - 26 T 16: 43:02.371Z [warning FFE40B70 ' Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx'] PopulateCache failed: _diskAccess: true _storag, eAccessible: fake

  ... dtto...

  2015 02-26 T 16: 43:02.381Z [FFE40B70 'Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx' verbose] time to gather the config: (11MS)

  2015 02-26 T 16: 43:02.381Z [FFE40B70 WARNING "Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx"] UpdateStorageAccessibilityStatusInt: 53a183b5 data store - 4367 b 267 - c93d - 180373fa1be8 is not accessible

  2015 02-26 T 16: 43:02.381Z [FFE40B70 'Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx' verbose] CfgUpdate update all the core files.

  2015 02-26 T 16: 43:02.381Z [FFE40B70 WARNING "Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx"] CannotRetrieveCorefiles: VM storage is inaccessible.

  2015 02-26 T 16: 43:02.382Z [FFE40B70 'Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx' verbose] time to gather snapshot file available: 0 (MS)

  2015 02-26 T 16: 43:02.382Z [FFE40B70 WARNING "Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx"] CannotRetrieveCorefiles: VM storage is inaccessible.

  2015 02-26 T 16: 43:02.382Z [FFE40B70 'Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx' WARNING] Snapshot create succeeded, but not UID 325 in the list.

  2015 02-26 T 16: 43:02.382Z [FFE40B70 'Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx' WARNING] has no operation

  2015 02-26 T 16: 43:02.383Z ['Vmsvc.vm:/vmfs/volumes/53a84235-a1905d30-5fe4-ecf4bbc24bf0/VMname/VMname.vmx' FFE40B70 info] State of Transition (VM_STATE_CREATE_SNAPSHOT-> VM_STATE_ON)

  Data store could not be inaccessible I was runnig commnad inside and managed to the list. I can not restart VM or host in the near future. No idea how to commit snapshots, please?

  Host reboot has solved the problem in the end. Snapshots became visible and I can remove them. I don't know what caused this situation.

  Thanks to opvizor for support and kind help.