Migration of thick Eager VM supplied zero supplied to lazy thickness to zero

Similar Questions

• Difference in-between thickness available lazy to zero; Eager to thick provision to zero; Provision of thin.

  OLA Pessoal,

  Alguem poderia por gentileza me explain a difference wave São aplicadas essas may e no momento da Criação uma VM no ESXi?

  Lazy available zero thickness;

  Eager to thick provision to zero;

  Provision of thin.

  Obrigado

  Discos sao thick discos totally alocados not store data or seja, to você criar um disco thick com 20 GB, ele will occupy 20 GB go don't do seu datastore, a difference between o e thick lazy Zeroead eager to zero, as e no lazy nao sao written zero em todos os blocos disco, o ele ja eager keys zero em todos os blocos disco.

  Ja disco o think e um tipo disco than aloca only the Espaço e timed pelo sistema invited operational, for example, is você criar um disco 20 GB para uma VM, inicialmente ele go occupy only the few KB/Mo no data store, very no momento as voce ready SMS dados no mesmo don't do sistema operational through o dele pode chegar ate limit o 20 GB size.

  Applications:

  Thick lazy disposition to zero: option Padrão para virtually todas as management, Kena as requerem o eager to zero;

  Thick eager willingness to zero: usually used por VM as ARIO use a Fault Tolerance funcionalidade do VMware, or to use a funcionalidade do Microsoft Failover Cluster dentro das Máquinas tolls;

  Thin provision: usually used quando para is provisionar but Espaço than total o Espaço fisico available, very can cause problems is todas as VMs utilizarem todo o Espaço available data store.

• Thick virtual disc used in the graphical interface format

  I understand that the thick of default VMware virtual disk format when you work in the GUI is lazy-reset, is it also the case during thin conversion to think during a migration process?  I want to start using discs eager-reset to zero, already built new models with them, but would also convert all my existing disks to this the simplest format possible and, hopefully, without turning power off virtual machines.

  As far as I KNOW the only way to convert the disks of thin thickness while the virtual machine is running is by performing a storage vMotion, where you can select the disc format. Otherwise turning off the virtual machine, select Browse datastore and inflate each hard.

  According to http://communities.vmware.com/message/1269427#1269427 manual inflation will create a disc of zeroing eager thick.

• Reference Dell HDS - recommended VMware virtual disk - drives provided - basic and dynamic thin and thick.

  Can someone point me to the literature on best practices for guest disc formats?

  I know all the Compellent thin-provisions. However, in VMware 5.5, when you set up a virtual disk in the comments you have several choices:

  • Lazy provisioned to zero thickness
  • Eager provisioned to zero thickness
  • Provision of thin

  And then, at the level of the OS, you have the choice of:

  • Base
  • Dynamics

  I would like a pointer to the technical document explaining the advantages/disadvantages of each choice and recommended best practices.

  Kind regards

  Kath

  I would like to either thin or thick lazy to zero.  The two will take the same amount of data on the HDS.  The main decision is where you want to manage your storage space?  If dilute you on thin you need to make sure that you make no provision in both places.  If you have thick lazy to zero, then you can only on commissioning on one side.

  Say that I always thin on thin.  Recovery of the space at the level of the virtual computer is not officially supported immediately, but maybe someday.

  In a virtualized environment, always keep it simple.  There is no dynamic performance with virtualization

• Thick thin disk conversion

  I have a host ESXi 4 with some VMs that I recently migrated on and set to update vmware tools and hardware. I'm doing a migration of thickness for the fine disc, but nothing seems to happen. I use the local disk storage. When I chose to migrate, I keep the same local data store and move to thin frame. The task ends immediately, but when I check the disc in the settings it always shows "thick". I even rebooted, but nothing has changed. Any ideas what I am doing wrong?

  Thank you

  Scott

  ESX is quite smart to know it moves in the same data store, same thing happens when you MOVE a file on your C: drive in Windows to the same folder.

  He actually have to migrate OFF server you and migrate RETURNED as a thin provision...

• Size of the band to RAID servers with ESXi - RAID 10

  I know this has been asked several times, but I never saw no definitive answer to this question.

  In my raid controllers [8704EM2 LSI / LSI-8708EM2] I can set the size of the band to get the size of band chosen by multiplying this with the amount of discs.

  VMFS5 uses a block size of 1 MB, so with my configuration of 4 disks, I need the size of my band to 256 KB, for my 8 disks it is 128 KB.

  When I create a new virtual machine I would use the eager willingness to zero thickness to avoid fragmentation in the data store, I think that that would be the optimal situation with regard to the data store?

  [Linux] operating system in the virtual machine that would result in this theory?

  Advice or comments?

  I've never seen any definitive answer to this question.

  Probably because there is no definitive answer to this question.

  In my raid controllers [8704EM2 LSI / LSI-8708EM2]

  You can gain more performance when you switch your controller/sata 3 Gbit/s old sata/6gbit one.

  VMFS5 uses a block size of 1 MB

  True, but vmfs5 also uses the subblocks of 8 KB. In addition, very small files)<1kB) can="" be="" stored="" in="">

  I would use the eager willingness to zero thickness to avoid fragmentation within the data store

  Where do you have idea * that * avoids fragmentation?

  I think that this would be the optimal situation with regard to the data store?

  I don't think this is not optimal, and I'm not sure that there is generally best value. Affecting the band of equal size block size vmfs5 maybe not the best option, because it is small enough. In addition, there are other things you should consider, i.e.:

  -sector size of the hard disk (usually 512b or 4 KB)

  -ssd read/erase (highly specific to the provider) block size

  -Sectoral block size / filesystem VM (depending on the operating system)

  -In charge of VM file system (depends on what your VM)

  -the edge of your raid controller cache size

  -type of raid-array (0,1,10,5,6,...)

  -etc, etc.

  IMHO, if you don't have time to test, just stick with the default. With blind shooting you can just make things worse...

• virtual disk shared in win 7 64

  Hi, I had a problem with ussing Shared Virtual Disk in the Virtual Machine to Win 7 64. (Esxi 6.0)

  -J' I (450 GB) SSD storage and I creat 2 VM ussing Win 7 64 on it. (40 for 2 VM and ~ 400 GB not of ussing)

  -J' I create a virtual disk (a disk) with option thick eager willingness to zero (400 GB). Set SCSI controller to "Virtual" in the two VM.

  -Add "Drive" VM 1, power on VM1 and Format 'A disc' as 'D:' (NTFS) volume.

  -Add "Drive" for VM2, VM2 power, and I see 'A disc' as 'D:' too. It's ok, im doing D Volume as a folder where the two VM can read and write so fast, don't need via Ethenet.

  
  

  - BUT, I got a proplem here, when I make a new folder ("Test") in the D volume in VM1, it does not show VM2 (the same when I try with VM2), but when I restart VM2, I see "Test folder" here.

  -J' have tried to control SCSI developed Physic, add SCSI(x:y) = multi writer... but it is not working properly. (I hope that it works as part of volume in windows).

  Please, give me any help. Thanks so muchhhh. I tried in 1 week, seem it's too difficult for me.
  

  Welcome to the community,

  This won't work unfortunately, because Windows 7 does not support shared access to a volume. To use a volume of several hosts (as ESXi does this with VMFS data stores) it is necessary that the operating system is aware of which - as mentioned earlier - Windows 7 isn't.

  What you can do is to assign the virtual disk to only one of the 7 VM window, share the disk (or folder) and map the network on the other virtual computer.

  André

• vCenter 5.5 cluster using Fibre Channel &amp; MSCS (Win 2003)

  Hi all

  I need to create a Cluster of 2003 of Windows (MSCS) as well as storage Fibre Channel shared on vCenter Server 5.5.  I need to work so that if a server crashes, the second server goes into action and support.

  I have a two-node Windows 2003 R2 64 bit running on the same host.  Virtual machines are created with an operating system installed.  I use for Fibre Channel storage and I have created and attached 6 discs in thick eager set to zero.  I also created and configured two NICs (Public and private) on each node.  The shared SCSI Bus is set to "Virtual" on both nodes.  I managed to get the two nodes to market and both can see the 6 disks.  The disk configuration is identical between nodes.  All drive letters to even the SCSI virtual peripheral nodes (1:X).

  I have not yet created the Windows cluster.  The problem is that, in node 1 when I create a folder in one of the attached disks, I don't see this folder in the same drive in node 2.  Is it a problem, a bad configuration or is this a normal behavior?

  Are there any other setup that I should consider to make this work?

  It's the doc that I follow:

  https://pubs.VMware.com/vSphere-55/topic/com.VMware.ICbase/PDF/vSphere-ESXi-vCenter-Server-55-Setup-MSCS.PDF

  Thanks much for any help!

  Since you not yet configured the cluster, this is normal behavior. Go ahead and configure the cluster, then the software cluster will manage the discs... do what you try can cause data corruption.

  And after the configuration of the cluster, take in mind that the drive will be online to a single node by time, as the Microsoft cluster is an active/passive cluster, in this way you will be able to see the disc and online with the letter assigned only on the active node.

• Storage Server 2012 issue (I'm confused thoroghly)

  Hello all and thanks in advance for any help or suggestions you can provide.  I'll make this as brief as possible.  I have a simple virtual machine environment.  ESXi 2 hosts the two 5.5 running.  I also have a Dell SAN with approximately 30 TB of space.  We currently have a Dell physical file server which has about 5 TB of storage on Board of on this - we use as a file server with multiple layers of security NTFS.  We want to virtualize this server and be done with the physical server.  My plan is to build a 2012 R2 Datacenter Server VM.  And then migrate the data over manually.  My problem is that I can't get my head around the "Storage" of the 2012 server part configuration.  Because the VM 2012 goes to live in a data store on the San - I just add a virtual disk to the server itself and make 5 TB or more big?  Or can I create a Volume to 5 on the SAN, mark it as only having a single source to avoid corruption and then use iSCSI initiator to turn up the volume.  Are there problems VMotion by the presence of a drive that big in a virtual machine?

  Thanks to you all!

  In both directions.
  A few thoughts from my recovery biased point of view.
  For a 5 TB vmdk, you need a data store that is still greater than those 5 to.
  I often see cases where a data store needs to be rebuild from scratch - means copy everything out - reformat - and fill it up again. With 5 data warehouses to or more that is often impossible, because the time is too short to do it in the weekend Management window. In practice this means occasionally that maintenance tasks are not possible as production virtual machines that also use the same data store not work on Monday morning.
  This wouldn't be a problem at all if you create a LUN NTFS instead.
  So I would say the 5 TB vmdk is easier to manage, the NTFS LUN via iSCSI is safer.

  If you go in the direction of vmdk 5 TB - create the vmdk eager-reset to zero and run

  vmkfstools Pei 0 name-of-5 to-disc - flat hard > 5 to - mappingtable.txt
  Keep this file - it can make the difference between disaster and "we lost a few nerves but could avoid the worst."

  In the same context, I always recommend to size your VMFS LUNS so that each can be evacuated over the next night.

• Cannot open the disk could not be locked the file

  Error when you try to share a drive between two virtual machines.  I have two web servers VM and a disk shared data, each web server has 20 GB for operating system disks, and they share a 500 GB drive for data.  I use clustered OCFS2 file system later.

  See the 500 GB drive, but when we turn on the two VM the second throws the following error:

  "An error was received from the ESX host turning on VM Myweb1.

  Cannot open disk ' / vmfs/volumes/MyWeb1/MWeb1.vmdk' or one of the snapshot disks it depends on.

  Cannot lock the file.

  I've read about this error before but can't find where and understand that it's either because I don't set them up right to start with, or that there is some extra config I can do in the s flat *.vmx file?

  Here's what we did when creating virtual machines and a shared disk, is there something missing

  Create 2 new virtual machines for Web servers with disks of 40GB of basis for the operating system and then add a new hard drive to one of the virtual machines in vSphere BUT must be correctly configured for sharing between multiple virtual machines.

  For example, to change the settings > Add > hard drive > create a new virtual disk > choose size and choose 'Thick eager disposition to zero' > under 'Virtual Device Node' choose a "SCSI (1:0)" then finish.

  Once the drive has been zero there would stay out in 'Change settings' > click new controller SCSI 1 and choose virtual disks 'Physical' can be shared between virtual machines on any server.

  Change the settings of the 2nd virtual machine and choose Add hard drive, choose existing, navigate to which you have created the VM 1 drive, make sure you assign it the same SCSI (1:0).

  Thanks a lot a lot a lot for any help in advance

  Did you also step on 2 VM below

  After the disc has been zero go back outside to 'Change settings' > click new controller SCSI 1 and choose virtual disks 'Physical' can be shared between virtual machines on any server.

• Performance of the virtual disks

  Hello!

  Two questions

  1 - it there really a big difference in the performance of the discs thin vs thin discs? one of my friends said slim is slower because he may need more and this growing each time may reduce the speed and performance. is this really?

  2. I get no difference between the discs of updated zero lazy-reset and greedy. that means for the impatient..., are the blocks are written by 0 at the beginning?

  There are a few blocks in the disc ok? then, what is the point to write zero in each of them and then change the exact data we want to be on that block? (maybe there is 1 maybe 0)

  Thank you very much

  So I will use zero - eager to drive thick for my server files (300 users and millions of files) and lazy zero for databases and thin for operating systems and machines at low load of I/O and small changes

  I recommend thick eager-reset to zero especially for databases. It can depend on the workload, however, there are various tutorials for how to configure databases. MS - SQL I usually create virtual discs eager-reset to zero and follow the best spirit of practice of MS formatting NTFS with a 64 KB Cluster size. Where the OS is Windows 2003, don't forget to align the partition! For more information, see Disk Partition alignment Best Practices for SQL Server

  Since, as you have discovered - reset is required will certainly benefit you eager-reset of the virtual disks.

  When you use thin disks, make sure you have the alarms in place to avoid the problems of out-of-space drive!

  André

• Types of virtual disk

  Question:

  Is there a way to know the type of disk via the API or SDK?  I searched the .vmx and hard and can't find out how to easily determine if my guest is thick Eager-reset to zero or felt Lazy-reset to zero.

  For the PowerCLI guys any help would be greatly appreciated.

  vCenter 4.0.0U1

  ESX 4.0.0U1

  Thank you!

  I just tried it on a dummy VM running on ESX 4.0u1 and created 3 VMDK (s) usingn vmkfstools - (thin, zeroedthick and eagerzeroedthick) and if you look at the CROWD for the new VM object and it supports, you will see eagerlyScrub is undefined in all 3 cases.

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  Scripts for VMware ESX/ESXi and resources at: http://engineering.ucsb.edu/~duonglt/vmware/

  Twitter: @lamw

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• The disks have not been washed on the file system

  Hey all the...

  After an update of the BIOS on the hosts of my essay, I was finally able to list as active FT.

  When I click with the right button on a virtual machine and turn on FT, I get an error...

  "Non supported configuration of virtual machines for the fault tolerance. The unused disks of the virtual machine disk blocks have not been washed on the file system. This is necessary to support features such as fault tolerance.

  When I turned off the virtual machine and activate FT, he begins to rub the VM disks... it takes a lot of time.

  Can someone explain to me exactly why he needs to do that? Just trying to understand the technology...

  How a disk get thick-eager reset default? That is to say. is it possible to my model?

  Yes, use the data store Navigator to inflate the disk in question.

  What are the benefits/drawbacks of being thick-eager to zero, rather than just thick?

  A thick disk eager-reset to zero has all the space allocated and set to zero at the time of the creation. This extends the time it takes to create the disc, but the results in the best performance, even on the first entry for each block.

• ESXi6 - VM stun all by extending the eager zero thickness disc

  Hello

  There is a bug in ESXi6.0 which causes stunning virtual machine during the extension of thick disk of eager.

  As in below link, I tried to convert the disc zero lazy before its extension.

  VMware KB: Expand a virtual disk eager-zero causes stun of the virtual machine in ESXi 6.0 GA / 6.0 U1

  But even after svmotion with conversion from one disk to zero lazy, he showed thick zero in vCenter, web client and command line. I then extend a 50 GB to 100 GB drive, which causes my VM to stun.

  Is there any other solution to extend a thick eager zero disk without causing a virtual machine for stunning in ESXi6?

  It is confirmed with VMware that eager thick conversion of zero-for-zero lazy question in ESXi 6.0U1a and is resolved in the update 1 b.

  The solution of the issue is:

  • Eager thick SVMotion zero disc to any other data store and change the type to thin over the svmotion.
  • Make sure the type is thin
  • Now extend a drive
  • Once again, svmotion the disc to the original and this data store times change the thick type zero eager

  You will get the option to change the disc type in the settings advanced during the svmotion.

• Convert PowerCLI ESXi 5.0 thick eager lazy zero at Z fails

  Greetings...

  PowerCLI version 5.0

  5.0 U2 ESXi hosts

  vCenter 5.5

  
  

  I'm moving virtual machines from a data store and change of type of disc to thick on zero eager lazy to zero. The following script keeps failing.

  
  

  Any ideas? or point me to the discussion that can help here please?

  
  

  $DST = get-Datastore-name XXDC_41

  # Define target VM and the disk target

  $Disk = get-VM-name vCO - x 01 | Get-hard drive - name "disk 1".

  Together-hard drive - disk hard $Disk - Datastore $DST - StorageFormat eagerZeroedThick - confirm: $false

  
  

  Together-hard drive: cannot bind parameter 'StorageFormat '. Cannot convert value 'eagerZeroedThick' type

  "VMware.VimAutomation.ViCore.Types.V1.VirtualDevice.VirtualDiskStorageFormat". Error: "impossible to match the identifier name eagerZeroedThick a"

  invalid name of the enumerator.  ' Specify the following enumerator names and try again: Thin2GB, thick, Thick2GB, Thin.

  In PowerCLI 5.0 in thick format zero eager was not a supported option. There is the 5.0 doc)

  ( https://www.vmware.com/support/developer/PowerCLI/PowerCLI50/html/Set-HardDisk.html) display without option of EagerZeroedThick. PowerCLI version 5.5 or later EagerZeroedThick was available)

  ( https://www.vmware.com/support/developer/PowerCLI/PowerCLI55/html/Set-HardDisk.html)

  If you can I suggest that you upgrade to 5.8 PowerCLI (works perfectly with vCenter 5.5 and 5.5 VUM) and then you'll get what you need and can be used with your 5.0 hosts without any problem. 6.0 is the last, but the Crossover components are version specific (i.e. 6.0 Update Manager for PowerCLI can not handle the VUM 5.5).

  Otherwise, you will need to use the underlying API rather than the easier to use cmdlets