Question about SAN storage

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• New ESX5 host - questions see SAN storage data and much more

  Just installed a new vSphere host 5 and added to a cluster with 2 x 3.5 host (in my vCenter Server 5)

  3 questions.

  1. I can't see LUN (on SAN datastore). Have zoned out my new HBA etc and still no joy. Tried the host that it recharges and rescan option etc. Any ideas?

  2 - my 3.5 hosts I was able to specify different default gateways for my Console and VMKernel Service (both on the same vswitch). I have the Service Console configured vmkernel. 10.16.5.x and 172.16.5.x (I know there is no Service Console in vSphere 5\ESXi) but on my ESX5 host I can't specify different gateways for VMKernel and network management. I'm afraid that vmotion etc will not work between 3.5 hosts and host 5, because although the VMkernels have addresses in the same range, they have not the same gateway. I have to add a local route on the host ESX 5? Or am I wrong configured somewhere?

  3 minor irritation. My local drive in my new server is showing that the data store. Can it be hidden or changed to not be visible in the data store? I want to only display my SAN data stores.

  Thank you very much

  Steve

  (1) sounds like a SAN configuration problem - you should be able to see the LUN masking and zoning is correct in the FC switch and storage array.

  (2) you could specify wear two ways because the vmkernel and the Service Console were different and supposed to be on different networks - you no longer have a gateway single vmkernel - traffic will work as long as they are on the same subnet - a gateway is used only when you exit the subnet

  (3) I do not think it is possible to hide the local data store - but I could be wrong

• Basic questions about the storage on ESXi

  Hello

  We are about to implement a VMware ESXi environment and I would like to get some clarification on the storage in ESXi before proceeding.

  Material: 3 guests and HP EVA4000 FC 4 TB SAN.

  We execute the file, mail, web, directory, application and database servers.

  Some of these services require quick I/O and some require data to be 'seen' by at least 2 virtual servers for HA.

  Can I use discs RDM for HA/Clustering servers and for those who need quick I/O, or can I use VMDK:s?

  If I present to you the entire 4 TB SAN ESXi can I then several virtual servers use certain parts of this 4 TB SAN as discs RDM and other servers use certain parts of this SAN as VMDK:s? (Do we have virtual HBA:s in ESXi?)

  Thank you

  Yes. But you must consider as usual VMDK of hard drives in this case, you must install the cluster file system there.

  ---

  VMware vExpert 2009

  http://blog.vadmin.ru

• General question about adding storage Readynas 204

  I have Readynas204 on x-raid with three discs of 3 TB sends me some 5.45 TB of storage. Yesterday I added another 3 TB and readynas recognized without any problems but the storage size has not changed. I installed the new drive straight out of the box and I don't think that it should reformat because the drive status is green and the 'Format' button is grayed. The State is green, but that is to say the reconstruction of the volume. My question is I am suppsed to see the storage of 8,38 to size once the volume rebuild process is finished? or I suppsed to see increased storage size rightaway after adding the 4th disc? Thought I should ask this here first before submitting a ticket. Thank you

  You should see the larger size when the rebuild is complete.

• Small Question about NFS storage.

  I try to use NFS storage (RHEL5.3) for my VM storage space.

  The fact of this cluster VM support.

  some time before I read in ESX3.0, VMcluster is not supported in NFS storage.,.

  Please confirm as soon as POSSIBLE.

  NFS is supported.

  Be sure to use v3 over TCP with the no_root_squash option.

  André

• Question about data storage disk and its related material

  DB version: 11 GR 2
  
  To set up the CARS, I have x 86 (Intel) 2 PCs of the same specification. I'm going to install Solaris 5.10 (x 86) on both. I don't want to use VM ware or Openfiler.
  
  Question1.
  I would like to know what storage device that I use for installation at home of RAC?
  
  Question2.
  What additional hardware (cards) should I add to both nodes to connect to this network storage system?
  
  Published by: ScottsTiger on October 6, 2010 03:27

  ScottsTiger wrote:
  DB version: 11 GR 2
       
  To set up the CARS, I have x 86 (Intel) 2 PCs of the same specification. I'm going to install Solaris 5.10 (x 86) on both. I don't want to use VM ware or Openfiler.
       
  Question1.
  I would like to know what storage device that I use for installation at home of RAC?

  FireWire. Nothing else really which is pretty cheap for a "budget home" and always meets the needs of Basic for a RAC storage. You can pick up 1 TB and more big disk Firewire 800 external, with 2 ports - allows to connect two machines on the external drive at the same time.

  It is "sort of" supported by Oracle off-production - or has been in the past.

  Not sure if Solaris kernel Firewire driver required to support this well - only made on Linux myself.

  Question2.
  What additional hardware (cards) should I add to both nodes to connect to this network storage system?

  PCI FireWire cards if you have not already shipped Firewire 800 ports on these 2 systems.

  PS. had a quick look at support.oracle.com and found the following note: ' + how to install a cluster using firewire to access a shared disc on RHEL4/EL4 [ID 433889.1] + '. Nothing on Solaris if. Why Solaris btw? Especially on x 86? Linux is a much more commonly used o/s for RAC clusters.

• Question about persistent storage

  By reading the developer's guide, I read this

  The following native data types can also be stored persistently:

  • java.lang.Boolean
  • java.lang.Byte
  • java.lang.Character
  • java.lang.Integer
  • java.lang.Long
  • java.lang.Object

  ...

  Previously, I was looking for a way to store a BlackBerryContact object with persistence.  The answer was that basically it is possible to reimplmenting the class myself.  However, if objects can be stored, would it be possible to mount the BlackBerryContact as an object, store it and cast then back after recovery?  It seems a bit simple to work actually, but I thought I could ask for more.  Happy Obama day!

  It is not advisable to directly store instances of outer class.

  External means that these classes are not yours.

  For example - if you have created an instance of the com.mycompany.myapp.MyClass class and stored in the persistent store - then when you uninstall your application - these instances of class will be removed too the persistent store.

  But if you directly - save an instance of the class java.util.Vector, or BlackberryContact, they will remain in persistent memory, your application is uninstalled.

  It is not a good approach.

  Use Memento design pattern.

  Create a class which instance stores snapshot of information to start an instance of BlackberryContact and store it in persistent memory.

• Hi there, I have a question about storage, even if I have 2, 53GB, storage watch 21, 99GB usage, why this difference? I use an iMac 2009, thank you!

  Hi there, I have a question about storage, even if I have 2, 53GB, storage watch 21, 99GB usage, why this difference? I use an iMac 2009, thank you!

  Spotlight re-indexing.

• Questions about the implementation of clusters of storage and DTS on active cluster

  I have a few questions about the implementation of clusters of data store and SRS storage in VSphere 5.1.

  We have a data center with about 15 HP blades and a few servers non-lame.  The hosts are all either VSphere 5.0 or 5.1.  Our back-end storage is an EMC VNX 5700 with about 20 stores of data.  All the VMWare is managed by VCenter 5.1 running on a dedicated physical machine.

  Currently, each data store is used individually; No piles of data store are put in place.  When a new virtual machine is created, the administrator usually chooses the data with the most space store.  Periodically, we will go back and manually storage vMotion machines to balance the load.

  Recently, we have expanded the VNX storage, so we now have LUNS in different pools, with different levels of performance.

  What I would do is set up for the data store clusters, so that us when a virtual machine is created, the administrator must not know what data store is in which pool.  Also take advantage of the DRS storage so that the burden of storage will be "refine" himself a little.

  I know the setting up of a cluster of storage in a 'clean' environment is quite simple, but my concern is creation/conversion data warehouses existing in active production in the cluster, while they are used.

  If I access the screen "data warehouses and store data from clusters ', right-click on the data center and create a cluster, and then move the various data stores in the new cluster, will there be an interruption in the production running systems?

  I also wonder about activation of storage i/o control.  It is not currently enabled on data warehouses.  I know it's useful for the StorageDRS, but will be allowing any negative impact on the system?  If I turn on the warehouses of data, is there anything else I should do or set in addition to all that allows him?

  Finally, we are in the process of Site Recovery Manager configuration.  SRS has an impact on the configuration of the data clusters and DTS store?

  Thanks in advance for your comments.

  Mike O.

  Gregg Robertson wrote:

  Hello

  Clusters of data and using DTS store doesn't impact RS even if you create a cluster of data store for storage of replicated data and another for everyone else, this way you machines virtual you want to replicate are not moved on warehouses of data that are not replicated , but will still have the ability to move if there is a conflict.

  Gregg

  With all due respect but SRM and DTS don't go together. SRM does not at all support the use of DTS. So if you are configuring SRM forget DTS for now.

  Reason for this is that SRM knows no DTS and VMs can be in flight when a failover should occur, and bad things can happen. Also, the protection breaks when a virtual computer is moved between data warehouses in a cluster data store.

  In short: don't go there.

• Oracle 11g R2 RAC on IBM with SAN storage

  Hello Experts,
  
  I design an implementation for RAC Oracle 11 g 2 on AIX 6.1 with IBM's SAN storage. My drawing do not include Oracle ASM, I know, it is recommended to use Oracle ASM, but my purpose is not included
  
  I read the Guide of Installation of Oracle Grid Infrastructure and I have below questions about storage configurations:
  
  1. do I need a special configuration to replace the DSO?
  2. is it compulsory to use HACMP (IBM's Clustering solution) because I don't use ASM? Since based on the infrastructure Grid section 3.2 Installation guide (the Storage Configuration shared): [http://download.oracle.com/docs/cd/E11882_01/install.112/e17210/storage.htm] there is a section 3.2.7 "Configuration HACMP multinode disk Heartbeat (MNDHB) for Oracle Clusterware" so my question is it is mandatory to use HACMP if I don't want to use ASM?
  3. in the same above installation guide, mentioned in section 3.2.8 that "to use the raw logical volumes for Oracle Clusterware, HACMP must be installed and configured on all nodes in a cluster." what is raw logical volumes? is it compulsory to use it? Since I'm not on ASM?
  4 installation guide, in sections 3.2.3 to sections 3.2.9 are these prerequisites sections sections 3.2.10 to 3.2.15? or I can simply ask section 3.2.10 to 3.2.15 without applying 3.2.3 to 3.2.9?
  
  One last Question:
  
  ASM is integrated with the cluster software, do a separate license or license the license of the ASM cluster cover?
  
  Kind regards

  NB wrote:
  Hello Levi,

  the information provided is very useful. But what I heard in the installation guide network infrastructure that the raw device needs HCMP while GPFS need not of HACMP, GPFS is a cluster provided by IBM file system.
  Your input please?

  Hello

  Raw disk device (RD) is the LUN (disk) storage mapped on AIX.
  Raw logical volume (RLV) is the LUN (device) created the LVM of AIX.

  If you use devices of raw disk that you don't need HACMP, because AIX (core) has only receive instructions from Oracle to read and write, AIX does not support concurrency control in the raw disks, this control is managed by Oracle.

  If you use raw logical volumes (CLVM) HACMP must be installed and configured on all nodes in the cluster, volume logic is a feature of AIX (IBM) to enable simultaneous mode, you install HACMP, Oracle not manage concurrency control because Oracle does not know that there is an LVM behind.

  You are right, that the new version of GPFS are usable without HACMP.

  Kind regards
  Levi Pereira

  Published by: Levi Pereira on October 8, 2011 17:26 # update the info on gels of features

• Satellite A350D - 20K - Question about upgrade second HDD + Temperature

  I have a question about my laptop. I have notticed it is a second location of HARD disk on the bottom.
  Is it possible to use this to increase my storage?
  And if yes, how do I do that? I don't see all the connectors.
  What type of HARD drive to use in case it is possible to use this slot machine?

  My second question is on my laptop to be very hot after a short period of use.
  I installed speedfan to record the temperature. When I start the laptop, it already is between 45 and 50 degrees.
  He stayed there for half an hour and then it starts to get warmer. When I start to use the laptop for anything, it triggers to between 70 and 80 degrees.

  This does not seem normal to me. I tried to clean the vents with compressed air, but it has not made a difference.
  I searched on the internet how to take the laptop part for proparly cleaned TI.
  But I can't so I'm looking that destroy it.

  This could be the cause and more importantly, how can I solve this problem?

  Tom

  The second HARD drive bay contains the HARD drive connectors?
  If Yes, then you can use a SATA 2.5 HARD.
  If there are no connectors, then you will not be able to use the second HARD drive

  > I have installed speedfan to record the temperature. When I start the laptop, it already is between 45 and 50 degrees. He stayed there for half an hour and then it starts to get warmer. When I start to use the laptop for anything, it triggers to between 70 and 80 degrees.

  CPU and GPU produce a lot of heat. The heat dissipation is always created then there s nothing unusual that the temperature rose to higher level.
  You can change the settings in Win 7 power management. You can set the CPU to lower performance and can increase the activity of fan, which will help lower the temperature.

• A few questions about FileConnection/JSR 75

  [I posted these issues some time ago, but got no response]

  I am writing an application that targets the 4.2.1 and upward. After reading everything I can find (api docs, forum, kb, guides, web search), I still have many questions about the BlackBerry file system:

  1. Are store / and SDCard / internal name of the memory and the SD card root on all BlackBerry devices?
  2. JSR 75 leaves open the question of whether an application sees the virtual roots that are private to itself or if all applications share the same roots. How does on BBs? I have seen many examples where the path name starts by "/ store/home/user/app_name /" or "/ SDCard/BlackBerry/app_name / '. Is this necessary, or can my request simply use "/ store /" or "/SDCard/" and add the file name? If the former, are there best practices documented anywhere to manage collisions between app names?
  3. If the files are visible in many applications, there are layers of security available to protect data (I think something similar to how a PersistentObject can be encapsulated in an object ControlledAccess using the PersistentStore) or do make us our own?
  4. I read on this forum somewhere that store / is not available when a device is connected via USB and mass storage is active. Is this and other information like this documented somewhere?
  5. May restrict the COMPUTER strategies how an application uses FileConnection, particularly to the store / and SDCard /? If so, is there any guidance on common restrictions that developers should know when you write applications for general use?
  6. What restrictions are there on the names of files (allowed characters, length, etc.)?

  Any guidance or pointers will be appreciated!

  Hi Ted,

  I'm not sure on your remaining questions, but I'll try to answer as best I can:

  1. did not have different names on the devices until today.

  2. you have no problem on SD card and you are allowed to save files anywhere it. Not quite sure

  shop around, but you should be able to save files on the file system visible and own created folders. There will be

  some folders inaccessible devices that require internal processing (installed Te of applications etc..).

  3. you can open files as readonly etc. but elsethere it is not the layers of security installed. If you have data

  issues of security, you must save this Te using the RuntimeStore class!

  4. I don't know, but it's a fact. But for this purpose, you can detect the toggling of mass storage

  programmatically.

  5 see point No. 3

  6 see restrictions as specified in JSR 75.

  Kind regards

  Jochen

• Small questions about Dataguard

  Hello

  I have a few questions about Dataguard. I'm new to DG, carry me so for the display of these fundamental questions:

  We plan to install Oracle 12 c to Win 2012 R2 with primary and physical intelligence on different physical servers. We are looking for HA solution, but cannot afford to license CARS. The two primary & Eve are going to be in the same data center connected via a 1 gigabit network. So I have a few questions related to it.

  (a) since both of our primary & Eve is going to be in the same data center with good connectivity. Can I assume that although Data guard is more DR solution, in our case it would be HA solution since we have no network latency.

  (b) is it safe to assume that where primary fails, then the day before can automatically take the role of primary education without any manual intervention, possibly using Dataguard broker?

  (c) so I understand that where primary breaks down, the existing connections transfer automatically from primary to standby db (most recent primary), but how my web based java application will know that more recent connections must be sent to the standby db Server (more recent primary)? I guess net Oracle has a provision to handle this? Who can be automated?

  (d) given that I have only 2 physical servers, can I deploy broker Dataguard on a normal PC (since it is a thin client) assuming the PC is kept in the data center and is online 24/7?

  (e) I was reading about the modes of Protection, account required to our current situation & infrastructure, I choose 'Maximum availability Mode' instead of 'maximum Performance '.

  (f) what is your point of view about Oracle integrated security? I hear too much on Oracle failsafe, because people generally go to a combination of CARS & dataguard for HA? We have a few additional storage that can be shared between the two servers, but I feel with literally no DG network latency can provide us HA.

  Concerning

  Learner

  (a) since both of our main & secondary is going to be in the same data center with good connectivity. Can I assume that although Data guard is more DR solution, in our case it would be HA solution since we have no network latency.

  Well it will not provide the level of HA that is RAC. RAC is a Transparent Application failover. With a physical standby, you need to apply some delay for a failover operation. You can implement the observer that can automate the failover and reduce the time.

  (b) is it safe to assume that where primary fails, then the day before can automatically take the role of primary education without any manual intervention, possibly using Dataguard broker?

  This isn't really the DG broker, but rather the observer you will need to implement. The DG broker automate failover. It will be the observer who "sees" (where its name) that the principal is down and initiate the failover process. To do this, the observer will use the DG broker, so it will be necessary.

  (c) so I understand that where primary breaks down, the existing connections transfer automatically from primary to standby db (most recent primary), but how my web based java application will know that more recent connections must be sent to the standby db Server (more recent primary)? I guess net Oracle has a provision to handle this? Who can be automated?

  You'll want to read on the QuickStart failover. http://www.Oracle.com/technetwork/articles/smiley-fsfo-084973.html

  (d) given that I have only 2 physical servers, can I deploy broker Dataguard on a normal PC (since it is a thin client) assuming the PC is kept in the data center and is online 24/7?

  The DG broker is required to run on the database server. The DG broker will run on the primary and standby. I think that what you're asking really anything is if the observer can run on a PC. Yes it can. However, it is probably not a good idea. A PC will not have the internal hardware redundancy, a server can have. If the PC can fail more often than to a server. And if the gods are bad, it will fail when you most need.

  (e) I was reading about the modes of Protection, account required to our current scenario & infrastructure, I choose 'Maximum availability Mode' instead of 'maximum Performance '.

  Your choice should depend on the amount of data loss is acceptable.

  (f) what is your point of view about Oracle integrated security? I hear too much on Oracle failsafe, because people generally go to a combination of CARS & dataguard for HA? We have a few additional storage that can be shared between the two servers, but I feel with literally no DG network latency can provide us HA.

  Oracle integrated security only works on Windows with a MS Failover Cluster. Real DBAs do not have Oracle on MSFC.

  See you soon,.
  Brian

• Question about cloud connectors

  We try to create a cloud to Eloqua connector. I read the CloudConnectorSampleGuide. I have a few questions about the expected data models and models of general implementation.

  Configuration of the connector of the cloud

  • The CC stores the identification information for each configured CC step Eloquya Eloqua?
    • What are the guidelines for the safe password storage? (I can't store the passwords as dirty one-way-hash that I need the password during execution.  The two-way hash gives an illusion of security but is not better than the plaintext).
  • When the CC is configured, where credentials should take place between the 1st and the 2nd screen? (i.e. as a hidden form field, session cookie cookie/etc.)
  • Eloqua warns the CC when a step is deleted?

  Cloud connector performance

  • What is the average number of steps configured Single that manages the CC?
  • Is it possible for a CC to have 1000 s and unique not configured to query?
  • What are the guidelines for scalability when the connector has to travel 1000 steps configured and survey? The CC requires a worker architecture to manage a large number of configured steps?
  • Are there best practices around the CC recovery hangs
    • For example: CC acquires the State waiting for members and moves to the current State. The CC blocks before the end of the stage. What is the approach suggested for

  recovery of the tasks in the current handling during recovery state? (assuming I have multiple instances of CC of the Eloqua poll). Is the connector of cloud supposed to maintain States of WIP to manage recovery correctly?

  Dmitry, once again, it is entirely to the developer.  When you add contacts to a stage, they will be processed in batches.  There is no limit to how much you add, and since they are left to step up to that dealt with by the connector, how long they sit depends on how long your connector takes to do its job.  Expectations, of course the faster you can deal with the best.

• Oracle Rac on San storage

  Hello

  We are at the heart of the definition of a process for installation of 2 node to a san storage device.  Oracle 11.2 on Rhel 5.

  What is the process of implementation recommended for shared storage.

  We want the mirroring to stay at the storage level.

  * NFS without ASM

  * NFS with ASM

  * LUN with ASM

  * LUN without ASM

  All other as appropriate.

  I went through the documentation, it gives options, however, does not tell best practices.

  Thanks in advance everybody and apologize if there is already a post about this and I repeat it.

  The only choice, I will focus on what is LUN (fiber or Infiniband fabric layer) with the ASM.

  And no ASMLib. (optional, not required)

  Set the devices property LUN via udev. Configure logical device for ASM using MPIO.

  I'm going to call any other method, below.