Multiple LUNS

Similar Questions

• Storage control IO to multiple LUNS on 1 table

  Yesterday I read on I/o control of storage in vSphere, and it seems logical to me. However, what has not been clarified is if/how it works when you multiple LUNS on the same table, and how you set it up in such a scenario.

  In our environment, we have 2 bays EqualLogic (PS100 and PS6000), with the array created as a single group with a little less of 7 TB of space in RAID 10.

  Most of our data is shared between 3 LUNs, 1 store our VDIs, the 2 other storage server VM, set up a single data store with a certain extent. (I'm trying to develop a plan to better distribute our virtual machines for a server) to get rid of the measure and 2) recover unused space (the server of virtual machines are only about 3 TB in size, but because of servers added and retired, takes more space on the San of 3.9 to).

  Thank you

  Each data store gets its own statistics IGCS, so each of them is controlled indepedently.

• Storage Vmotion of several disks on multiple LUNS

  Hi, I'm under ESXi 4 Update 2 and have a file server with hard on multiple LUNS, I need to migrate the drives out of the old array to storage and from our new.  I want to do online, if anyone knows how to do a vmotion storage disks residing on different LUNS that need to stay on different LUNS?  Thanks a bunch,

  Chris

  using the advanced option when "change you data store" will allow you to separate the files to disc, or basic moves all disk files associated with the guest in question to the same LUN.

• Dynamic disks across multiple LUNS

  It is advisable to extend a drive Windows across multiple LUNS? What would be the impact on snapshots?

  What product you use VMware?

  Are automatically using RDM as you talk covering NTFS LUN partitions? This is not the case if you use virtual disks on VMFS volumes.

  AWo

  VCP 3 & 4

  Author @ vmwire.net

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• How to create the data store with multiple LUNS

  Someone could please tell me that how can I have multiple LUNS in a single data store, is it possible?

  See the "Storage management" section in the document provided in the previous comment. You are probably looking for information on page 104.

• Conslidating multiple LUNS in a single lun without data loss

  I have original started with 2-50 GB LUN as drive C and D for a virtual machine.  Since then, we have had some problems with the virtual machine and wishes to consolidate the LUN down to one 100 GB LUN with a partition C and D.

  I think that I should just clone the virtual machine through to store 100 GB data and the value of the c: 50BG then attach the drive D: current LUN and copy files to your new partition. This will be a thing of your time if this idea works and I have to repeat the process on multiple machines.

  Has anyone found a better way to run this process by cloning or svmotion?

  Thanks for the help.

  So you created 2 50 GB LUN on your San with the VMDK for C on a LUN and the VMDK for others the lun or have you created 2 50 GB VMDK for the virtual machine in a data store?

  If you have found this helpful at all prices please points using the correct or useful!  Thank you!

• How to span multiple LUNS on one (or less) data store (s) in Vmware ESXi 4.1 vSphere environment?

  Hey guys -.

  I currently have 2 hosts ESXi (version 4.1u3), 1 vCenter Server and 1 EMC VNXe3300 SAN (20 to via iSCSI) that make my virtual environment.

  On the EMC is, you create VMware Datastores (which have a limit of 2 TB) then connect these data storage to VMware ESXi hosts.  Once logged in, would continue it the process through the Add Storage Wizard via VMware to connect the disk/LUN storage via iSCSI.  Ultimately, the Lun (s) would then be accessed through the virtual environment (in the Configuration > storage > data warehouses) as generally expected.

  Due to the limit of 2 TB (both on the CEM, Version of VMware and VMFS3) on data warehouses, I find myself with having several data warehouses being created on the side of the EMC and VMware (see photo) appearance.  I know that's not rectifiable via CEM level, but I was wondering if there was any way for me to bring together all these data stores on the side of things VMware.  This way rather than navigate to Configuration > storage > data warehouses and separate iSCSI indicator 6 data warehouses, it would just be a (or more, but less than the existing) data store; It would then extend in all actual data stores that I would.

  I don't know what the appropriate terminology is used to describe it, but I hope someone can help me to what I want to achieve.  Or at the very least, can you please steer me in the right direction.  If this isn't something that can be achieved or it is discouraged, what are the other options which would be recommended?

  Thanks for the help.

  Have a look here: VMFS extended - are they bad, or simply misunderstood? VMware vSphere Blog - VMware Blogs

• Question of PowerCLI rookie on the definition of policies to multiple LUNS at the same time

  Anyone know how I can change the scripts below to include a list of say 10 LUNs, rather than a single one?

  SE connect-VIServer-Server ESXSERVER01 - root - password Password01 user

  esxcli = Get-EsxCli

  esxcli. NMP. Device.SetPolicy ($null, "naa.600xxxxxxxxxxxxxxxxxxxx0000", "VMW_PSP_RR")

  I want to be able to define the strategy for LUN naa.600xxxxxxxxxxxxxxxx0000 by naa.600xxxxxxxxxxxxxxxxxxxx0010...  How to list them in the script?

  I'd do the semicolon separated as such:

  esxcli. NMP. Device.SetPolicy ($null, "naa.600xxxxxxxxxxxxxxxxxxxx0000","naa.600xxxxxxxxxxxxxxxxxxxx0001"; ("' naa.600xxxxxxxxxxxxxxxxxxxx0002 ',"VMW_PSP_RR")

  ???

  AFAIK, you can specify only 1 device to order setpolicy (similar to what you can do with the parameter-d on the esxcli command).

  The best way to do what you are trying to reach is to use a loop on a table.

  Something like that

  $luns = "naa.600xxxxxxxxxxxxxxxx0000","naa.600xxxxxxxxxxxxxxxx0001","naa.600xxxxxxxxxxxxxxxx0002",
      "naa.600xxxxxxxxxxxxxxxx0003","naa.600xxxxxxxxxxxxxxxx0004","naa.600xxxxxxxxxxxxxxxx0005",
      "naa.600xxxxxxxxxxxxxxxx0006","naa.600xxxxxxxxxxxxxxxx0007","naa.600xxxxxxxxxxxxxxxx0008",
      "naa.600xxxxxxxxxxxxxxxx0009","naa.600xxxxxxxxxxxxxxxx0010" 
  Connect-VIServer -Server ESXSERVER01 -User root -Password Password01$esxcli = Get-EsxCli
  $luns | %{
      esxcli.nmp.device.setpolicy($null,$_, "VMW_PSP_RR")
  }
  

• Multiple LUNs to fixed and by specifying the PerferredPath

  Hello community.

  I need back my LUN to fixed and spesify the perferred path.

  I can't seem to get the command works.

  Get-VMhost | Get-scsilun "lunname | Game-ScsiLun - 'fixed' MultiPathPolicy - PerFerredPath 'path '.

  The line works very well on RoundRobin and SRM. But when I insert 'Fixed' I appeal to a Perferredpath, it accepts no witch.

  Any bounced to where I do not see?

  C

  Maybe it's just a typo in the thread, but the setting is - PreferredPath, non - PerferredPath.

  The string you give as the path more resembles a SanId for me.

  Are you sure this is the value that you see in the LunPath property after

  Get-VMHost  | Get-ScsiLun -CanonicalName  | Get-ScsiLunPath | select *
  

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• Best practices for the simple placement of vmdk on multiple LUNS for vm

  Only VMware has a recommendation to put several files vmdk to a single virtual machine on different LUNS?

  I know it's possible, but is there any reference to it is not not a good idea for a particular reason? Is there loss of features or performance?

  I don't think there is a right or wrong answer here regarding the placement of VMDK.  I agree with what others have said about her becomes more complicated when you across several data VMFS stores VMDK.  But having said that there are good reasons why you can spread them out.  You can store files to boot OS on disk volumes and slower data for servers in high performance like SQL and Exchange on a higher level of storage for example.

  Another thing to keep in mind - if I remember correctly, by default a snapshot for a virtual machine with VMDK in several stores data is stored in the location where the first VMDK was created.  It is important to understand how snapshots can become very large, if you're not careful, and you could accidentally fill a LUN, and take a number of VMs.  I believe you can make a change to the VMX to change the location where the snapshot files are stored so you can look into that as well.

• cartridge of paths multiple LUN settings

  Hi all

  was wondering if a cartridge is to get this info in vfog 6.7?

  or maybe someone has another way to get this info?

  Thanks in advance.

  Foglight for storage (storage vFog) management has the ability to see the tracking information according to your type of array and tissue

• Move LUNS from physical Windows area to an ESX VM without formatting

  Hello. I'll convert machines physical (with converter stand alone) in virtual machines on my ESX servers.

  These servers have local drives (for the OS, the quorum and other data readers) as well as multiple LUNS.

  First question:

  My thoughts were to convert only local drives (jump the LUNS as they are already on the SAN). Then have the path of the SAN people (let me see) to my ESX servers. BIG draw back is that when I first plug a logic unit number, he wants to format. How can I connect to it and knew him ESX as store data without formatting? On the page [disk/LUN - formatting], there is no way NO format.

  Second question:

  When you allow an ESX box to see a logic unit number that uses a Windows box, there is assertion that ESX wouldn't let me even see. It happens just to expiry. Is anyway about this or what I was removing people SAN paths to my Windows boxes and then add first to my ESX boxes later?  The SAN is controlled by another agency and this would add a lot of time in the middle and these servers are critical and can not be down for long.

  If anyone can provide fairly detailed steps I would really appreciate it.

  INFORMATION:

  vCenter

  4.1.0 345043

  ESX servers

  4.1.0 < various levels of patch >

  physical boxes

  Windows 2003

  SAN

  Hitachi Fiber Channel

  (1) you can use these LUNS as RDM (raw device mapping), in which case you do NOT have to reformat them.  You just create a mapping of RDM.  See page 140 of this document: http://www.vmware.com/pdf/vsphere4/r41/vsp_41_esx_server_config.pdf

  (2) Windows will apply the locks to the volume.  You need service entirely volumes of old guests prior to commissioning for the new ESX hosts.

• iSCSI LUN maximum

  So I'm looking at the documentation for maximum rates of configuration and it is said that the maximum LUN of Fiber Channel is 2 TB. This also applies to the iSCSI LUNS?  For example, I have an iSCSI LUN 5 TB ESX 'sees', but when I try to establish VMFS on it and add it to the usable storage, it allows me to choose the whole 5 TB, but only write 930GB and says "complete".

  I have to chunck this 5 to in max 2 TB LUNs, and then write my 5 to VMFS on multiple LUNS instead of one?

  Thank you!

  Yes, the limitation applies to iSCSI too. As you said already correctly, you must present the LUNS with Max 2 TB less than 512 bytes.

  The reason for this limitation, see http://kb.vmware.com/kb/3371739

  André

• connect several LUN to a virtual machine

  Hi all

  I was wondering is it possible to connect multiple LUNS to a Linux VM? We want to store data from different departments in separate LUN. Any suggestions are appreciated.

  Thank you

  Ke

  Hello.

  Yes, you can present several as RDM LUN to a virtual machine.  I have a Windows file server built exactly as you described, using the same approach.

  Good luck!

• How to use a larger than 2 TB iSCSI LUN?

  I have a server ESXi (4.1 U1) connected to an iSCSI NAS network, where 4 LUNS have been defined and presented to this host. all LUNS are 3 TB in size. ESXi correctly sees the LUNS and recognizes their size 3 to.

  I know that the maximum size for a VMFS data store is 2 TB, so creating a single data store for each logic unit number would be a waste of space. I know also that the creation of multiple data on a single LUN warehouses is not recommended, and it does not seem work either: If there is already a data store on a LUN, the just vSphere Client won't let me create something else here, it is not even list it in the list of available devices for the creation of data warehouses.

  I know that I can use extensions to create a store of data from more than 2 TB, but it seems to work across multiple LUNS: when I try to increase the size of a data store using the same logic unit number where he resides, ESXi is trying to increase it in fact, it won't go above 2 TB in size.

  My question is: is it possible to combine two extensions in the same logical unit number, so actually creating a composed of 2 extensions 1.5 TB 3 TB data store?

  If this is not possible, is it possible to create two data warehouses in the same iSCSI LUN? I know that this is not recommended, but it should at least be possilbe... but looks like it's not.

  If this is not possible, then... How to make use of these 3 to LUN?

  You can carve up the LUN and then it recombine.

  How to use these LUNS 3 TB is to get rid of them and the re - present as< 2tb="">