Policy path defined LUN

Similar Questions

• Policy path MSCS?

  For MSCS configuration, what should I set the path policy too? I have not found a best practices doc about it. If someone could point me to one that would be great.

  Thank you!

  ESX recognize storage and use the right policy.

  For active/active (on the same logical unit number) is set to the policy. Active/passive is MRU.

  Usually, I do not change the policy.

  Note that I have say active / active on the same LUN.

  EMC CX, AX are also active / active, but on different LUNS (1 MON belonged to 1 controller).

  André

  * If you found this device or any other answer useful please consider awarding points for correct or helpful answers

• See the number of paths per LUN by host

  Hello

  I saw so many scripts these days on how to check my connections of storage, but I still don't get the info for that I'm looking. I'd like to see for each host for each LUN (RDM / Datastore) the number of paths. I found scripts that show me the active paths, paths of deaths and work, but none of them helps me to see the number of paths for each host.

  The following Luke good script seems to be a good starting point, but again once it shows total by hba, that I need for each host per lun.

  $esx = get-VMHost vcdvm580.virtualcenter.lan

  foreach ($hba to (VMHostHba Get - VMHost $esx - type "FibreChannel")) {}

  $target = ((get - see $hba. VMhost). Config.StorageDevice.ScsiTopology.Adapter | where {$_.} Adapter - eq $hba. Key}). Goal

  $luns = get-ScsiLun - Hba $hba - LunType 'disk '.

  $nrPaths = ($target | % {$_.}) Lun.Count} | Measure - Object - sum). Sum

  Write-Host $hba. Device ' target: ' $target. County "devices:" $luns. County ' path: ' $nrPaths

  }

  Any help would be appreciated.

  Gabrié

  You mean something like this?

  $esxName = "MyEsx".

  $esx = get-VMHost-name $esxName

  $esxcli = get-EsxCli - VMHost $esxName

  $hba = get-VMHostHba - VMHost $esx - type FibreChannel | Select the name of ExpandProperty-

  $esxcli.storage.core.path.list () |

  Where {$hba - contains $_.} Adapter} |

  Group-object - property feature |

  Select @{N = "MON"; E={$_. Name}},@{N='#path'; E={$_. Group.Count}}

• Reporting on a privileged path to LUN

  PowerShell newbie question.

  My environment has several hundred ESX hosts, of which the majority is connected to EMC SAN storage. Each logic unit number has two active/active configured paths with the default value is Path Selection of Fixed (VMware).

  One of the paths is better I can find don't use the vSphere client and digging at each UNIT number, which given the number will take days so I thought I'd try and script. Thing, that's all I can manage to extract is the paths and the fact that they are fixed, but I can't extract that path is preferred.

  Someone at - it an idea?

  Thank you

  P.S spent about 2 days of trawling the Internet and there are a lot of files on the definition of the preferred path but none on the receipt of such information in the first place.

  Try it like this

  {foreach ($esx in Get-VMHost)

  foreach ($lun in (Get-ScsiLun - VMHost $esx)) {}

  Get-ScsiLunPath - ScsiLun $lun | `

  Select @{N = 'Host'; E = {$esx. Name}},@{N="LUN '; E = {$lun. CanonicalName}}, LunPath, favorite

  }

  }

• How can I get the current path of LUN?

  I want to know the active path for all my lun. How can I get this value?

  Tios thanks!

  Best regards

  Xavier

  VCP4 and professional VCP3 certified VMware.

  -

  ---

  If upon that esta o any other campaign respuesta ha sido utility, votalas. Gracias.

  If you find this or any other information useful or appropriate, please consider giving points. Thank you.

  You could do something like that

  $report = @()
  Get-VMHost  | %{
       $esx = $_
       $_ | Get-ScsiLun | %{
            $lun = $_
            $_ | Get-ScsiLunPath | %{
                 $row = "" | Select HostName, LUNname, Path, Active
                 $row.HostName = $esx.Name
                 $row.LUNname = $lun.CanonicalName
                 $row.Path = $_.Name
                 $row.Active = $_.State
                 $report += $row
            }
       }
  }
  $report
  

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  Blog: LucD notes

  Twitter: lucd22

• What retention policy is defined as REDUNDANCY

  DB version: 10.2.0.4
  
  Just trying to understand the concept of redundancy.
  
  If I put my set on REDUNDANCY as retention policy

  CONFIGURE RETENTION POLICY TO REDUNDANCY 4;

  and all the backup files are stored in a place like ' / u04/rmanbkp /' (4 of them) multiple copies of the same data file with different names (a unique name generated using the parameter % U) will be created here. Right?
  
  The next day, all copies of data file will be obsolete. Right?
  
  Recovery window retention policy is more widespread than redundancy. Right?

  No, 'REDUNDANCY 4' does not 4 copies for backup generation.
  It shows only the last 4 backups (if more than 1 or more than 4 or more than 4 weeks) must be kept.

  Hemant K Collette

• 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

• ESXi 5 - Set Roundrobin multipathing policy on all LUNS

  Hi all

  Does anyone know of an esxcli command to set the multi-channel management strategy on all THE storage of current and new data on a host to Roundrobin?

  We were able to do in ESXi 4 with the following command, but this no longer works in 5:

  esxcli ATAS setdefaultpsp ATAS - VMW_SATP_EQL - psp VMW_PSP_RR nmp

  esxcli corestorage claimrule charge

  esxcli corestorage claimrule run

  Thank you

  Instead of

  esxcli ATAS setdefaultpsp ATAS - VMW_SATP_EQL - psp VMW_PSP_RR nmp

  You can use the OT

  esxcli storage nmp ATAS series - default-psp VMW_PSP_RR - ATAS VMW_SATP_EQL

  André

• Multichannel policy statement

  Hello

  I use a script to get strategy multichannel for guests. What I need is a way so he could send me the report when it is in place. The problem is that it should report only on warehouses of data/hosts who do not conform.

  Example: (if we check for hosts who have a policy path defined as round robin report should have all the hosts that are against this rule - fixed/mru)

  $Hosts = get-Cluster cluster-name | Get-VMHost | Name sort

  {ForEach ($VMHost in $Hosts)

  $ScsiLunsInfo = $VMHost | Get-ScsiLun LunType - drive
  {ForEach ($ScsiLun to $ScsiLunsInfo)
  $PathPolicy = (get-ScsiLun CanonicalName - $ScsiLun - VmHost $VMHost). MultipathPolicy

  Logical #The is required in this case to display all hosts which have a policy of fixed/mru path. The format of CSV file should have something like "PathPolicy".

  "# of $ScsiLun on $VMHost is $PathPolicy.

  If ($PathPolicy - don't "RoundRobin") {}

  Export-csv "C:\somefile.csv".

  }}}

  THX,
  A

  This is the additional code, I wanted to say in my post in the previous post.

  One way to resolve this might be something like this

  $Report = @()
  
  $esx = Get-Cluster MyCluster | Get-VMHost| Sort Name ForEach ($VMHost in $esx) {
      $record = Get-ScsiLun -VmHost $VMHost -LunType disk |      where {$_.MultiPathPolicy -ne "RoundRobin"} |      select @{N="VMHost";E={$VMHost.Name}},CanonicalName,MultiPathPolicy    if($record){
        $Report += $record    }
  }
  if($Report){
    $Report | Export-Csv "C:\somefile.csv" -NoTypeInformation -UseCulture}
  

  In this case, there is no CSV file created when all LUNS have RoundRobin

• Path policy change

  I have a unit number MRU political logic.

  So what happens if I change the fixed access path selection strategy and indicate a different path than the preferred path.

  Is there risk potential or downtime for my connection to storage (like package drop...)

  I thank in advance

  Hello

  Ideally, you should see any problems when changing the path of lun selection strategy. However I prefer to do when the virtual machine is not running on the ESXI host.

  Concerning

  Mohammed

• increase the number of paths to the LUNS

  If I created an ESXI host with 2 paths to LUN now, then the storage team increse that 4 paths later, causes problems? When the paths are increased by 4, it's just a matter of a new analysis running?

  As long as your storage administrators area appriately you can rescan and see the new paths.

• How many active paths by a LUN on the controller use Active/Active array.

  Hi all

  I have a symmetrical controller active/active table and two HBAs on the host ESXi (also two SAN switch).

  In this case, I have 4 paths per LUN, right!

  I wonder how active paths by a logic unit number exist at the same time, when I put the round robin PSP.

  and also how much marketshares of controller active/active table against active-passive array controller in production about.

  Thank you all.

  VAAI provides a provisioning also with many other functions.

  Discount in State of TP is disabled ESXi5 U1 and more, due to the performance bugs (bad enough). See the following KB: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2007427

  It is rehabilitation possible storage when I delete some files on the virtual machine (not delete any VM storage vMotion)?

  No - TP reclaramtion only works on removing a VMDK set.

  In other words, VAAI with Thin Provisioning supports retrieval based on storage when vDisk VM has been diminished?

  N °

  If so, how VAAI note thereon made vDisk was decreased?

  This isn't.
  

• How can I change the policies of creating paths in vSphere?

  In 3.x, I was able to run

  esxcfg-mpath - political = rr - favorite - access way = vmhbaX:X:X - lun = vmhbax:x:x

  However in ESX4, I can't understand how to display what the current policy is defined as SRM I.E. or fixed via a command line.

  Don't want to use VC as I have far too many LUNS to verify.

  Read the SAN Configuration guide on page 79: http://www.vmware.com/pdf/vsphere4/r40_u1/vsp_40_u1_san_cfg.pdf

  Now you must change the psp of path used by a logical unit number.

  Marcelo Soares

  VMWare Certified Professional 310/410

  Technical Support Engineer

  Globant Argentina

  Review the allocation of points for "useful" or "right" answers.

• CF Storage ALUA, LUN trespassing and some doubts

  Hello!

  First of all thank you all for this great community!

  I'm setting up a cluster of small vSphere 5.5 and everything seems to be ok, but I have my doubts that I want to share. The configuration is the following:

  VMware ESX 5.5u2 with two single HBA Emulex 8 G. (Host_HBA1 and Host_HBA2)

  NetApp E2724 FC 8 G (two ports per controller) dual controller and configuration active theorytically. (Controller1_Port1, Controller1_Port2, Controller2_Port1, Controller2_Port2)

  Two switches from Brocade s300 with single initiator zoning for multiple targets (Switch1: Host_HBA1 Controller1_Port1 and Controller2_Port1 and Switch2: Host_HBA2 Controller1_Port2 and Controller2_Port2)

  Wiring seems to be OK and vSphere detects 4 paths per LUN, defines the driver seat automatically Robin and defines two active paths (e/s) and the other two as Active.

  In the Netapp LUNS are configured as LUN in VMware O.S. (they are Dinamic disk pools Volumes) and TRA seems to be enable for this kind of host.

  Well, I tried different tests (Storage VMotion between different LUNS, VMware IO monitor, create and delete virtual machines...) and everything seems to work smoothly. Strange behavior only I noticed is that when you create the storage system volumes, they are assigned to one or the other controller, and they have a "preferred owner" (ALUA). When, for example, I make a storage VMotion between two data warehouses (I have a store of data by logical unit number) and that LUN have different "privileged" controllers (LUN1 in Controller1 and LUN2 to Controller2) I noticed that the LUN2 is automatically moved to the Controller1. I don't know if this is normal behavior to improve performance or I have some configuration problem (I have a message in the journal of NetApp storage which States: I/O volume shipment implicit transfer and eventually an alarm logic unit number is not in the controller preferred). I guess the multi-channel driver using AVT to send the LUN to the same controller, but as I said, I don't know if this is normal. Would be nice if someone can clarify this point. The Storage VMotion finished well and no disk problem appears.

  Thanks again for your time!

  NetApp's official response is that they are aware of the problem and it will be fixed in a future firmware version.

• Change of MSCS RDM disk offline after VMware Server or patching firmware finishing or multi path IOPS / s - SQL MSCS RDM disk

  Hello

  Yesterday, we installed a fifth ESXi host at our development center and along that we also had a window of maintenance for other hosts.

  We made:

  • HP Proliant HP Service Pack upgrade to 2014.06.0_784915_001. We have HP BL460c Gen8 servers. The old PSP performed from September 2013
  • Installed patches for ESXi 5.1 U1, the latest 10-15 patches since February. Do not install 5.1 U2.
  • Upgrade VMware Tools on virtual machines.
  • Changed multi path IOPS / s for HP 3PAR from 100 to 1. (esxcli storage nmp ATAS add s "VMW_SATP_ALUA' Pei"VMW_PSP_RR"- IOPS O / s = 1 - c"tpgs_on"v '3PARdata' - M 'VV' EI 'HP 3PAR Custom iSCSI/FC/FCoE ALUA rule')

  After this interview little MSCS SQL cluster stopped working. It does not start because it cannot access the drive. I can see the drive in disk management, but they are all in an offline mode. Can't do anything about them, except a single disc. This one is online!

  Did anyone here have no idea what on Earth is wrong? If I does not tomorrow I have to list a species of Microsoft or VMware. I have not tried to remove/add the RDM-disc.

  Windows 2008 x 64 Enterprise

  SQL 2008 R2

  ESXi 5.1 U1 (latest patches)

  Thank you!

  Finally solved with assistance from HP support.

  Solved this KB KB VMware: change a LUN to use a policy different selection of the path (PSP)

  The "funny", it is that the cluster has been around for 4-5 years and works on EVA SAN and now 3PAR with RR as a policy path, and all of a sudden it stopped working. Perhaps a host profile political trigged in, I don't know. And I could also see and access 5/6 disks, why not 6? And was on the way from RR.

  I asked HP about this.

  Thank you for all your help.