number of paths LUN CF by cluster

Similar Questions

• 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}}

• HBA details with number of paths

  Hello

  Can any one help script powerCLI for HBA information with number of paths and all host LUN ESXi please...?

  Take a look at 1. Re: see the number of paths per LUN by host  

• View the number of paths and the political path for each data store

  Hi all

  Seem to be stuck on this one. and all that seems to be able to find through topis and scripts for the air path setting. All I have to do is list each data store to its policy of access road and the number of path for the data store on the host computer.

  I'm gussiing it uses the get-vmhoststorage cmdlet?

  Any help much appriciated.

  Phil

  Try something like this

  Get-VMHost | %{
       $esxImpl = $_
       $_ | Get-ScsiLun | where {$_.LunType -eq "Disk"} | %{
            $_ | Select @{N="HostName";E={$esxImpl.Name}},
            @{N="Path";E={$_.CanonicalName}},
            @{N="Policy";E={$_.MultiPathPolicy}},
            @{N="Number";E={($_ | Get-ScsiLunPath).Count}}
       }
  }
  

  ____________

  Blog: LucD notes

  Twitter: lucd22

• 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.

• Best practices / number of iSCSI LUNS attached to 4 knots.

  Hi Admins,

  I have a 5 node running version vSphere cluster 5.

  Recently, we have a couple of big LUNs, 2-3 to a

  Had some performance issues and VMware support said that we should use smaller LUNS.

  Now to my question:

  Is it OK to have warehouses of 20 data attached to a cluster? Despite the overload...

  Consider using 800 GB data warehouses. (max 15 mV in each data store)

  What are you saying?

  BR

  Tyler

  Is it OK to have warehouses of 20 data attached to a cluster?

  It is very good. The rates of configuration document lists 256 as the max, and you are not anywhere near this number.

• LUN is hidden - cluster

  Hello

  I'm doing a cluster and when LUN is added to a virtual computer when I stopped it - I can't add another node.

  I use ESX 3.5.0 servers build 123630 and VMware VirtualCenter 2.5.0 build 147633.

  Before I updated the servers and VirtualCenter, I didn't have this problem.

  You can do this on the server vCenter itself, as opposed to physical esx hosts.  I have a workaround, but it's a bit kludgy.  You can open two vi client sessions.  Change the settings of the virtual machine on vm1 and the settings of the virtual machine with the other 2.  Since you have not yet saved your settings, the two virtual machines will see the available LUNS.  When you have added the LUNS on vm1.  Apply and then ok and save on vm2 vm1 has finished the configuration.

  -KjB

  VMware vExpert

• List/number of nodes in a CCR cluster

  Hello
  
  Perhaps these questions already been asked and answered - is there a way to know how many knots (or list of names of the nodes) in a RAC cluster? I found the command SRVCTL who can tell which instance of a RAC database is running on node/server but I just want to know the names including the RAC cluster.
  
  Concerning

  Please use olsnodes command from any node in the cluster. Lists all the nodes of the RAC cluster.

• reduction in the number of paths in shape while maintaining the visual aspect?

  Hi all

  Here, I have created an interesting shape by the use of an art brush applied to the outline of a polygon. I expanded his appearance to make it more editable, but unfortunately, it has a great many paths and load very slowly. [Both images show you how illustrator plotted he [deuxieme found only].

  http://I35.Photobucket.com/albums/D188/OphidianShenzi/complicatedpaths.jpg

  http://I35.Photobucket.com/albums/D188/OphidianShenzi/complicatedpaths-outlineonly.jpg

  Here's my question;

  How can I keep the Visual complexity of this form but remove redundant paths as much below as possible? I'm tired of pretty things that crash my illustrator

  I considered the pixelation and followed live there again, but I think I can lose some details.

  What would you suggest?

  Thank you kindly

  

• Get the scsi for a data store information if the data store is known

  Hello

  I'm looking for a way to get the information of scsci for a data store if the name of the data store is known. In perl/powershell, this is not a big problem, but how to do this using the Orchestrator. It seems that some information is not available/accessible in vCO, as information volume.extent (object VcHostFileSystemVolume).

  For an example on how to do who, in powershell, see

  http://vwiki.co.UK/Datastore_to_LUN_Mapping_%28PowerCLI%29

  No idea on how to do the same with the Orchestrator.

  Concerning

  Thomas

  Hello

  Onyx would not help in this case. After thinking a bit, I found the solution. I looks like:

  for each {(var Mon in wfHostObject.configManager.storageSystem.storageDeviceInfo.multipathInfo.lun)

  System.Debug ("number of paths:" + lun.path.length);

  for each {(var path in lun.path)

  If (path.state == 'active') {}

  //

  Download the mountinfo

  //

  System.Debug ("mountinfo length:" + wfHostObject.configManager.storageSystem.fileSystemVolumeInfo.mountInfo.length);

  for each {(Mount var in wfHostObject.configManager.storageSystem.fileSystemVolumeInfo.mountInfo)

  If (mount.volume.hasOwnProperty ("extent")) {}

  for each {(measure of var in mount.volume.extent)

  var tmp = extent.diskName.split(/\./);

  var regExp = new RegExp(tmp[1],'gi');

  If (lun.id.match (regExp)) {}

  System.Debug ("mount.type:" + mount.volume.type);

  System.Debug ("mount.name:" + mount.volume.name);

  System.Debug ("extent.diskName:" + extent.diskName);

  }

  }

  }

  }

  }

  }

  }

• count the number of targets, devices and paths by hba for each host with powercli 5.5

  Hi all

  I'm writing this Question again in the community, was not able to found the answer I was looking for in the nets:

  https://communities.VMware.com/thread/516226?start=0 & tstart = 0

  https://communities.VMware.com/thread/293531

  I went through the scripts provided in the community, but seems that t not work on powercli 5.5.

  ///

  # The target account, devices and paths for each host

  Get-Cluster $cluster | Get-VMHost | Sort-Object-property name. {ForEach-Object

  $VMHost = $_

  $VMHost | Get-VMHostHba-type FibreChannel | Sort-Object-property device | {ForEach-Object

  $VMHostHba = $_

  $ScsiLun = $VMHostHba | Get-ScsiLun

  If {($ScsiLun)

  $ScsiLunPath = $ScsiLun | Get-ScsiLunPath | `

  Where-Object {$_.} Name - like "$($VMHostHba.Device) *"} ".

  $Targets = ($ScsiLunPath |) »

  Group-object - property SanID | Measure - Object). County

  $Devices = ($ScsiLun |) Measure - Object). County

  $Paths = ($ScsiLunPath |) Measure - Object). County

  }

  Else {}

  $Targets = 0

  $Devices = 0

  $Paths = 0

  }

  $Report = "" | Select-Object - property VMHost, HBA, target devices, paths

  $Report.VMHost = $VMHost.Name

  $Report.HBA = $VMHostHba.Device

  $Report.Targets = $Targets

  $Report.Devices = $Devices

  $Report.Paths = $Paths

  $Report

  }

  }

  ///

  I went through the script LucD posted below: but it's not exactly what I'm looking for.

  LucD : can you please change the same for me please.   to count the number of paths per hba for each host with powercli 5.5, devices and targets.

  //

  $esx = get-VMHost < host name >

  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

  }

  //

  I'll be grateful for any help.

  Tarun Gupta

  Try something like this

  {foreach ($esx in Get-VMHost)

  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" - ErrorAction SilentlyContinue

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

  $props [ordered] = @ {}

  VMHost = $esx.name

  HBA = $hba. Name

  Target = $target. County

  Device = $luns. County

  Path = $nrPaths

  }

  New-object PSObject-property $props

  }

  }

• Political multi-channel Fixed and enter preffered paths balance for a set of RDM Lun

  Hi all

  I was hoping that someone with some experience PowerCLI might help me with the following problem.

  Short version:

  I need to adapt this script http://vmjunkie.wordpress.com/2009/01/29/balancing-lun-paths-on-your-esx-hosts-with-powershell/ to accept the entry of a canonical name text file...

  Long version:

  We have a number of LUNS of RDM used by Microsoft the Failover Clusters, in accordance with the recommendation from the storage provider (Dell), we need to define all teas LUN to have a multi-path of FIXED policy and want to balance these on both paths.

  I can get the canonical name for each LUN RDM using this script;

  Get-VM-Location"Cluster Name" | Get-HardDisk -DiskType "RawPhysical","RawVirtual"| SelectParent,Name,DiskType,ScsiCanonicalName

  (Of http://www.definit.co.uk/2013/03/powercli-script-to-set-rdm-luns-to-perennially-reserved-fixes-slow-boot-of-esxi-5-1-with-mscs-rdms/#more-1526( )

  I then manually identify the LUNS that have to be changed since the text output.  So, basically, I have a text file containing the canonical each of the RDM LUN name I need to change to fixed.

  LUNS.txt

  NAA.6000d31000331e0000000000000000c0

  NAA.6000d31000331e0000000000000000c1

  NAA.6000d31000331e0000000000000000c2

  NAA.6000d31000331e0000000000000000c3

  NAA.6000d31000331e0000000000000000c4

  NAA.6000d31000331e0000000000000000c5

  I can't run this command to set the Fixed multichannel strategy because I need the PreferredPath variable.

  Get-vmhost 'host name ' | Get-scsilun 'naa.6000d31000331e0000000000000000c0 ' | game-scsilun - multipathpolicy 'Fixed '.

  
  

  "If the MultipathPolicy parameter is set to 'Fixed', you must specify the parameter of PreferredPath."

  I can then get the paths by using this command:

  Get-vmhost 'host name ' | Get-scsilun 'naa.6000d31000331e0000000000000000c0 ' | Get-scsilunpath

  Favorite SanID state name
  ----       -----                                    -----      ---------
  FC.2000... False Active 50:00:D3:10:00:33:1e:19
  FC.2000... False Active 50:00:D3:10:00:33:1e:1 has

  Basically, I need to adapt this script (from here http://vmjunkie.wordpress.com/2009/01/29/balancing-lun-paths-on-your-esx-hosts-with-powershell/) at the entrance to a text file of canonical names.

  # Cluster-wide LUN Path Load Balancing Script

  # Written by Justin Emerson, http://vmjunkie.wordpress.com

  # Idea originally from a PERL script I saw here:

  #    http://www.yellow-bricks.com/2008/04/01/load-balancing-activeactive-sans/

  # This script requires the VI Toolkit version 1.5

  # NOTE: This script assumes that every LUN has the same number of paths.

  #       If you have multiple storage arrays, and they have different numbers of paths,

  #       I make no guarentees that this will work!

  # If you have an improvement to this script, please feel free to leave a comment on my blog!

  Write-Host"This script will modify the policy of all your shared LUNs on all ESX Servers"-ForegroundColorCyan

  Write-Host"in a Cluster to Fixed and select a preferred path in a round-robin fashion."-ForegroundColorCyan

  if ($args.Length -eq0) {$clusterName= Read-Host"Please enter the Cluster name"} else {$clusterName= $args[0]}

  $VMHosts= Get-Cluster$clusterName| Get-VMHost

  # Run through this loop for each host in the cluster

  foreach($VMHostin $VMHosts)

  {

      # Keep only disks of luntype "disk" to avoid any storageArrayController devices.

      # Filter to only objects where the ConsoleDeviceName starts with vml to avoid any DAS disks.

      # Note: I have tested both HP EVA and Xiotech storage and SAN LUNs always appear this way.

      # Please check if this is the same on your storage before running.

      $luns= $VMHost|get-scsilun-luntypedisk|

      where-object{$_.ConsoleDeviceName -like"/vmfs/devices/disks/vml*"}|Sort-ObjectCanonicalName

      $firstLUNPaths= Get-ScsiLunPath$luns[0]

      $numPaths= $firstLUNPaths.Length

      $count= 0

      foreach($lunin $luns)

      {

          if ($count-ge$numPaths) { $count= 0 }

          $paths= Get-ScsiLunPath-ScsiLun$lun

          $lun|Set-ScsiLun-MultipathPolicyFixed -PreferredPath$paths[$count]

          $count+= 1

          # Sleep for 30 seconds as I've heard some arrays dont like doing this too fast.

          Start-Sleep-Seconds30

      }

  }

  Any help would be greatly appreciated.

  See you soon,.

  Patrick

  Do you have something like this in mind?

  $esxName = "MyEsx" $lunFile = "./luns.txt"
  $lunNames = Get-Content $lunFile $VMHost = Get-VMHost -Name $esxName
  # Find the LUN with the least number of paths
  $leastLUNPaths = Get-ScsiLun -VmHost $VMHost -LunType disk | Sort-Object -Descending -Property {
    Get-ScsiLunPath -ScsiLun $_ | Measure-Object | Select -ExpandProperty Count} | Select -First 1 | Get-ScsiLunPath
  $numPaths = $leastLUNPaths.Length
  $count = 0 foreach ($lunName in $lunNames)
  {
    $lun = Get-ScsiLun $lunName -VmHost $VMHost  if ($count -ge $numPaths) { $count = 0 }
    $paths = Get-ScsiLunPath -ScsiLun $lun  $lun|Set-ScsiLun -MultipathPolicy Fixed -PreferredPath $paths[$count]
    $count += 1  # Sleep for 30 seconds as I've heard some arrays dont like doing this too fast.
    Start-Sleep -Seconds 30}
  

• Added a HBA &amp; LUN to one node of a cluster;   HBA LUN, but is LUN unavailable for a new VMFS datastore

  We have two servers ESXi V4 in a HA/DRS cluster, with each of them having a FC HBA and access to the same database unique.  The cluster is managed by vCenter 5.5.0

  I added a second FC HBA to one of these servers, and after reboot the HBA sees the LUN very well.  But when I go to add the new storage, there is none is available.

  I'm trying this via: vCenter-> select host-> configuration-> storage-> storage-> add StorageType = disk/Lun

  My plan was to have a virtual machine on a server, which would have access to the new data store for a backup repository.   I had the intention to have the virtual machine locked to this server and I didn't expect any HA migration etc.

  Now, I get the feeling that this asymmetry of storage in a cluster is not supported.  Any ideas?

  Thank you... Lyle

  > I added a second FC HBA to one of these servers...

  I guess you meant that you added another logic unit number! This LUN did not previously contain other data, i.e. a partition table for another system of file/partition type? In some cases, you may need to disable this 'old' front of partition tables to create a GUI data store. In other cases it can work when you use the vSphere Client and connect to the host directly to create the data store.

  André

• Fiber Channel - paths to a LUN

  Hi, can someone please confirm that vsphere document Config Max.

  What is the maximum paths for a single unit logic to an ESX4 host number?

  If that the case only one ESX host sees max 256 LUNS

  256 x 16 paths LUN = 4096 paths, although it also specify paths max for each host is 1024. So if I understand well 'Total paths on a host.

  would be the limiting factor, and we can say based on the amount of paths for each host that would limit the amount of LUNS he could see.

  Usually (in structure changed over with 2 HBA adapter for each host), the number of path for each logical unit number is 4.

  So 256 x 4 = 1024.

  You can use HBA to have more way more, but in this case, I think that the total number of LUNS (for each guest) will be smaller.

  André

• Reduce the number of iSCSI Multipathing in paths

  I'm experimenting with performance iSCSI on NAS. Currently I have 4 NICs on the host and 4 NICs on the NAS. That leaves me with 16 channels for iSCSI data store. I would like to disable multipathing so I find myself with 4 paths. I would try having NIC1 on the host go on the NAS NIC1 and NIC2 on the host then goes to NIC2 on the NAS, so on and so forth. Is this possible? I saw that I could disable paths but I did anyway to say which way goes to which nic so that I might finish with 4 paths all on the same network adapter. Any help would be appreciated.

  I found that if I broke to the top of each of the 4 NIC I used for iSCSI in different subnets traffic and then set the 4 network cards on the NAS in the same subnets I could get the number of paths down to 4. However with adapter for iSCSI for the VMware software there is no way to have more than 1 NIC of the flow value. Round Robin will use only 1 NETWORK with a value of debit card while I was stuck with the help of only 25% of the potential flow of the NAS for iSCSI traffic.