VMware: Configure Multipath Policy via PowerCLI

17 thoughts on “VMware: Configure Multipath Policy via PowerCLI”

1. Can also do this by using the vSphere Management Assistant before connecting SAN LUN’s to your vsphere host so all LUN’s are default presented with path policy RR:

   esxcli –server nmp satp setdefaultpsp –satp=”VMW_SATP_DEFAULT_AP” –psp=”VMW_PSP_RR”

   Also read this thread for setting iops for HP EVA array’s:

   http://vmug.nl/modules.php?name=Forums&file=viewtopic&t=4893

2. Great post, used this for my environmet

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4. Here is a faster one-liner:
   get-cluster “Cluster Name” | Get-VMHost | Get-ScsiLun -LunType disk | Where-Object {$_.MultipathPolicy -ne “RoundRobin”} | Set-ScsiLun -MultipathPolicy “RoundRobin”

5. Robert LeBlanc :

   Here is a faster one-liner:
   get-cluster “Cluster Name” | Get-VMHost | Get-ScsiLun -LunType disk | Where-Object {$_.MultipathPolicy -ne “RoundRobin”} | Set-ScsiLun -MultipathPolicy “RoundRobin”

   Thanks Robert!

6. Robert,

   Your faster one-liner worked for me, but only made the change for the first host in my cluster. The second host remained as it was with some paths as ‘fixed’. I’m fairly new to both PowerShell and PowerCLI, so any help would be appreciated.

   Thanks,
   Doug

7. Pingback: VMware iSCSI Multipath (set all PSPs) | SOS tech

8. Great information, helped in setting for 12 hosts each with 32 disks.

   I wanted to know if there is way to get the LUN nos with the canonical names.

   Thanks,
   Suhail.

9. The PSP for vSphere 5

   esxcli storage nmp satp set –default-psp VMW_PSP_RR –satp VMW_SATP_ALUA

10. Robert LeBlanc :

    Here is a faster one-liner:
    get-cluster “Cluster Name” | Get-VMHost | Get-ScsiLun -LunType disk | Where-Object {$_.MultipathPolicy -ne “RoundRobin”} | Set-ScsiLun -MultipathPolicy “RoundRobin”

    Just applied this one liner no issues works fine in vsphere 5.

11. My vCenter server having multiple virtual Data center and multiple cluster, so what is the single command to get detail of All DataStore Multi path policy

12. This is for vSphere 5.1

    $strHost = Get-VMHost
    connect-viserver $strHost
    $esxcli = $strHost | Get-EsxCLI
    $esxcli.storage.nmp.satp.set($null,”VMW_PSP_RR”,”VMW_SATP_ALUA”)
    $strHost | Get-ScsiLun -CanonicalName “naa.6001*” | Set-ScsiLun -Multipathpolicy “roundrobin”
    $esxcli.storage.nmp.device.list() | Where {$_.PathSelectionPolicy -eq “VMW_PSP_RR”} | %{$esxcli.storage.nmp.psp.roundrobin.deviceconfig.set($null,$true, $_.device, 1,”iops”,$null)}
    $esxcli.storage.nmp.device.list() | Where {$_.PathSelectionPolicy -eq “VMW_PSP_RR”} | %{$esxcli.storage.nmp.psp.roundrobin.deviceconfig.get($_.device)}

13. Thanks Brian!

14. Pingback: VMware iSCSI Multipath (set all PSPs) | SOSTech

15. The result is not completely visible with the comannd Get-VMhost ESXHOST | Get-ScsiLun -LunType disk

    How can I make the display completely for the ConsoleDeviceName and CanonicalName

    Thanks, Kroman

16. @Kroman
    Get-SCSILun -VMhost “ESXi host name” -LunType Disk | Select CanonicalName,CapacityGB,runtimename,MultipathPolicy

17. this really saved us A LOT OF time! thank you!!!!