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Archive

Posts Tagged ‘Multipath’

VMware: Install Dell Equallogic Multipathing Extension (PSP) for vSphere 5.1 with PowerCLI

October 23rd, 2012 3 comments

Last week I’ve installed some Dell hosts with VMware vSphere 5.1 and used Dell Eq. PS6000 storage. To configure the connection between host and storage optimal I’ve used the Dell Equallogic Multipathing Extension witch is supported for vSphere 5.x

The SATP VMW_SATP_EQL is a VMware default one for EqualLogic arrays. And of course the PSP is DELL_PSP_EQL_ROUTED. The ‘ROUTED’ part refers ot DELL’s MEM being able to intelligently route I/O requests to the array path best suited to handle the request, to configure this with PowerCLI I’ve used the following code:

Get-VMHost HOST | Install-VMHostPatch -HostPath "/vmfs/volumes/VMFS-009-SSD/dell-eql-mem-esx5-1.1.1.270268/metadata.zip"

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Result:

The DELL_PSP_EQL_ROUTED is configured automatically and the path selection is selected

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Source and more information: VMware , VMware, Dell

sanderdaems

Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has over 15 years experience in IT, primary focus: virtualization and modern worksplace.

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VMware: Configure Multipath Policy via PowerCLI

May 25th, 2011 14 comments

Tonight I need to configure the Multipath Policy from “Most Recently Used” to “Round Robin (VMware) on our vSphere 4.1 and HP EVA6400 environment. After reading “Configuration best practices for HP StorageWorks Enterprise Virtual Array (EVA) family and VMware vSphere 4” I decided to change the path status

To check the status of the Multipath Policy you can run the following PowerCLI script:

Per host:

Get-VMhost ESXHOST | Get-ScsiLun -LunType disk

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Per Cluster:

Get-Cluster CLUSTERNAME| Get-VMHost | Get-ScsiLun -LunType disk

 

To change the Multipath Policy you can run the following command:

Per Host:

Get-VMHost ESXHOST | Get-ScsiLun -CanonicalName "naa.6005*" | Set-ScsiLun -MultipathPolicy "roundrobin"

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Result in vCenter:

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sanderdaems

Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has over 15 years experience in IT, primary focus: virtualization and modern worksplace.

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VMware: Multipathing Status: Patrial/No Redundancy

February 11th, 2011 4 comments

Couple of weeks ago I asked on Twitter “Can anyone explain this #VMware storage view? MP status: Partial/No Redundancy.. Same cluster, same Dell Eql. SAN” .. now I was reading the release notes of vSphere 4.1 update 1 and there’s the fix…

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Multipathing status for datastores that have fully redundant paths might be reported as having Partial/No Redundancy:

In the Storage View tab of vSphere Client, under certain conditions, volumes that are reported as “Partial/No Redundancy” actually have fully redundant paths. This type of misreporting occurs on iSCSI volumes with hardware initiators. VMware support called this a display bug

Cool, this issue is solved in vSphere 4.1 update 1

sanderdaems

Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has over 15 years experience in IT, primary focus: virtualization and modern worksplace.

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