PSP for ESXi using NetApp Storage

[dap]

I am using ESXi 4.1. The storage is NetApp FC. I have enabled ALUA on the Initiator groups. The Storage Array Type is VMW_SATP_ALUA. The Path Selection is defaulting to Most Recently Used. What is the cmd to for ESXi4.1 to set the default path selection to Round Robin. Thanks

[lamw]

You will need to use esxcli utility from vCLI that should be installed on a Linux or Windows management host or using VMware's vMA appliance.

To set the default PSP, you'll use the following syntax:

esxcli --server <esx_or_esxi_host_ip_or_hostname> --username root nmp satp setdefaultpsp --psp VMW_PSP_RR --satp VMW_SATP_ALUA

To download the vCLI, take a look here http://www.vmware.com/support/developer/vcli/ which also includes documentation and examples.

=========================================================================

William Lam

VMware vExpert 2009,2010

VMware scripts and resources at:

Twitter: @lamw

Getting Started with the vMA (tips/tricks)

Getting Started with the vSphere SDK for Perl

VMware Code Central - Scripts/Sample code for Developers and Administrators

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If you find this information useful, please award points for "correct" or "helpful".

[chadwickking]

You could also do it by the vsphere client by the properties of the datastore under Configuration > Storage and clicking properties

See:

http://www.virtualizationbuster.com/?p=380

Obviously the command will do it across the board.

Cheers,

Chad King

VCP-410 | Server+

Twitter:

If you find this or any other answer useful please consider awarding points by marking the answer correct or helpful

[dap]

I keep getting the following error when I try to run save_session

'chcp' is not recognized as an internal or external command,

operable program or batch file.

Can't open c:\session: Permission denied at C:/Program Files (x86)/VMware/VMware

vSphere CLI/Perl/lib/HTTP/Cookies.pm line 409.

Can't open c:\session: Permission denied at C:/Program Files (x86)/VMware/VMware

vSphere CLI/Perl/lib/HTTP/Cookies.pm line 409.

END failed--call queue aborted.

[lamw]

Could you please pate the entire command you're running, it's hard me to tell what issue you're running into

=========================================================================

William Lam

VMware vExpert 2009,2010

VMware scripts and resources at:

Twitter: @lamw

Getting Started with the vMA (tips/tricks)

Getting Started with the vSphere SDK for Perl

VMware Code Central - Scripts/Sample code for Developers and Administrators

VMware Developer Community

If you find this information useful, please award points for "correct" or "helpful".

[dap]

I issued this command on a server that I installed vCLI on

C:\Program Files (x86)\VMware\VMware vSphere CLI\Perl\apps\session>save_session.

pl --savedessionfile c:\session --server esxserver --username root --password password

[chadwickking]

Were you able to get this sorted out?

Cheers,

Chad King

VCP-410 | Server+

Twitter: http://twitter.com/cwjking

If you find this or any other answer useful please consider awarding points by marking the answer correct or helpful

[dap]

I was able to issue the following command: esxcli --server <esx_or_esxi_host_ip_or_hostname> --username root nmp satp setdefaultpsp --psp VMW_PSP_RR --satp VMW_SATP_ALUA

It did not set the default psp to roundrobin. I ended up selecting the datastores and setting the psp manually.

[RParker]

You need to also do a list to see what's currently loaded, it will tell you if the policy is changed:

esxcli --server esxserver nmp satp list

Name Default PSP Description

-

---

-

---

-

---

VMW_SATP_SYMM VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_SVC VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_MSA VMW_PSP_MRU Placeholder (plugin not loaded)

VMW_SATP_LSI VMW_PSP_MRU Placeholder (plugin not loaded)

VMW_SATP_INV VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_EVA VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_EQL VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_DEFAULT_AP VMW_PSP_MRU Placeholder (plugin not loaded)

VMW_SATP_ALUA_CX VMW_PSP_FIXED_AP Placeholder (plugin not loaded)

VMW_SATP_CX VMW_PSP_MRU Supports EMC CX that do not use the ALUA protocol

VMW_SATP_ALUA VMW_PSP_RR Supports non-specific arrays that use the ALUA protocol

VMW_SATP_DEFAULT_AA VMW_PSP_RR Supports non-specific active/active arrays

VMW_SATP_LOCAL VMW_PSP_FIXED Supports direct attached devices

[dap]

Here is the output from a server where I ran the command "esxcli --server &lt;esx_or_esxi_host_ip_or_hostname&gt; --username root

nmp satp setdefaultpsp --psp VMW_PSP_RR --satp VMW_SATP_ALUA" ......It did not change the default psp to round robin

Name Default PSP Description

-

---

-

---

-

---

VMW_SATP_SYMM VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_SVC VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_MSA VMW_PSP_MRU Placeholder (plugin not loaded)

VMW_SATP_LSI VMW_PSP_MRU Placeholder (plugin not loaded)

VMW_SATP_INV VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_EVA VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_EQL VMW_PSP_FIXED Placeholder (plugin not loaded)

VMW_SATP_DEFAULT_AP VMW_PSP_MRU Placeholder (plugin not loaded)

VMW_SATP_ALUA_RR VMW_PSP_RR Placeholder (plugin not loaded)

VMW_SATP_ALUA_CX VMW_PSP_FIXED_AP Placeholder (plugin not loaded)

VMW_SATP_CX VMW_PSP_MRU Supports EMC CX that do not use the ALUA pr

otocol

VMW_SATP_ALUA VMW_PSP_MRU Supports non-specific arrays that use the A

LUA protocol

VMW_SATP_DEFAULT_AA VMW_PSP_FIXED Supports non-specific active/active arrays

VMW_SATP_LOCAL VMW_PSP_FIXED Supports direct attached devices

[RParker · Accepted solution]

Which means the policy in your case was changed to MRU, but not RR, so maybe you can run the command again, it didn't appear to set correctly.

esxcli --server --username root nmp satp setdefaultpsp --psp VMW_PSP_RR --satp VMW_SATP_DEFAULT_AA

[dap]

Thanks for your help. I ran the following command:

esxcli --server &lt;esx_or_esxi_host_ip_or_hostname&gt; --username root

nmp satp setdefaultpsp --psp VMW_PSP_RR --satp VMW_SATP_ALUA

I rebooted after I issued the command. Once the ESXi host came online all the datastores were using round robin.