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10 Posts
0
42382
May 25th, 2013 15:00
Having trouble getting the correct ESXi 5.1 path selection policy for Compellent LUNs
These are FCoE connections to a Compellent Array. I actually was looking as expected on some new ESXi 5.1 Hosts. I changed the default satp setting "esxcli storage nmp satp set --default-psp VMW_PSP_RR --satp VMW_SATP_DEFAULT_AA". The LUNs showed 2 paths, Storage Array Type showed VMW_SATP_DEFAULT_AA, and path selection was set to Round Robin.
I ended up rebuilding my Hosts with ESXi 5.1 Update 1 and made the same change but now the LUNs show as VMW_SATP_LOCAL and Fixed and I can only see one path? I don't understand why it is reacting differently now. Does anyone have any suggestions?
~ # esxcli storage nmp satp list
Name Default PSP Description
------------------- ------------- ------------------------------------------
VMW_SATP_MSA VMW_PSP_MRU Placeholder (plugin not loaded)
VMW_SATP_ALUA VMW_PSP_MRU Placeholder (plugin not loaded)
VMW_SATP_DEFAULT_AP VMW_PSP_MRU Placeholder (plugin not loaded)
VMW_SATP_SVC VMW_PSP_FIXED Placeholder (plugin not loaded)
VMW_SATP_EQL VMW_PSP_FIXED 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_ALUA_CX VMW_PSP_RR Placeholder (plugin not loaded)
VMW_SATP_SYMM VMW_PSP_RR Placeholder (plugin not loaded)
VMW_SATP_CX VMW_PSP_MRU Placeholder (plugin not loaded)
VMW_SATP_LSI VMW_PSP_MRU Placeholder (plugin not loaded)
VMW_SATP_DEFAULT_AA VMW_PSP_RR Supports non-specific active/active arrays
VMW_SATP_LOCAL VMW_PSP_FIXED Supports direct attached devices
bproteau
10 Posts
1
May 30th, 2013 09:00
Thanks for the reply. I figured out the problem. I needed to add an FCoE rule esxcli storage nmp satp rule add --transport fcoe --satp VMW_SATP_DEFAULT_AA --description "Fibre Channel over Ethernet Devices" I neglected to make note that I did that on the first build and completely forgot. Once I added this the existing an new LUNs all show the expected storage array type and path selection.
hallidayr
48 Posts
0
May 27th, 2013 12:00
Not sure WHY that would've happened but do you have any luck if you run
esxcli storage nmp satp set --default-psp VMW_PSP_RR --satp VMW_SATP_LOCAL