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mpk11

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12 years ago

M

mpk11

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December 29th, 2014 18:00

Powerpath on solaris 10 with missing pseudo device names.

Hi all,

I got a two node oracle rac cluster, running on solaris 10 with power path Version 5.2 SP 2 (build 12)

Node2 got rebooted and 6 pseudo device names out of total 22 have been lost.

So after reboot, I can still see 16 emcpower... devices, emcpower0a through emcpower15a.

For the 6 in question, emcpower16 to emcpower21, I can see the LUN ID, device ID, path health etc by running "powermt display device=all".

I obtained the pseudo device names that should be set for these 6 LUNs by comparing them against node1's pseudo devices.

I tried several emcpadm commands, including exporting mappings from node1 to import them to node2 but none have worked so far.

Is there a way to assign a pseudo name for a device visible to server?

Thanks in advance.

Here is a snipped from powermt display dev=all. You can see LUN 86 is missing pseudo device name.

Pseudo name=emcpower15a

CLARiiON ID=APM00093600135 [pre_prod]

Logical device ID=600601602CC02000AE08CC1646A9DE11 [LUN 27]

state=alive; policy=CLAROpt; priority=0; queued-IOs=0

Owner: default=SP B, current=SP B       Array failover mode: 1

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

---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---

###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors

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

3074 pci@7c0/pci@0/pci@8/SUNW,qlc@0/fp@0,0 c2t5006016044600698d27s0 SP A0     active  alive      0      0

3074 pci@7c0/pci@0/pci@8/SUNW,qlc@0/fp@0,0 c2t5006016944600698d27s0 SP B1     active  alive      0      0

3072 pci@7c0/pci@0/pci@9/SUNW,qlc@0/fp@0,0 c3t5006016144600698d27s0 SP A1     active  alive      0      0

3072 pci@7c0/pci@0/pci@9/SUNW,qlc@0/fp@0,0 c3t5006016844600698d27s0 SP B0     active  alive      0      0

CLARiiON ID=APM00093600135 [pre_prod]

Logical device ID=600601602CC02000B23F84DF361DE111 [LUN 86]

state=alive; policy=CLAROpt; priority=0; queued-IOs=0

Owner: default=SP B, current=SP B       Array failover mode: 1

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

---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---

###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors

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

3074 pci@7c0/pci@0/pci@8/SUNW,qlc@0/fp@0,0 c2t5006016044600698d0s0 SP A0     active  alive      0      0

3074 pci@7c0/pci@0/pci@8/SUNW,qlc@0/fp@0,0 c2t5006016944600698d0s0 SP B1     active  alive      0      0

3072 pci@7c0/pci@0/pci@9/SUNW,qlc@0/fp@0,0 c3t5006016144600698d0s0 SP A1     active  alive      0      0

3072 pci@7c0/pci@0/pci@9/SUNW,qlc@0/fp@0,0 c3t5006016844600698d0s0 SP B0     active  alive      0      0