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strange powerparh issue on AIX

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w5000

Technical User
Nov 24, 2010
223
PL
On the lspv output I noticed 4 of 8 hdiskpower devices without PVIDs - those PVIDs are now seen on plane EMC's hdisk devices. But then I check in "powermt display dev=all" I see all hdiskpower devices with complete number of paths (corresponding hdiskX devices). Also lsdev -Cc disk shows all hdiskpower and EMC's plane hdisks available. No changes were done on system side since several weeks so I am surprised what could happen..

Code:
# lspv|grep -v rootvg
hdisk2          none                                None
hdisk3          none                                None
hdisk4          none                                None
hdisk5          none                                None
hdisk6          none                                None
hdisk7          none                                None
hdisk8          00cb17c321ea8bc4                    appvg          active
hdisk9          00cb17c321ae63fe                    appvg          active
hdisk10         00cb17c321e166d0                    appvg          active
hdisk11         00cb17c321e44bab                    appvg          active
hdisk12         none                                None
hdisk13         none                                None
hdisk14         none                                None
hdisk15         none                                None
hdisk16         none                                None
hdisk17         none                                None
hdisk18         00cb17c321ea8bc4                    appvg          active
hdisk19         00cb17c321ae63fe                    appvg          active
hdisk20         00cb17c321e166d0                    appvg          active
hdisk21         00cb17c321e44bab                    appvg          active
hdiskpower0     00cb17c321e8aead                    appvg          active
hdiskpower1     00cb17c321ec5833                    appvg          active
hdiskpower2     00cb17c321afbb20                    appvg          active
hdiskpower3     00cb17c321e28009                    appvg          active
hdiskpower4     00cb17c321e57632                    appvg          active
hdiskpower5     00cb17c321e7e965                    appvg          active
hdiskpower6     none                                None
hdiskpower7     none                                None
hdiskpower8     none                                None
hdiskpower9     none                                None

# lsdev -Cc disk
hdisk0      Available 00-08-00 SAS Disk Drive
hdisk1      Available 00-08-00 SAS Disk Drive
hdisk2      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk3      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk4      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk5      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk6      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk7      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk8      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk9      Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk10     Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk11     Available 07-01-02 EMC Symmetrix FCP VRAID
hdisk12     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk13     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk14     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk15     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk16     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk17     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk18     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk19     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk20     Available 04-01-02 EMC Symmetrix FCP VRAID
hdisk21     Available 04-01-02 EMC Symmetrix FCP VRAID
hdiskpower0 Available 04-01-02 PowerPath Device
hdiskpower1 Available 04-01-02 PowerPath Device
hdiskpower2 Available 04-01-02 PowerPath Device
hdiskpower3 Available 04-01-02 PowerPath Device
hdiskpower4 Available 04-01-02 PowerPath Device
hdiskpower5 Available 04-01-02 PowerPath Device
hdiskpower6 Available 04-01-02 PowerPath Device
hdiskpower7 Available 04-01-02 PowerPath Device
hdiskpower8 Available 04-01-02 PowerPath Device
hdiskpower9 Available 04-01-02 PowerPath Device


# powermt display dev=all | grep -p power[6,7,8,9]
Pseudo name=hdiskpower6
Symmetrix ID=000211221213
Logical device ID=091A
state=alive; policy=SymmOpt; priority=0; queued-IOs=0
==============================================================================
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---
###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors
==============================================================================
   0 fscsi1                    hdisk18   FA 11gA   active  alive      0      0
   1 fscsi3                    hdisk8    FA  7gA   active  alive      0      0

Pseudo name=hdiskpower7
Symmetrix ID=000211221213
Logical device ID=091B
state=alive; policy=SymmOpt; priority=0; queued-IOs=0
==============================================================================
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---
###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors
==============================================================================
   0 fscsi1                    hdisk19   FA 11gA   active  alive      0      0
   1 fscsi3                    hdisk9    FA  7gA   active  alive      0      0

Pseudo name=hdiskpower8
Symmetrix ID=000211221213
Logical device ID=091C
state=alive; policy=SymmOpt; priority=0; queued-IOs=0
==============================================================================
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---
###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors
==============================================================================
   0 fscsi1                    hdisk20   FA 11gA   active  alive      0      0
   1 fscsi3                    hdisk10   FA  7gA   active  alive      0      0

Pseudo name=hdiskpower9
Symmetrix ID=000211221213
Logical device ID=091D
state=alive; policy=SymmOpt; priority=0; queued-IOs=0
==============================================================================
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---
###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors
==============================================================================
   0 fscsi1                    hdisk21   FA 11gA   active  alive      0      0
   1 fscsi3                    hdisk11   FA  7gA   active  alive      0      0


Anyone has an idea what could happen and how to fix it online (service can't be stopped right now)?

The system is AIX 5.3 TL11 SP4
EMC ODM and Powerpath 5.3



 
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