Re: To active all the multipaths, HPUX 11.31 with HP P6000 virtual Storage (189 Views)
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Advisor
Abhzi
Posts: 26
Registered: ‎08-06-2012
Message 1 of 3 (249 Views)
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To active all the multipaths, HPUX 11.31 with HP P6000 virtual Storage

Hello All,

 

While going through the lun_map outputs I found , 4 out of 8 paths are on stand by for a lun. Is it possible to activate all the paths and advisable? How the performance will be? We are using HP P6000 virtual Storage.

 

Please advise.

 

bash-4.2# scsimgr lun_map -D /dev/rdisk/disk39

        LUN PATH INFORMATION FOR LUN : /dev/rdisk/disk39

Total number of LUN paths     = 8 World Wide Identifier(WWID)    = 0x600143801259bf5400004000033e0000

LUN path : lunpath30 Class                         = lunpath Instance                      = 30 Hardware path                 = 0/0/0/5/0/0/0.0x50014380113838cc.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = ACTIVE Last Open or Close state      = ACTIVE

LUN path : lunpath31 Class                         = lunpath Instance                      = 31 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838cf.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = ACTIVE Last Open or Close state      = ACTIVE

LUN path : lunpath32 Class                         = lunpath Instance                      = 32 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838c9.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = STANDBY Last Open or Close state      = STANDBY

LUN path : lunpath36 Class                         = lunpath Instance                      = 36 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838cb.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = STANDBY Last Open or Close state      = STANDBY

LUN path : lunpath37 Class                         = lunpath Instance                      = 37 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838cd.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = ACTIVE Last Open or Close state      = ACTIVE

LUN path : lunpath38 Class                         = lunpath Instance                      = 38 Hardware path                 = 0/0/0/5/0/0/0.0x50014380113838c8.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = STANDBY Last Open or Close state      = STANDBY

LUN path : lunpath50 Class                         = lunpath Instance                      = 50 Hardware path                 = 0/0/0/5/0/0/0.0x50014380113838ca.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = STANDBY Last Open or Close state      = STANDBY

LUN path : lunpath60 Class                         = lunpath Instance                      = 60 Hardware path                 = 0/0/0/5/0/0/0.0x50014380113838ce.0x4009000000000000 SCSI transport protocol       = fibre_channel State                         = ACTIVE Last Open or Close state      = ACTIVE

 

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

bash-4.2# ioscan -kfnNC lunpath | grep -i disk39
lunpath  38  0/0/0/5/0/0/0.0x50014380113838c8.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39
lunpath  50  0/0/0/5/0/0/0.0x50014380113838ca.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39
lunpath  30  0/0/0/5/0/0/0.0x50014380113838cc.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39
lunpath  60  0/0/0/5/0/0/0.0x50014380113838ce.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39
lunpath  32  0/0/0/5/0/0/1.0x50014380113838c9.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39
lunpath  36  0/0/0/5/0/0/1.0x50014380113838cb.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39
lunpath  37  0/0/0/5/0/0/1.0x50014380113838cd.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39
lunpath  31  0/0/0/5/0/0/1.0x50014380113838cf.0x4009000000000000  eslpt   CLAIMED     LUN_PATH     LUN path for disk39

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Acclaimed Contributor
Torsten.
Posts: 23,097
Registered: ‎10-02-2001
Message 2 of 3 (234 Views)

Re: To active all the multipaths, HPUX 11.31 with HP P6000 virtual Storage

This is 100% OK, because the P6000 (EVA) works with ALUA, so only the owner controller works with a certain LUN. The server is aware of this fact and handles the other controller as standby for this certain LUN.


Hope this helps!
Regards
Torsten.

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Advisor
Abhzi
Posts: 26
Registered: ‎08-06-2012
Message 3 of 3 (189 Views)

Re: To active all the multipaths, HPUX 11.31 with HP P6000 virtual Storage

Thanks Torston. I apologize for delay in my reply.

 

For the DRD disk, it is showing 7 paths instead of eight and also state is unopen. Is it because I have kep my DRD deactivated or there any other reason for that?

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

root# scsimgr lun_map -D /dev/rdisk/disk98

        LUN PATH INFORMATION FOR LUN : /dev/rdisk/disk98

Total number of LUN paths     = 7 World Wide Identifier(WWID)    = 0x600143801259bf540000400003440000

LUN path : lunpath71 Class                         = lunpath Instance                      = 71 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838cf.0x400a000000000000 SCSI transport protocol       = fibre_channel State                         = UNOPEN Last Open or Close state      = ACTIVE

LUN path : lunpath83 Class                         = lunpath Instance                      = 83 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838cd.0x400a000000000000 SCSI transport protocol       = fibre_channel State                         = UNOPEN Last Open or Close state      = ACTIVE

LUN path : lunpath93 Class                         = lunpath Instance                      = 93 Hardware path                 = 0/0/0/5/0/0/0.0x50014380113838ce.0x400a000000000000 SCSI transport protocol       = fibre_channel State                         = UNOPEN Last Open or Close state      = ACTIVE

LUN path : lunpath94 Class                         = lunpath Instance                      = 94 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838cb.0x400a000000000000 SCSI transport protocol       = fibre_channel State                         = UNOPEN Last Open or Close state      = STANDBY

LUN path : lunpath95 Class                         = lunpath Instance                      = 95 Hardware path                 = 0/0/0/5/0/0/1.0x50014380113838c9.0x400a000000000000 SCSI transport protocol       = fibre_channel State                         = UNOPEN Last Open or Close state      = STANDBY

LUN path : lunpath96 Class                         = lunpath Instance                      = 96 Hardware path                 = 0/0/0/5/0/0/0.0x50014380113838c8.0x400a000000000000 SCSI transport protocol       = fibre_channel State                         = UNOPEN Last Open or Close state      = STANDBY

LUN path : lunpath97 Class                         = lunpath Instance                      = 97 Hardware path                 = 0/0/0/5/0/0/0.0x50014380113838ca.0x400a000000000000 SCSI transport protocol       = fibre_channel State                         = UNOPEN Last Open or Close state      = STANDBY

 

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