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Old 01-05-2008, 06:01 AM
gprimerib
 
Posts: n/a
Default multipathing EMC Symm disk: How to setup?

Hey gang,

I have new EMC disk presented to my 4.3.3 ML 11 beast, each device is
visible to 2 HBAs for redundancy. Can someone point me in the right
direction to show how multipathing is handled within AIX/LVM? Right
now I see each Symm device as 2 disks:

/dev/rhdisk31 :EMC :SYMMETRIX :5670 :38000000 :8838720
/dev/rhdisk32 :EMC :SYMMETRIX :5670 :38001000 :8838720
/dev/rhdisk49 :EMC :SYMMETRIX :5670 :38002000 :8838720
/dev/rhdisk50 :EMC :SYMMETRIX :5670 :38003000 :8838720
<snip>
/dev/rhdisk159 :EMC :SYMMETRIX :5670 :38000000 :8838720
/dev/rhdisk160 :EMC :SYMMETRIX :5670 :38001000 :8838720
/dev/rhdisk161 :EMC :SYMMETRIX :5670 :38002000 :8838720
/dev/rhdisk162 :EMC :SYMMETRIX :5670 :38003000 :8838720

Doh.

Thanks in advance for any assistance. I've inherited a couple of AIX
boxes and my company is too cheap to increase headcount. *SIGH*
Daryl

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