Mpxio performance on Hitachi 9985

From: Plassart, Raymond (raymond.plassart@apx-synstar.fr)
Date: Wed Sep 12 2007 - 04:07:14 EDT

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Hello,

I have performance problem on Hitachi 9985ST connected on Solaris 9
machines, this storage is configured Raid 7+1,

We noticed poor performance on some Oracle batch (2 times slower than a
Storedge 3510)

First idea is to change load balancing method and put
load-balance=logical-block in scsi_vhci.conf as indicated in Sun ocument
ID 76505 and 76505..

But i try many syntax, in this file and load-balancing method is always
round-robin (in /var/adm/messages)

Have you a sample of /kernel/drv/scsi_vhci.conf with HDS 9985ST and
OPENV lun ?

Any other idea

Thanks

Raymond
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