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Re: Oracle 10g ASM Disk Group Question

From: hpuxrac <johnbhurley_at_sbcglobal.net>
Date: 25 Apr 2006 09:37:07 -0700
Message-ID: <1145983027.233447.105060@y43g2000cwc.googlegroups.com>


ASM doesn't know "what disks you really have".

When you add a new disk ( alter diskgroup asm command ) and point to a 50 gig LUN ASM think's it has a new disk.

Most of the benefit of adding 50 gig at a time to the ASM instance is the fact that you are doing it less often than if you were adding 2 or 5 or 10 gig at a time.

Each time you add storage and trigger an ASM rebalance the IO hit is probably considerable as ASM moves around extents to "what it thinks" is a new disk drive. Received on Tue Apr 25 2006 - 11:37:07 CDT

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