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тАО03-10-2003 08:34 AM
тАО03-10-2003 08:34 AM
Prevent raid 5 on AutoRaid
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тАО03-10-2003 08:42 AM
тАО03-10-2003 08:42 AM
Re: Prevent raid 5 on AutoRaid
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тАО03-10-2003 08:42 AM
тАО03-10-2003 08:42 AM
Re: Prevent raid 5 on AutoRaid
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тАО03-10-2003 08:48 AM
тАО03-10-2003 08:48 AM
Re: Prevent raid 5 on AutoRaid
# arraydsp -a
and look at the section "Disk space Usage" to calculate your usage.
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тАО03-10-2003 12:17 PM
тАО03-10-2003 12:17 PM
Re: Prevent raid 5 on AutoRaid
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тАО03-10-2003 01:45 PM
тАО03-10-2003 01:45 PM
Re: Prevent raid 5 on AutoRaid
# arraydsp -m 03100800 03101500
and take a look at "Relocate Block", that number indicates how much data is moved between raid0/1 and raid5, obviously yours would be zero. It's one way to gauge the array performance. If that value is big, performance goes down. Man pages of arraydsp will explain more (I think).
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тАО03-11-2003 12:05 AM
тАО03-11-2003 12:05 AM
Re: Prevent raid 5 on AutoRaid
would you please attach 'arraydsp -a' and 'logprint' outputs zipped to your next reply?
Eugeny
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тАО03-11-2003 11:35 AM
тАО03-11-2003 11:35 AM
Re: Prevent raid 5 on AutoRaid
...that's another problem that I just finished talking with HP Support about. Our ARMServer needs patching and our AutoRaid firmware needs updating to get logprint and arraydsp to function properly. I'm getting to the point where I've almost forgotten the original problem. <:|
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тАО03-11-2003 12:17 PM
тАО03-11-2003 12:17 PM
Re: Prevent raid 5 on AutoRaid
You know it's useless to do perfomance troubleshooting on 'non-optimal' system.
Good luck!
Eugeny
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тАО03-15-2003 03:41 PM
тАО03-15-2003 03:41 PM
Re: Prevent raid 5 on AutoRaid
HP18, and these settings, can make a dramatic difference. Watch your application performance for a while, if it doesn???t get any better then consider RAID 1+0. I???ve also seen additional write cache help, you might consider that also.
If you reply with the VA model, and the number and size of the disks, I can compute the magic capacity for the RGs ??? that is the LUN capacity at which the RG will be RAID 1+0 only. It???s not exactly 50% of anything???.