topic Re: DL320s and P800 poor performance in Disk Enclosures

DL320s and P800 poor performance

eltorito — Mon, 07 Dec 2009 17:46:50 GMT

Dear Gurus,

I have a NAS DL320s and a P800, before I had installed a Smart Array P400 and the performance on Raid 5, Raid 1 was ok. We attached an eclosure five days ago, and changed the Smart Array P400 to P800.
Now we have poor performance when write to HardDisk (so poor performance).

What parameters I need to check?
I was trying to enable cache write (by OS or ACU line) but I could not do it.

If someone can help me.

Thanks

Re: DL320s and P800 poor performance

Rob Leadbeater — Mon, 07 Dec 2009 18:56:23 GMT

Hi,

Have you installed the BBWC option ?
You need that to enable the write cache.

Cheers,

Rob

Re: DL320s and P800 poor performance

eltorito — Mon, 07 Dec 2009 19:36:23 GMT

I dont know if the dl320s has installed the BBWC.

HP installed the new Smart Array P800.

Is there a command to verify this?

Thanks!

Re: DL320s and P800 poor performance

eltorito — Mon, 07 Dec 2009 19:59:41 GMT

Dear,

Output:

=> controller slot=2 show config detail

Smart Array P800 in Slot 2
Bus Interface: PCI
Slot: 2
Serial Number: P98690D9SU40KI
Cache Serial Number: PA82B0A9STZ29U
RAID 6 (ADG) Status: Enabled
RAID 6 (ADG) Enabler Status: Enabled
Controller Status: OK
Chassis Slot:
Hardware Revision: Rev D
Firmware Version: 7.08
Rebuild Priority: Medium
Expand Priority: Low
Surface Scan Delay: 15 sec
Cache Board Present: True
Cache Status: ATTR_VALUE_CACHE_STATUS_PERMANENTLY_DISABLED
Accelerator Ratio: 100% Read / 0% Write
Total Cache Size: 512 MB
Battery Pack Count: 1
Battery Status: OK

Thanks!