Disk Enclosures
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Re: Enable disk write cache, P400

 
Jonas Forsberg
Occasional Advisor

Re: Enable disk write cache, P400

Hi Rob.

Thanks for all the help.

The forced flag seams to suppress the warning text about loosing data, nothing else.
We now tried to enable the disk write cache with a BBWC attached to the P400 but we get the same result.

I think it├в s time to make a support case of this.

Cheers
Patrick Terlisten
Honored Contributor

Re: Enable disk write cache, P400

Hello,

what about some points. ;)

Best regards,
Patrick
Best regards,
Patrick
nomadsole
Advisor

Re: Enable disk write cache, P400

I had the same problem with P600 / BBWC. Besides I couldn't enable the write cache of the physical drives, I also found that the write back cache feature was disabled for logical drives in Windows. And I coundn't enable it as well. I think this is attributed to the fact that the write caches on the physical drives were disabled. I am going to log a support case next Monday.
nomadsole
Advisor

Re: Enable disk write cache, P400

HP advised me SA-P600 does not support write cache on SATA drives. If you want write cache, you must use SAS. I suspect they technically disable the feature for sales reason. There is no point for a battery backed controller with battery backed write cache which has write cache disabled on the drives. The write performance really sucks compared with a SAS system.