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Write back Cache

iman_1
Advisor

Write back Cache

Dear All,

Is it possible to disbale nowriteback cache on the controller when the restore is currently happening ? Is this parameter dynamic ?

I am seeing drastic reduction in the performance of the restore of one of the disks due to which I would like to enable writeback cache.

Cheers,
Iman
4 REPLIES
iman_1
Advisor

Re: Write back Cache

The controller is HSD30 and OS is OpenVMS 6.2
Dave Laurier
Frequent Advisor

Re: Write back Cache

What about:

1. Connect to controller through the CLI
CLI SET
2. Restore

3. Connect to controller through the CLI
CLI SET
for all previous WRITEBACK enabled units that were disabled
iman_1
Advisor

Re: Write back Cache

Dave,

I have done that, but what I want to know is does the change to writeback caceh be performed while the restore is running ?

Cheers,
Iman
Wim Van den Wyngaert
Honored Contributor

Re: Write back Cache

Yes because the controller changes the value itself when battery gets bad.

Wim
Wim