Max Waterman wrote:
Jeff V. Merkey wrote:
Max Waterman wrote:
One further question. I get these messages 'in' dmesg :
sda: asking for cache data failed
sda: assuming drive cache: write through
How can I force it to be 'write back'?
Forcing write back is a very bad idea unless you have a battery
backed up RAID controller.
We do.
In any case, I wonder what the consequences of assuming 'write
through' when the array is configured as 'write back'? Is it just
different settings for different caches?
It is. This is something that should be configured in a RAID
controller. OS should always be write through.
Jeff
Max.
Jeff
Max.
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