Robert Milkowski schrieb:
Hello UNIX,
Monday, June 19, 2006, 10:02:03 AM, you wrote:
Ua> Simple question: is it safe to enable the disk write cache when using ZFS?
As ZFS should send proper ioctl to flush cache after each transaction
group it should be safe.
Actually if you give ZFS whole disk it will try to enable write cache
on that disk anyway.
What about ATA disks?
Currently (at least on x86) the ata driver enables the write cache
unconditionally on each drive and doesn't support the ioctl to flush the cache
(although the function is already there).
Daniel
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