Gregory Shaw wrote:
In recent Linux distributions, when the kernel shuts down, the
kernel will force the scsi drives to flush their write cache. I don't
know if solaris does the same but I think not, due to the ongoing focus
of solaris and disabling write cache.
The Solaris sd(7D)
Gregory Shaw wrote:
I had a question to the group:
In the different ZFS discussions in zfs-discuss, I've seen a
recurring theme of disabling write cache on disks. I would think that
the performance increase of using write cache would be an advantage, and
that write cache should be
On 5/26/06, Bart Smaalders [EMAIL PROTECTED] wrote:
There are two failure modes associated with disk write caches:
Failure modes aside, is there any benefit to a write cache when command
queueing is available? It seems that the primary advantage is in allowing
old ATA hardware to issue
ZFS enables the write cache and flushes it when committing transaction
groups; this insures that all of a transaction group appears or does
not appear on disk.
It also flushes the disk write cache before returning from every
synchronous request (eg fsync, O_DSYNC). This is done after
writing
