On Sun, Dec 6, 2009 at 8:11 PM, Anurag Agarwal wrote:
> Hi,
>
> My reading of write code of ZFS (zfs_write in zfs_vnops.c), is that all the
> writes in zfs are logged in the ZIL. And if that indeed is the case, then
IIRC, there is some upper limit (1MB?) on writes that go to ZIL, with
larger ones
On 12/06/09 10:11, Anurag Agarwal wrote:
Hi,
My reading of write code of ZFS (zfs_write in zfs_vnops.c), is that all
the writes in zfs are logged in the ZIL.
Each write gets recorded in memory in case it needs to be forced out
later (eg fsync()), but is not written to the on-disk log until
Hi,
My reading of write code of ZFS (zfs_write in zfs_vnops.c), is that all the
writes in zfs are logged in the ZIL. And if that indeed is the case, then
yes, ZFS does guarantee the sequential consistency, even when there are
power outage or server crash. You might loose some writes if ZIL has not
