Chris Gerhard wrote: > If you have a separate ZIL device is there any way to scrub the data in it?
zpool scrub traverses the ZIL regardless of wither or not it is in a slog device on in one of the normal pool devices. > I appreciate that the data in the ZIL is only there for a short time but > since it is never read if you had a misbehaving ZIL device that was just > throwing the data away you could potentially run like this for many months > and only discover the problem when you reboot and go to read the ZIL to > replay it. > > So is there anyway to verify the ZIL device is working as expected (ie can > return the data written into it) while the system is running? Do a sync write which will cause the ZIL to be used then before the txg is commited run 'zdb -ivv <poolname>'. Or if you are feeling really brave and don't mind exporting the pool you can use the undocumented test capability and run 'zpool freeze' then do your writes (even a normal non sync will be enough here), the export and reimport the pool. -- Darren J Moffat _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
