On March 6, 2007 11:23:26 AM -0800 Brian Gao <[EMAIL PROTECTED]> wrote:
ZFS claims that it can recover user error such as accidentally deleting of files. How does it work? Does it only work for mirrored or RAID-Z pool? What is the command to perform the task?
zfs snapshot
Also for COW, I understand that during the transaction (while data is been undated), ZFS keeps a copy of the previous data. However, once the transaction is successfully completed, isn't it the case that the previous data blocks are unreferenced and can be used by future writes?
Yes, except of course when you've taken a snapshot.
So there should be no guarantee that the previous data can be recovered.
That's right. If you haven't taken a snapshot the data is lost. -frank _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
