Re: [zfs-discuss] Re: Re: Re: ZFS consistency guarantee

2007-06-08 Thread Peter Schuller
1. ZFS atomic operation that commits data. 2. Writes come into the app. 3. The db put in hotbackup mode. 4. Snapshot taken on storage. 5. ZFS atomic operation that commits data. So if i do a snap restore, ZFS might revert to point1, but from the db perspective, it is inconsistent and we

Re: [zfs-discuss] Re: Re: Re: ZFS consistency guarantee

2007-06-08 Thread Darren Dunham
1. ZFS atomic operation that commits data. 2. Writes come into the app. 3. The db put in hotbackup mode. 4. Snapshot taken on storage. 5. ZFS atomic operation that commits data. So if i do a snap restore, ZFS might revert to point1, but from the db= perspective, it is

[zfs-discuss] Re: Re: Re: ZFS consistency guarantee

2007-06-07 Thread ganesh
Thanks Darren. let me try to put this in points - 1. ZFS atomic operation that commits data. 2. Writes come into the app. 3. The db put in hotbackup mode. 4. Snapshot taken on storage. 5. ZFS atomic operation that commits data. So if i do a snap restore, ZFS might revert to point1, but from the

Re: [zfs-discuss] Re: Re: Re: ZFS consistency guarantee

2007-06-07 Thread Darren Dunham
Thanks Darren. let me try to put this in points - 1. ZFS atomic operation that commits data. 2. Writes come into the app. 3. The db put in hotbackup mode. 4. Snapshot taken on storage. 5. ZFS atomic operation that commits data. So if i do a snap restore, ZFS might revert to point1,