Re: [zfs-discuss] ZFS limits on zpool snapshots

2007-02-15 Thread Matthew Ahrens
Bill Moloney wrote: The ZFS On-Disk specification and other ZFS documentation describe the labeling scheme used for the vdevs that comprise a ZFS pool. A label entry contains, among other things, an array of uberblocks, one of which will point to the active object set of the pool it is a part

[zfs-discuss] ZFS limits on zpool snapshots

2007-02-01 Thread Bill Moloney
The ZFS On-Disk specification and other ZFS documentation describe the labeling scheme used for the vdevs that comprise a ZFS pool. A label entry contains, among other things, an array of uberblocks, one of which will point to the active object set of the pool it is a part of at a given

Re: [zfs-discuss] ZFS limits on zpool snapshots

2007-02-01 Thread Wade . Stuart
[EMAIL PROTECTED] wrote on 02/01/2007 01:17:15 PM: The ZFS On-Disk specification and other ZFS documentation describe the labeling scheme used for the vdevs that comprise a ZFS pool. A label entry contains, among other things, an array of uberblocks, one of which will point to the

Re: [zfs-discuss] ZFS limits on zpool snapshots

2007-02-01 Thread Darren Dunham
Recreation of the active uberblock would occur, for example, if we took a snapshot of the pool and changes were then made anywhere in the pool. The uberblock is updated quite often, not just on snapshots. Since a new uberblock is required in this snapshot scenario, and since it appears that