> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Tim Haley
> 
> You can see it with ls:
> # ls -ld -% all /net/server/export/ws/timh/nvc
> drwxr-xr-x   9 timh     staff         13 Apr 21 01:25
> /net/server/export/ws/timh/nvc/
>           timestamp: atime         Apr 21 07:54:05 2010
>           timestamp: ctime         Apr 21 01:25:48 2010
>           timestamp: mtime         Apr 21 01:25:48 2010
>           timestamp: crtime         Jun 22 08:27:23 2009

This is precisely the point of the discussion.  That doesn't work.  Observe:
(First of all, what system do you have -% on?  I don't have it on either
solaris 10, or rhel 4)

You want to get the atime, ctime, mtime, crtime.  I am now repeating what's
already been discussed in this thread.  Observe:

The atime, ctime, mtime are all useless.  Because here are two different
snapshots, taken on different days, and the mtime etc are identical.  You
can't use that information to figure out which is newer, if you distrust the
name of the snap to give you the time of the snap.

It's been mentioned that you can "zfs list -t snapshot" to get them sorted
correctly, but that's the best we've got, and it's only available on the
host itself.  Not available on NFS client.

(From the ZFS file server itself)
I haven't found any way to even display the mtime.  Neither ls or stat.
This was all I found:
[r...@nas snapshot]# python
>>> import os
>>> os.stat('/share/.zfs/snapshot/daily-2010-04-21-00-00-00')
(16877, 3L, 47514090L, 16, 0, 0, 20L, 1269878840, 1269878847, 1269878847)
>>>
>>> os.stat('/share/.zfs/snapshot/daily-2010-04-20-00-00-00')
(16877, 3L, 47514101L, 16, 0, 0, 20L, 1269878840, 1269878847, 1269878847)

The last 3 are atime, mtime, ctime.  All identical.


(From a NFS client, RHEL 4)
[ehar...@air ~]$ stat /share/.zfs/snapshot/daily-2010-04-21-00-00-00
/share/.zfs/snapshot/daily-2010-04-20-00-00-00

  File: `/share/.zfs/snapshot/daily-2010-04-21-00-00-00'
  Size: 20              Blocks: 3          IO Block: 32768  directory
Device: 10h/16d Inode: 3           Links: 16
Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2010-03-29 12:07:20.478083718 -0400
Modify: 2010-03-29 12:07:27.110569183 -0400
Change: 2010-03-29 12:07:27.110569183 -0400

  File: `/share/.zfs/snapshot/daily-2010-04-20-00-00-00'
  Size: 20              Blocks: 3          IO Block: 32768  directory
Device: 10h/16d Inode: 3           Links: 16
Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2010-03-29 12:07:20.478083718 -0400
Modify: 2010-03-29 12:07:27.110569183 -0400
Change: 2010-03-29 12:07:27.110569183 -0400

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