In general exclude lists work for directories as well as files so I'm
not sure why you stated they don't work for the former.

 

________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mark
Glazerman
Sent: Monday, August 04, 2008 8:53 AM
To: [EMAIL PROTECTED]
Cc: veritas-bu@mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] ZFS Filesystem Backups - Tips and tricks

 

Domink,

 

The problem with exclude lists is that if you start having a different
exclude list for each server, it quickly becomes a nightmare keeping
those lists current and up to date.  Also, because ALL_LOCAL_DRIVES
doesn't recognize the ZFS filesystems, the only way to have them
included was to start listing the mountpoints in the backup selections
tab of the policy.  We tried looking at include lists also but those
only work for individual files, not whole directories.

 

This brought us to our workaround where we had to specify every possible
zfs mountpoint in the backup policy and then make sure that each of
those directories existed on every server (to avoid the 71's).  That has
worked like a charm over the weekend so will have to do until there is a
release of NBU which includes ZFS under the ALL_LOCAL_DRIVES backup
selection

 

Thanks

 

Mark Glazerman

Desk: 314-889-8282

Cell: 618-520-3401

P please don't print this e-mail unless you really need to

 

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] 
Sent: Monday, August 04, 2008 1:17 AM
To: Mark Glazerman
Subject: Re: [Veritas-bu] ZFS Filesystem Backups - Tips and tricks

 


You couldn't use exclude lists ??? 

"Mark Glazerman" <[EMAIL PROTECTED]> 
Sent by: [EMAIL PROTECTED] 

01/08/2008 11:34 PM 

To

<Veritas-bu@mailman.eng.auburn.edu> 

cc

 

Subject

[Veritas-bu] ZFS Filesystem Backups - Tips and tricks

 

 

 




Incase anyone is considering implementing any ZFS in their environment
which they want to back up using NetBackup we found out yesterday that
ALL_LOCAL_DRIVES as the backup selection does NOT cover ZFS filesystems.

  
We have a number of Sun boxes which have various test and development
oracle instances which are housed inside ZFS file systems.  We blew away
one of these test instances the other day (after doing a full OS backup
and the required RMAN backups) but when we went to restore the data from
the ZFS filesystems, NBU didn't have anything under the uppermost
directory.  A quick check of other systems with ZFS showed the same
issue.We spent the better part of 2 days playing around with the
include_list's and exclude_list's but nothing worked. 
  
In order to backup ZFS file systems you must explicitly add the ZFS
directories into the backup selections of the backup policy.  This "fix"
was also confirmed by Symantec support who were also happy to tell me
that ZFS isn't officially supported by NBU yet. 
  
This on its own should work great if you have a single policy backing up
a single server with all it's ZFS under the same parent directory.
However, if like us, you have a backup policy which backs up multiple
servers, each with their own uniquely named ZFS file systems, you need
to get a bit creative.   
  
The policy in question backs up 15 Sun boxes  with a total of 6
differently named ZFS file systems spread amongst them.  If you just
list the file systems in the backup selections, NBU looks for each of
those different filesystems on each server and spits out an error code
71 (None of the files in the file list exist) for every directory it
can't find.  The only way we could work out to avoid these errors (and
there were a lot of them) was to create every missing directory on every
server and then touch a tiny file inside each of these directories.  Now
when the policy runs, it sees each directory (as listed in the backup
selection) on each server and doesn't moan about anything.  Perhaps not
the neatest of fixes but it works. 
  
Apologies for the wordy post, just thought I'd put this info out there
in case anyone else is moving towards ZFS. 
  
Mark Glazerman 
Enterprise Storage Administrator 
Spartech Corporation 
Desk: 314-889-8282 
Fax: 314-854-8282 
Cell: 618-520-3401 
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>  
http://www.spartech.com <http://www.spartech.com/>  
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