We only backup a subset of users, and we specifiy each as a separate
saveset (you can also use an external file to specifiy it). The
important thing is to watch during the backup. I see each mailbox as a
separate session and there are up to 8 sessions at a time.

----
Matthew Huff           | One Manhattanville Rd
Director of Operations | Purchase, NY 10577
OTA LLC                | Phone: 914-460-4039 
http://www.otaotr.com  | Fax:   914-460-4139     

> -----Original Message-----
> From: Legato NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Andrew Watkins
> Sent: Thursday, June 09, 2005 9:05 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] exchange 2003 backup of mailboxes
> 
> I checked and the parallelism  was set to 4, so I will 
> increase that, but will it make a difference. Will networker 
> do multiple mailbox backups at the same time with "MSEXCH:MB" 
> since I thought it will only read 1 mailbox at any one time. 
> Do have to split the backup into chunks e.g.
>       MSEXCH:MB/1 - 10 Users/
>       MSEXCH:MB/11 - 20 Users/
>       MSEXCH:MB/etc... Users/
>       
> I think our speed problem is down to the Windows server 
> reading the mailboxes, since a normal backup of the data 
> store is very quick:
> 
> MSEXCH:IS 7900 MB 00:15:05 5 file (compared with MSEXCH:MB 
> 6989 MB  5:46:27) 
> 
> I may be look into the EXMERGE option, which may not increase 
> backup speed, but will reduce Tape Backup speed!
> 
> 
> Andrew  
> 
> > What is your parallelism for these backups set to? Even at 
> 330K/sec, 
> > you should get around 4GB/hour of the backup. We get around 
> 800K/sec 
> > doing bricklevel backups (Exchange 2003, Windows 2003, NW 
> Module 4.1), 
> > and with a parallelization set to 8 we get a pretty decent 
> throughput.
> > 
> > Just for example, I just ran a custom backup with high priority 
> > mailboxes. The backup ran for 22 minutes and backed up 6 mailboxes 
> > with a total of 4,437 MB. This was running during the day with 
> > simultaneous access.
> > 
> > ----
> > Matthew Huff           | One Manhattanville Rd
> > Director of Operations | Purchase, NY 10577
> > OTA LLC                | Phone: 914-460-4039 
> > http://www.otaotr.com  | Fax:   914-460-4139     
> > 
> > > -----Original Message-----
> > > From: Legato NetWorker discussion
> > > [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Andrew Watkins
> > > Sent: Wednesday, June 08, 2005 12:03 PM
> > > To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> > > Subject: Re: [Networker] exchange 2003 backup of mailboxes
> > > 
> > >  
> > > Well our Solaris 9 server takes 6 hours to backup only 55 
> mailboxes 
> > > on a windows
> > > 2003 server .
> > >   Processed 169466 items 6989 MB  in 5:46:27  344338 bytes/second
> > > 
> > > I would give up my job if we put all are users to exchange!!!
> > > 
> > > I only do it now and then but how can we backup up the Mailboxes?
> > > 
> > > > I was surprised to hear that anybody is using NetWorker to
> > > do mailbox
> > > > backups, it's far too slow for us to use - our setup is NW
> > > server 7.1.2.
> > > > under Solaris 8, Exchange 2000 (400 mailboxes) and NME 
> 4.0.1 under 
> > > > Win2k.
> > > > 
> > > > Can I ask how many mailboxes you back up?
> > > > 
> > > > Does anyone else do mailbox backups?
> > > 
> > > 
> > > Andrew
> > > 
> > > --
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> > 
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> --
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> regarding this list should be sent to stan AT temple DOT edu 
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--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listserv.temple DOT edu or visit the list's Web site at
http://listserv.temple.edu/archives/networker.html where you can
also view and post messages to the list. Questions regarding this list
should be sent to stan AT temple DOT edu
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