What kind of multistreaming/multiplexing are you using, and what is your
target?  I've gotten mailbox backup performance up to an "acceptable"
level (4 years ago I was at about 50 MB/s) by creating 28 simultaneous
mailbox streams, one for each letter of the alphabet (used * at the A-Z
level) and sending all of those to the same tape drive.  I'll bet I
could get faster than that now.

 

---

W. Curtis Preston

Author of O'Reilly's Backup & Recovery and Using SANs and NAS

VP Data Protection

GlassHouse Technologies

 

________________________________

From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of K
Chapman
Sent: Thursday, May 10, 2007 12:22 PM
To: Martin, Jonathan; Anas Kayal; veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Exchange Mailbox Backup

 

you are seeing this speed doing brick level, or are you seeing it with
info store backups?  ive never seen brick level go too fast on any type
of disk/net/tape drive combo (5.5/2000/2003).  info stores go quite fast
in all cases (as expected).

 

aaarrrggghhh!!!!
FreeBSD rocks

 

----- Original Message ----
From: "Martin, Jonathan" <JMARTI05 at intersil.com>
To: Anas Kayal <anas at up.org.qa>; veritas-bu at mailman.eng.auburn.edu
Sent: Thursday, May 10, 2007 8:30:55 AM
Subject: Re: [Veritas-bu] Exchange Mailbox Backup

We recently upgraded our storage on our Exchange 2003 cluster from a
locally attached Dell Powervault 220 to a HDS SAN solution and saw our
back times go from 8 hours to 45 minutes making no other changes.  I'm
not sure exactly what our KB/sec was before, but we're seeing better
than 100MB/sec now over Gigabit Ether.

 

-Jonathan

 

________________________________

From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Anas
Kayal
Sent: Thursday, May 10, 2007 8:17 AM
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] Exchange Mailbox Backup

Im backing up Exchange 2003 Mailboxes through my LAN. Backup process
takes about 10 hours for about 200GB of data. Does anyone know what I
can do to drop it down. 

 

Anas 

 

_______________________________________________
Veritas-bu maillist  -  Veritas-bu at mailman.eng.auburn.edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu

 

 

________________________________

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