[Veritas-bu] Exchange Mailbox Backup
2007-05-10 19:05:48
Subject: |
[Veritas-bu] Exchange Mailbox Backup |
From: |
tech2187 at yahoo.com (K Chapman) |
Date: |
Thu, 10 May 2007 16:05:48 -0700 (PDT) |
i no longer do brick levels, and we didnt have decent enough tape drive tech
(mammoth2, yuk) to do much mpx/ms. i used to do mpx 4 (normal fs jobs),
however the drives would fail in much shorter time, and we did get quite a high
drive fail rate with exabyte. time wise, i couldnt allocate more than 1 drive
to deal with brick level. we also had a single exch server so pulling a few
streams while folks are hitting mb's wasnt fun. so as the db got bigger we
went a diff route, tape tech and exch deployment wise. info stores were always
speedy, so we bought recov mgr for exchange and that gives us the ability to
recover mailboxes without having to deal with the exch org directly or brick
level backups.
lto2 is our current tape tech and we get 40mb/sec,single stream, for info
stores and we have a few backend servers. i have no complaints now in terms of
backup speed/message level recoverability.
aaarrrggghhh!!!!
FreeBSD rocks
----- Original Message ----
From: Curtis Preston <cpreston at glasshouse.com>
To: K Chapman <tech2187 at yahoo.com>; "Martin, Jonathan" <JMARTI05 at
intersil.com>; Anas Kayal <anas at up.org.qa>; veritas-bu at
mailman.eng.auburn.edu
Sent: Thursday, May 10, 2007 5:50:31 PM
Subject: Re: [Veritas-bu] Exchange Mailbox Backup
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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
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- [Veritas-bu] Exchange Mailbox Backup, K Chapman
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- [Veritas-bu] Exchange Mailbox Backup, WEAVER, Simon (external)
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