Did you put much time into tuning the TCP/IP parameters for the "Bandwidth
Delay Product" over the link? I've been doing a lot of reading about TCP
tuning and a lot of it seems to relate to WAN link tuning for performance.
Basically keeping the pipe full by turning on window scaling and setting
an appropriate TCP window size. People report very large improvements
after playing around with the settings, but it does depend on having
separate WAN interfaces for backups to e.g. the interface used for short
packets like telnet or a web server.
I don't have any WAN links to deal with, I'm just trying to get the most
out of the GbE and 100Mbps LAN. Mind bending stuff, especially as each
Windows version changes the way it works.
I would be interested if anyone has worked out what works and what does
not.
William D L Brown
"Paul Keating" <pkeating AT bank-banque-canada DOT ca>
Sent by: veritas-bu-admin AT mailman.eng.auburn DOT edu
16-Feb-2006 13:05
To
veritas-bu AT mailman.eng.auburn DOT edu
cc
Subject
RE: [Veritas-bu] Backing up Remote Sites
We have 5 remote offices, each with 1 unix file server that's backed up,
and 0 IT staff.
We back them up with a nightly incremental, a weekly synthetic, and a full
once a month. (about 24 hours for a full ~20 Gigs)
They get backed up to a small DSSU sitting on a couple concatenated local
drives, and staged to tape daily.
Works great.
I agree, something like the tacit system would be nice.
Paul
-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Martin,
Jonathan (Contractor)
Sent: February 15, 2006 5:32 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Backing up Remote Sites
Speaking from experience here, if the remote site is a small office with
1-5 servers and a small library, DO NOT USE NETBACKUP!
BackupExec works just fine, and it MUCH easier to manage!!
We are considering purchasing devices from Tacit (
http://www.tacitnetworks.com/) which not only replicate data back to our
main datacenter to be backed up, but they also (supposedly) replicate user
data (files) email / exchange DBs and Active Directory functions. Worst
case scenario, if the local box goes down everyone grabs the "master"
files from the WAN.
Admittedly I'm not in the group that is testing this device, but I've
heard nothing but rave reviews so far.
-Jonathan
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Cornely,
David
Sent: Wednesday, February 15, 2006 4:16 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Backing up Remote Sites
You might want to consider something like Data Domain or a product like
Riverbed.
I like the idea of Riverbed (a WAN acceleration device), where you could
bring your file servers back to the local site, backing them up there, and
then your remote users would access the file server via the WAN, with
Riverbed devices on each end. The idea is that this device makes the file
server appear local to the remote users.
Any way you cut it remote site backups are a pain and the fewer autonomous
NBU environments you have the better off you will be.
-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of j.
okabayashi
Sent: Wednesday, February 15, 2006 10:44
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Backing up Remote Sites
All,
I just wanted to get an idea of what everyone is doing to back up any
remote sites they may have. I am running NBU 5.1 MP4 on W2K3 servers. I
have a few sites with a single DC that is acting as file server, and print
server. As of right now, these single servers are not getting backed up.
Can NBU be used for this or should we look into something else? Any
insight would be appreciated.
Thanks,
Jason
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