Veritas-bu

[Veritas-bu] Average backup time

2003-03-24 16:42:24
Subject: [Veritas-bu] Average backup time
From: Don.OShea AT emergis DOT com (O'Shea, Don)
Date: Mon, 24 Mar 2003 16:42:24 -0500
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I turned off OTM and turned off compression. I just realized though that
someone enabled my old class that had these enabled and it ran first taking
up all the backup window. However this backup when running was backing up
3824KB/SEC. To back up 37,603,072KB it took 8:48.00 before the operator had
to kill it so it would not interfere with production.

The other thing I was noticing is I may be backing up alot of files I have
in my exclude list. Which report actually specifies which individual files
are being backed up and if they are in my exclude list why aren't they being
excluded. This backup backs up a virtual cluster server so I have set the
exclude list from the master and from each server in the cluster. I am not
sure that it took effect though as it backed up more than it should have.

Don

-----Original Message-----
From: Tim McMurphy [mailto:Tim.McMurphy AT telus DOT com]
Sent: Monday, March 24, 2003 16:05
To: 'O'Shea, Don'
Subject: RE: [Veritas-bu] Average backup time


So mostly large files. That should be well above the 5 GB per hour. I would
think 15-25 would be more the order from my experience. 

Client  Minutes Megabytes       Files           Mybtes/Min


asp-srv 83              15,856  29,064  191
woodchuck-b     1142            113,318 406,423 99


quite a spread here.

Try turning OFF OTM if you haven't already.

-----Original Message-----
From: O'Shea, Don [mailto:Don.OShea AT emergis DOT com]
Sent: Monday, March 24, 2003 2:06 PM
To: Tim McMurphy
Subject: RE: [Veritas-bu] Average backup time


These are database dumps so for the most part the disk is taken up by 7
database dumps. There are 2 datrabases that take up most of the space and
the rest are under 3GB.

Don
-----Original Message-----
From: Tim McMurphy [mailto:Tim.McMurphy AT telus DOT com]
Sent: Monday, March 24, 2003 15:49
To: 'O'Shea, Don'; Veritas-Bu (E-mail)
Subject: RE: [Veritas-bu] Average backup time


depends on file sizes

3 large 15+ gig files will backup a lot quicker than 20,000 small files
even though they both use the same quantity of disk space (45gig).

what do you have for #'s of files?

-----Original Message-----
From: O'Shea, Don [mailto:Don.OShea AT emergis DOT com]
Sent: Monday, March 24, 2003 1:32 PM
To: Veritas-Bu (E-mail)
Subject: [Veritas-bu] Average backup time


I was just wondering how long backup times are taking for everybody. It is
currently taking us about 10 hours to back up 50GB of data which seems to be
a very long time. The servers are dual PII 450 processors with over 2GB of
memory running Windows 2000 Advanced Server. Nics are locked down at
100/full and I have increased the size and number of data buffers so I am
just curious as to if this is normal.
If anyone has any benchmarks it would be appreciated. 
Don O'Shea 
BCE Emergis Inc. 
(905)707-4000 Ext 3765 
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