Veritas-bu

[Veritas-bu] Backup speeds Windows servers

2007-01-05 13:06:53
Subject: [Veritas-bu] Backup speeds Windows servers
From: enyamada at gmail.com (Edson Noboru Yamada)
Date: Fri, 5 Jan 2007 16:06:53 -0200
A important thing to consider is file system fragmentation and
number and size of files, which may impactseverely on performance.

In order to check this, try to create a single big file (2 GB, for example)
and
create a test policy to backup only that file. Under normal conditions,
on a idle system/network, you should be able to get over 50 MB/s.




On 1/5/07, M S <bmw325ia at hotmail.com> wrote:
>
> Bobby,
>
> You may also want to check if your NIC on windows server is throttled down
> by Windows by default.  I have heard about this that Windows by default
> will
> throttle down to some very low throughput.  Please check further into it.
>
> Muhammad Shafi
> Senior Unix Admin
>
> ---------------------------------------------------------------------
>
>         -----Original Message-----
>         From: veritas-bu-bounces at mailman.eng.auburn.edu
> [mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Bobby R
> Windle
>         Sent: January 5, 2007 8:28 AM
>         To: veritas-bu at mailman.eng.auburn.edu
>         Subject: Re: [Veritas-bu] Backup speeds Windows servers
>
>
>
>         I'm curious to hear what kind of speeds (mbs/sec) others are
> getting backing up windows servers.
>
>         Running Netbackup Enterprise 5.1 mp6 under Solaris10 on
> master/media servers.
>
>                 a.        Using brocade 2g ports 48000 director.
>                 b.        IBM Ultrium LTO Gen2 drives
>                 c.        Sun branded Qlogic 2gb cards. single port
> feeding each tape drive.
>                 d.        The storage on the windows servers is FC
> attached Hitachi Tagmastore 9990.  (Very fast drive configuration.)
>                 e.         Servers are HP G5's also 64 bit. Some are 32
> bit. Seems 32 bit servers are actually faster.
>
>         note:         Some of my other backups such as Solaris, Linix
> and Netware can get as much as 20 mb/sec with this configuration.
>                 So why are the windows servers so slow? Any  one have
> some kind of idea what may be a cause?  Or it is what it is!  Windows!
>
>         Bobby Windle ( Data backup & Recovery )
>         W.L. Gore & associates, Inc.
>         bwindle at wlgore.com
>         cell : (302) 588-7374 (preferred)
>         office: (302) 292-4026
>
>
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