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Slow backups of 4TB

Updated: 23 May 2010 | 4 comments
Stas Krasovsky's picture
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Hello,
 
I am having some issues backing up a file server. It is a Windows Server 2003 Storage Server R2 SP2 64bit. I am running DFSR on it to mirror data to another identical server at another location. It is on a Gigabit network with dual teamed NIC's and TOE capability. Server has 2 RAID 5 Array's with 15 10k drives per array and 10% or less fragmentation.
 
The backup server is Windows Server 2003 Standard Edition SP2. It is on a Gigabit network with dual teamed NIC's. Server has 2 RAID 5 Array's with 15 10k drives per array and 15% or less fragmentation.
 
The backup is set to exclude all DFSR staging folders and does not use compression.
 
I have tried backing up with DFSR disabled with TOE disabled with a Single NIC with teamed NIC's and still the speed does not improve.
 
Does anyone have any suggestions on what could be wrong?
 

Comments

Ken Putnam's picture
13
Jun
2008
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Waht speeds are you seeing?
 
If you just copy a large chunk of data between these to servers using xcopy or something similar, is the speed about the same?

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Stas Krasovsky's picture
13
Jun
2008
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I am seeing speeds of 250MB/Min in the backup
2400MB/Min in the duplication
 
11GB File copy once an hour
7m:10s
5:32
7:04
5:34
5:37
4:54
4;24
Stas Krasovsky's picture
16
Jun
2008
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Well today is an interesting day. One backup ran at 1,899MB/Min and another one of the same server ran at 82MB/Min.
 
 
This is the first backup in months to break the 250MB/Min mark.
Ken Putnam's picture
17
Jun
2008
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If you have a support contract, it is probably time to open an incident, if no one else jumps in
 
I'm out of suggestions

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