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Tommi
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Full Name: Tommi Wassini
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a question about speed

Post by Tommi » Nov 08, 2011 9:01 am

hi everyone.

i am having some strange speed problems, and hope for some guidelines for trobbleshooting here.

when i make a new job i get no more then 10Megabyts/sec this was with Max compression and WAN target option.
the backup server is a psysical server with thease specs

HP 350ML g3
intel Xeon quad 2.33 GHZ processor
7 giga ram
1 dual Nic dedicated to software ISCSI teamed ports Gigabit
5 disks running raid 5 SATA
windows 2003 R2 with all updates.

the processor max load with this backup job is 28% and it only use max 1 giga ram.

i thought it might be my storrage thats slow its on old
HP AIO600
it runs windows storrage server 2003
6 SAS disks running raid 5
1 dual Nic dedicated to Software ISCSI Teamed ports Gigabit
intel xeon dual 2.66 Ghz processor
1 giga ram


fun thing is,,, if i start another new backup job so i have 2 running at the same time,, i get 2x 10 megabytes/sec through the entire job. and about 50% processor use.

now thats strange,, that tells me that the storrage can deliver the speeds,, why is 1 backup then only 10 megabytes/sec
can anyone give me some hints to what is wrong ??

any ideas would be greatly apriciated,
cheers
Tommi

Gostev
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Re: a question about speed

Post by Gostev » Nov 08, 2011 10:00 am

Hi Tommi,

There is information on improving iSCSI performance available in the sticky FAQ topic.
Also, you can search the forum for iSCSI for other similar troubleshooting cases.
Generic guideliness on finding your bottleneck can be found in this topic.

Thanks!

Tommi
Enthusiast
Posts: 49
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Joined: Sep 23, 2010 12:12 pm
Full Name: Tommi Wassini
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Re: a question about speed

Post by Tommi » Nov 08, 2011 10:08 am

thanks looking into it :)

cheers
Tommi

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