Re: Backup options
2004-11-11 17:49:26
David,
I run a GigE NIC in my TSM 2-way 6H1 with all SCSI-connected storage.
GigE works very well because most of the sending nodes are on 100 Mbs with
a few larger servers on GigE. That prevents the recipient - the TSM
server - from being the bottleneck.
The CPU load scales up with the data througput, but using Topas, I have
seen as much as 80 MB/s passing through the NIC during peak backup times.
And while idle % was very low (~1 % or so) the server reported no
difficulties and response time to TSM Admin commands like "Q PR" was
instantaneous.
Tab Trepagnier
TSM Administrator
Laitram, L.L.C.
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 11/10/2004
07:14:01 AM:
> >Another option is to bump-up your ethernet... are you already running
> a
> >gigabit ethernet? We've actually bumped up the TSM server and the
> large
> >unix clients to Gigabit Ethernet, and it improved the throughput of
> the
> >backup.
> >
>
> The 100 meg card in our TSM server is saturated during our backup
> window. We are exploring moving to a gig ethernet. Did you see changes
> in your TSM server when you went to the faster speeds? Higher cpu,
> paging? What effects did you see in your disk/tape I/O?
>
> David
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- Re: Backup options, (continued)
- Re: Backup options, Troy Frank
- Re: Backup options, William Rosette
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- Re: Backup options, David E Ehresman
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Tab Trepagnier <=
- Re: Backup options, David E Ehresman
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