ADSM-L

Re: Gigabit Ethernet speed

2002-12-24 17:33:58
Subject: Re: Gigabit Ethernet speed
From: "Kelly J. Lipp" <lipp AT STORSOL DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 24 Dec 2002 15:36:18 -0700
What kind of performance are you seeing?

I would expect a number greater than 20,000 KB/sec as reported by a client
summary.

I also would expect it to be highly variable and dependent on client speed.
I believe that Gig E is going to be faster than just about anything else in
all but the highest end systems so suspect a bottleneck elsewhere.

As with 100 Mbit networks, duplex and link speed incompatibilities are
killers.  100/1000 full is the way to go.  Stay away from Auto unless you
have un-managed network switches.

Thanks,

Kelly

Kelly J. Lipp
STORServer, Inc.
485-B Elkton Drive
Colorado Springs, CO 80907
lipp AT storsol DOT com or kelly.lipp AT storserver DOT com
www.storsol.com or www.storserver.com
(719)531-5926
Fax: (240)539-7175


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Conko, Steven
Sent: Tuesday, December 24, 2002 7:44 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Gigabit Ethernet speed


anybody have any tips on what type of "Network transfer rate" we should be
seeing for our backups over gigabit ethernet? the clients backup via copper
Gb ethernet dedicated for backups to a tsm server connected to a 3494 tape
library with 10 3590 tape drives via fibre channel/brocade switch.

there is only one client on one gigabit interface and 3 on another.

any tips for improving network performance?

thanks

Steven A. Conko
Senior Unix Systems Administrator
ADT Security Services, Inc.

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