ADSM-L

Re: Dsmfmt on cx600 any thoughts?

2004-02-19 11:59:12
Subject: Re: Dsmfmt on cx600 any thoughts?
From: Justin Bleistein <justin.bleistein AT SUNGARD DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 19 Feb 2004 11:41:24 -0500
What's the difference between AIX's dsmfmt and TSM's "define logvolume"
command?

--Justin Richard Bleistein
Unix/TSM Systems Administrator (Sungard Availability Services)
Desk: (856) 566 - 3485
Cell:    (856) 912 - 0861
Email: justin.bleistein AT sungard DOT com


|---------+---------------------------->
|         |           Karel Bos        |
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I would create and format the volumes from within TSM. This will speed
things up!

Regard,

Karel

-----Oorspronkelijk bericht-----
Van: Amar Vi [mailto:Vibhute_Bandu AT EMC DOT COM]
Verzonden: donderdag 19 februari 2004 17:25
Aan: ADSM-L AT VM.MARIST DOT EDU
Onderwerp: Dsmfmt on cx600 any thoughts?


Greetings,

We have serious performance issue for dsmfmt command.

We are getting 45MB/sec write speed on AIX4.3.3 box connected to CX600 ATA
RAID5 4+1 disk group.But when we use dsmfmt it gives 9 to 16 MB/sec. Which
is very sluggish to format 16 TB storage for storage pools.

Does anybody have information on how dsmfmt works?

 or how to speed up so that it will give better I/O on SAN storage?

Thank you,

Bandu Vibhute

Technology Solutions Group

EMC²

Where Information Lives

*Office: 484-322-1000

* Cell: 484-868-0599

*E-mail: vibhute_bandu <mailto:vibhute_bandu AT emc DOT com> @emc.com