If you are using a SAN DATa Gateway to bridge the gap between your FC and
SCSI drives then that might be the bottle neck. So it is worth checking it
out.
Regards,
Michael Swinhoe
Storage Management Group
Kelly Lipp
<lipp@STORSOL To: [EMAIL PROTECTED]
.COM> cc:
Sent by: Subject: Re: LTO strange behaviour
"ADSM: Dist
Stor Manager"
<[EMAIL PROTECTED]
RIST.EDU>
07/02/02
16:03
Please
respond to
lipp
Where is the data coming from? During the testing I did on LTO vs. SDLT I
observed similar behavior. I concluded that the RAID5 set containing my
disk storage pools was the bottleneck.
The paper is available at
http://www.storsol.com/pub/LTOvsSDLT.pdf?timeout=200
Kelly J. Lipp
Storage Solutions Specialists, Inc.
PO Box 51313
Colorado Springs, CO 80949
[EMAIL PROTECTED] or [EMAIL PROTECTED]
www.storsol.com or www.storserver.com
(719)531-5926
Fax: (240)539-7175
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of
Denzel, Richard van
Sent: Thursday, February 07, 2002 6:43 AM
To: [EMAIL PROTECTED]
Subject: LTO stange behaviour
Hi All,
I've come across a strange problem:
An RS/6000 F80 with an 3584 (8 * LVD drive) has an average througput op 20
MB/s when using all 8 drives(Split across 3 UltraSCSI-controllers 3-3-2).
Normally you would assume a max. throughput of 8 * 15 MB/s = 120 MB/s when
making a backup.
Anyone for comments and/or solutions?
Richard.
-------------------------------------------------
Richard van Denzel
High Availability & Storage Solutions
Senior Technical Consultant
Infrastructure Consulting & Integration
[EMAIL PROTECTED]
Getronics Infrastructure Solutions
Wiltonstraat 42
Postbus 1005
3900 BA Veenendaal
tel.: 0318 - 567 100
fax: 0318 - 567 633
mobiel: 06 - 212 78 569
Building Futures on <<http://www.getronics.com/>>
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