Slow retrieves using AIT1 drives/tapes

Subject:	Slow retrieves using AIT1 drives/tapes
From:	Henry Sacran <henry AT MARNETWORK DOT COM>
To:	ADSM-L AT VM.MARIST DOT EDU
Date:	Thu, 15 May 2003 12:22:51 +0200

Hi all,

I'm using TSM 4.2.3.4.
I was wondering if anyone has/had a "long" retrieval time.
by long time I mean 5-15 minutes, retrieving a 10MB file.
The time above includes :
1) mounting the tape    (must be a constant 50 sec at most)
2) seeking time         (the main suspect)
3) and transfer time    (I GUESS it's 3MB/sec as in spec.)

Is this normal ??!
(By the way, no errors/warnings in events log)

My Hardware
----------------
1 Library       : Qualstart TLS - 4210 v2.09
2 Drives        : AIT1 v404 (tapes SDX1-35C)
SCSI Adapter    : Adaptec AHA-2940U2/U2W SCSI (LVD/SE)

Thanks in advance

-- Henry