ADSM-L

Re: LTO2 unreliability

2005-06-06 11:00:16
Subject: Re: LTO2 unreliability
From: Zoltan Forray/AC/VCU <zforray AT VCU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 6 Jun 2005 10:58:48 -0400
The firmware is as current as it can be for both the drives and library.

While the atape drive is a little behind, most of the updates have to do
with LTO3 and 3592 support, of which we have neither.



pelson <pelson AT NBNET.NB DOT CA>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
06/02/2005 04:29 PM
Please respond to
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Subject
Re: [ADSM-L] LTO2 unreliability






We had several issues with LTO2 firmware and library firmware causing
false
alarms. I'm make sure your running the latest code

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Zoltan Forray/AC/VCU
Sent: Wednesday, June 01, 2005 12:54 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] LTO2 unreliability

Are all LTO2 drives as unreliable as I have been experiencing ?

We installed our first 3583 with 2-LTO2 drives, about a year ago. Of the
two drives, both have been replaced at least one. I just replace one of
the replacements, again (wouldn't power up). The first replacement was
after about a month of usage !

We just upgraded our configuration by adding 2-drives to the existing
library and purchasing another 3583 with 4-drives.  These have now been in
use for about 2-weeks.

Of the 2-new drives added to the old library, one of them is already
showing signs of problems (shows A! on the panel, which the book says
drive hardware fault).

Of my 9+ years of experience with 3590 (B and E) drives, I have never seen
so many failures. Especially considering the amount of tapes that have
been fed through the 3590 drives (the 4-E drives run through over
200-mounts a day).

Is this normal ?

Also, no I do not push what I consider a lot of data through these drives
(~ 1TB per week).

What kind of experiences do other folks have with IBM 3580 LTO2 drives,
when it comes to reliability ?

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