Networker

[Networker] 80 GB on AIT-4 tapes?

2005-11-18 18:48:12
Subject: [Networker] 80 GB on AIT-4 tapes?
From: Matt Temple <mht AT RESEARCH.DFCI.HARVARD DOT EDU>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Fri, 18 Nov 2005 18:44:21 -0500
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All,

~          Anyone have any idea why we might be getting about 80 gb on our
AIT-4 tapes.   Consistently   80, 85, 87, etc.

~          On the thought it might be a particular scsi card and
driver, I replaced
our adaptec card with an LSI-logic one.   No difference.

~          Does anyone have any settings for stinit.def for AIT-4, or
do you use the same
as AIT-3?   Block sizes?

~          (By the way -- this is a storage node, we've run it both
with RH9 and Fedora Core
1 with no differences in behavior.).   To make matters stranger, we
were getting higher
density when we first got the drives this May.)

~          Kernel is 2.4.21.2199.5ntlsmp; 4 gb RAM; we're using a tape
blocksize of 192K
as we do with the AIT-3 drives.

~          By the way -- Networker 7.1.3.   Our machine and drives:

| Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: QUALSTAR Model:
| TLS-46120        Rev: 224b Type:   Medium Changer
| ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 01 Lun: 00
| Vendor: SONY     Model: SDX-900V         Rev: 0102 Type:
| Sequential-Access                ANSI SCSI revision: 03 Host: scsi2
| Channel: 00 Id: 02 Lun: 00 Vendor: SONY     Model: SDX-900V
| Rev: 0102 Type:   Sequential-Access                ANSI SCSI
| revision: 03 Host: scsi3 Channel: 00 Id: 03 Lun: 00 Vendor: SONY
| Model: SDX-900V         Rev: 0102 Type:   Sequential-Access
| ANSI SCSI revision: 03



- --
=============================================================
Matthew Temple                Tel:    617/632-2597
Director, Research Computing  Fax:    617/582-7820
Dana-Farber Cancer Institute  mht AT research.dfci.harvard DOT edu
44 Binney Street,  LG300/300  http://research.dfci.harvard.edu
Boston, MA 02115              Choice is the Choice!
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