-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
The native compression of AIT-4 is 200 gb, so this is really weird.
I'd be staisfied with
190 GB. We were getting that at the start.
~ mht
Werth, Dave wrote:
| Matt,
|
| We installed AIT-4 tapes about 2 months ago and in looking at the
| tapes that are full it looks like we're averaging around 190 GB per
| tape (it varies from 136 GB to 208 GB) with software compression.
| What you're seeing is about half of that so is it possible you
| don't have compression turned on? I think the native capacity of
| AIT-4 is 100 GB so that would make sense.
|
| Dave
|
| David Werth Garmin AT, Inc Salem, Oregon dave.werth AT garmin DOT com
|
| -----Original Message----- From: Matt Temple
| [mailto:mht AT RESEARCH.DFCI.HARVARD DOT EDU] Sent: Friday, November 18,
| 2005 3:44 PM To: NETWORKER AT LISTSERV.TEMPLE DOT EDU Subject: [Networker]
| 80 GB on AIT-4 tapes?
|
|
|
| ------------------------- This e-mail and any attachments may
| contain confidential material for the sole use of the intended
| recipient. If you are not the intended recipient, please be aware
| that any disclosure, copying, distribution or use of this e-mail or
| any attachment is prohibited. If you have received this e-mail in
| error, please contact the sender and delete all copies. Thank you
| for your cooperation
|
|
| 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
|
|
|
To sign off this list, send email to listserv AT listserv.temple DOT edu and
type
"signoff networker" in the
body of the email. Please write to
networker-request AT listserv.temple DOT edu if
you have any problems
wit this list. You can access the archives at
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER
~ -------------------------
This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient. If you are not the intended
recipient, please be aware that any disclosure, copying, distribution
or use of this e-mail or any attachment is prohibited. If you have
received this e-mail in error, please contact the sender and delete
all copies.
Thank you for your cooperation
To sign off this list, send email to listserv AT listserv.temple DOT edu and
type "signoff networker" in the
body of the email. Please write to
networker-request AT listserv.temple DOT edu if you have any problems
wit this list. You can access the archives at
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER
- --
=============================================================
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!
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (Darwin)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iD8DBQFDfo9OzU3UBZgqMzoRAvnyAJ9C6hMM29J51Ra5aFKAPSr+mK7xIwCg2iYG
oLQPVKQSZPvX02uUyPbqyso=
=a1sQ
-----END PGP SIGNATURE-----
To sign off this list, send email to listserv AT listserv.temple DOT edu and type
"signoff networker" in the
body of the email. Please write to networker-request AT listserv.temple DOT edu
if you have any problems
wit this list. You can access the archives at
http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER
|