Re: [ADSM-L] 3592JB tapes
2010-06-08 15:04:33
What I'm seeing is the JB tapes don't seem to be holding any more data than the
JA tapes, even though their capacity should be twice as much. I've updated the
device class to specify FORMAT=3592-2C and now I'm running a move data to see
what will happen.
Sam Sheppard
San Diego Data Processing Corp.
(858)-581-9668
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Fred Johanson
Sent: Tuesday, June 08, 2010 11:49 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] 3592JB tapes
As I understood the explanation when we had a similar problem, those volumes
labeled on the E05 would write at that density. If I understood correctly,
what you see looks normal.
________________________________________
From: ADSM: Dist Stor Manager [ADSM-L AT vm.marist DOT edu] On Behalf Of
Sheppard, Sam [SSheppard AT SDDPC DOT ORG]
Sent: Tuesday, June 08, 2010 1:36 PM
To: ADSM-L AT vm.marist DOT edu
Subject: Re: [ADSM-L] 3592JB tapes
These were labeled in the only drive type we have, TS1120 (3592-E05).
Sam Sheppard
San Diego Data Processing Corp.
(858)-581-9668
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Fred Johanson
Sent: Tuesday, June 08, 2010 11:27 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] 3592JB tapes
Which drive wrote the initial label?
________________________________________
From: ADSM: Dist Stor Manager [ADSM-L AT vm.marist DOT edu] On Behalf Of
Sheppard, Sam [SSheppard AT SDDPC DOT ORG]
Sent: Tuesday, June 08, 2010 1:20 PM
To: ADSM-L AT vm.marist DOT edu
Subject: [ADSM-L] 3592JB tapes
We have just purchased a bunch of 3592JB tapes (700GB uncompressed capacity) to
use for some large NDMP backups. My first test last night backing up around
1.8TB of data completely filled two of these tapes. This is only marginally
better than what I was getting on the 3592JA tapes which are rated at 300GB
uncompressed. We have 8 TS1120 (3592-E05) drives in a 3494 library and are
running TSM 6.1.3.4. The device class specifies FORMAT=DRIVE which should
cause recording at the highest available density. I would think almost all of
this data would fit on one of these volumes. Any ideas where I am going wrong?
Thanks
Sam Sheppard
San Diego Data Processing Corp.
(858)-581-9668
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