Great idea, Miles. Some of my installations use older technology, e.g DLT
or 8mm Mammoth for offsite DR and use LTO for on-site normal backup. This
way the investment in old technology is redeployed. With DLT and 8mm you
don't have the slow-as-molasses reclamation processing if these
technologies are used for DR. Offsite reclamation only produces output
tapes and hence can even be used with small single-drive DLT libraries
since the input for offsite reclamation comes from the LTO library.

Joerg Pohlmann


Miles Purdy <PURDYM AT NISA.GC DOT CA>@VM.MARIST.EDU> on 2001-02-08 10:54:16 AM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

Sent by:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


To:   ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:  Re: MagStar Tape Library #3575 vs. LTO



Hi LuAnn,
we are also in the exact same situation. We backup a large database and
many smaller filesystems. We also have and SP and L32 3575. My thoughts are
this: keep the magstar _and_ buy LTO. I plan to use LTO for the database
backups (few but large files) and my offsite storage pool. Then keep using
the magstar for the many, but smaller filesystem files.

Miles

-------------------------------------------------------------------------------------------
Miles Purdy
Miles Purdy
System Manager
Farm Income Programs Directorate
Winnipeg, MB, CA
purdym AT nisa.gc DOT ca
ph: (204) 984-1602 fax: (204) 983-7557
-------------------------------------------------------------------------------------------
>>> L.Mezera AT LABSAFETY DOT COM 08-Feb-01 12:10:13 PM >>>
>>> L.Mezera AT LABSAFETY DOT COM 08-Feb-01 12:10:13 PM >>>
We are reaching storage capacity limit in our current MagStar Tape Library.
We have TSM 3.7 (will upgrade to 4.1 later in the summer).  Our TSM
environment is in an AIX environment.  We have 6 RS/6000 AIX nodes on an SP
switch and about 30 NT servers that we back up nightly.

We are looking at upgrading or adding on to our existing library.  One
option our vendor would like us to consider is the use of a LTO system.  He
said that although it is not quite as fast our as MagStar the storage
capacity on the tapes are 100 gig native and 200 gig compressed.  Does
anyone have any opinions on that?

Thanks.
Lu Ann Mezera
Data Center Supervisor
Lab Safety Supply
(608) 757-4909 voice
(608) 757-4652 fax
l.mezera AT labsafety DOT com