George
NetWorker supports LTO-3 only from version 7.2.1 on. In previous
versions you have to define LTO-3 drives as LTO-2 device types. Our
tape vendor suggested to go for LTO3. You can read LTO1 and LTO2 tapes
on LTO3 drives and hence you should not have problems restoring, though
you may have to go for a new media set to write.
Rgds, Ram.
-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On Behalf Of George Sinclair
Sent: 19 December 2005 16:05
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] LTO-2 or LTO-3?
Hi,
We're thinking to upgrade to LTO-2 or LTO-3 drives. We're currently
using LTO-1 drives (Seagate) on an STK L80. Does anyone have any advice
on this issue? We're mostly looking for higher capacity. We'd be running
Legato 7.x on a Dell poweredge 6650 storage node, running RedHat Linux,
to manage the library with Solaris running on the primary server. We'd
be using LSI HBA LVD/SE cards (dual channel cards with 320 MBps per
channel), which I would think would be more than fast enough.
Any bad experiences you'd care to share? Any particular vendor like IBM
versus HP you prefer? Howe about the media?
We'd most likely purchase Fugi and/or Maxell tapes. We've had problems
in the past with off-brand LTO-1 media.
Obviously, LTO-3 media will be more expensive, and we could not write to
our older gen 1 media (read-only), whereas with LTO-2 we could read and
write to our older media, but LTO-3 will write much faster and have
higher capacity. Not sure how long LTO-3 has been around, but the Legato
compatibility guide shows our L80 as supporting either the IBM or HP
LTO-2 or LTO-3 drives, so I guess LTO-3 is fully supported under Legato
7.x
Thanks.
George
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