I am seeing the same recurring problem. Approximately, every two days, the
tape devices are unable to be used, giving I/O errors. The only solution is
to reboot the Legato server. It's almost like a counter is being filled, but
the error counters on the tape drives are not full. We do get a lot of tape
critical warnings because we don't have sufficient tape drives, so the
backup groups wait a while for a free tape drive.

Legato 7.1 is running on a Sun V480 with Solaris 9. The tape library is an
ADIC i2000 with 7 IBM LTO-2 drives. They are fibre-channel connected via a
SAN through a CISCO 9509 with a Hitachi 9580 disks.

Paul Gilles
Systems Administration
NAVTEQ


>Date:    Wed, 4 Aug 2004 19:01:08 +0300
>From:    Itzik Meirson <imeirson AT MBI.CO DOT IL>
>Subject: LTO drive problems after upgrade to NW 7.1
>
>It seems that we are experiencing som LTO instability after upgrading fro=
>m Networker 6.1.x to 7.1.x.
>It seems as if after the upgrade we are getting very sporadic tape I/O er=
>rors that are causing premature tape closure. We have tried to disable CD=
>I but that did not realy solve the problem.
>I wonder if any of you have seen such problems and could recommend a proc=
>edure to solve the problem.
>Itzik

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