Not that it's very helpful for you, but I just rolled out lto3 drives
with maxell tapes, and those have been fine. I know this isn't likely,
but are any of the scsi controllers you're using raid capable? I've
heard of big problems with that. In the case of adaptec, their raid
cards often let you turn off the raid capability in their bios, which
would take care of the problem. The best solution is to just use plain
scsi hba's, not raid cards. Short of that, you could have a bad drive,
some bad tapes, or a bad scsi cable or two.
>>> steve AT STEVENHARRIS DOT INFO 4/19/2006 11:07 PM >>>
Hi All
I have a client with a new installation TSM 5.3.3 on Windows 2003 on
IBM x346 and 3583 with 3x LTO3 Drives.
I initially had some issues with the tape drives because one of them
had been connected to the internal SCSI bus and that not only was not
supported, it caused multiple tape errors.
So, I corrected that - the library manager and one tape drive are on
one adaptec SCSI adapter and the other two drives are on another
adapter - and we're running through doing initial backups of about
7TB of client data, bit by bit each night. But the tapes seem very
unreliable - I had two with errors night before last and one last
night. These also make the housekeeping run very slowly so I'm not
getting it all done.
Last night's tape was first used yesterday afternoon on drive0, then
again at 16:00 on drive2 then overnight again on drive0.
Its now showing errors being read on drive0, so its a bit hard to
isolate the problem.
The tapes are all new Imations - I could not get IBM branded ones in
a timely manner.
Has anyone had problems with new LTO3s? Any suggestions as to what to
do next are welcome.
Steven Harris
AIX and TSM Administrator
Confidentiality Notice follows:
The information in this message (and the documents attached to it, if any)
is confidential and may be legally privileged. It is intended solely for
the addressee. Access to this message by anyone else is unauthorized. If
you are not the intended recipient, any disclosure, copying, distribution
or any action taken, or omitted to be taken in reliance on it is
prohibited and may be unlawful. If you have received this message in
error, please delete all electronic copies of this message (and the
documents attached to it, if any), destroy any hard copies you may have
created and notify me immediately by replying to this email. Thank you.
|
