Been having some problems with our Dell Poweredge 136T library with LTO drives lately, we've been getting alot of bad media errors (ANR8944E) and sparodic I/O errors (ANR8302E). There is about 6 of our LTO tapes at the moment which have been experiencing in excess of 180 read errors each, and occassionally they have hung reclaimation or storage pool backup processes forcing the reboot of the server. Several of our other tapes have one or two read errors attributed to them as well but not to the level of some of the others.
Looking back at the activity log, the errors primarily occur on DRIVE0 and DRIVE1 in the library (4 LTO drives in total installed). I've run a AUDIT VOLUME on a couple of the tapes and damaged files were encountered. Drives 0 & 1 do not have their cleaning lights illuminated and they get cleaned every two weeks or when required. The library's and LTO drives firmware are at the latest releases supplied by Dell. The Eventlog for the TSM servers has some of these errors reported in it: The description for Event ID ( 3 ) in Source ( AdsmScsi ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. The following information is part of the event: \Device\mt1.2.0.3, Locate Block ID, DD_DRIVE_OR_MEDIA_FAIL. The device, \Device\mt1.2.0.3, has a bad block. I'm unsure whether this is a symptom of our drives needing a service or perhaps our tapes are getting a bit worn as most have been stored in the library for the past 3 years and used regularly. Anyone had similar problems in the past? Environment: TSM for Windows v5.2.3 TSM Device Driver v5.2.3 Windows 2000 Server w/sp4 Dell PowerEdge 136T Library Thanks, Gordon Woodward Wintel Server Support -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
