Has been discussed at times here. Apparently the bottom line is that LTO drives don't need cleaning tapes very often. I have 3584 with 8 drives for 18 months, backing up 700GB per day and making offsite copies each day. Cleaning tape hasn't been used once! Using IBM tapes.
David B. Longo System Administrator Health First, Inc. 3300 Fiske Blvd. Rockledge, FL 32955-4305 PH 321.434.5536 Pager 321.634.8230 Fax: 321.434.5509 [EMAIL PROTECTED] >>> [EMAIL PROTECTED] 10/13/03 12:35PM >>> What is the normal clean frequency for LTO-1 drives in a 3584? I have the drives defined to TSM with a cleaning frequency of "none", and the 3584 library set to Automatic cleaning, per recommendations. Yet, when I use the front panel of the 3584 to look at the cleaning cartridges, one has never been used, and the other has only been used 4 times. We have had this library for nearly 2 years now. I started looking at this because of the number of tapes that are marked read-only or unavailable per night (anywhere from one to 7 so far, usually 2 or 3 per night). The eight drives show as follows: Drive1 Library Loads: 10391 Library Unloads: 10381 Drive Loads: 867 (drive1 has been reset recently) MB Written: 2903279 MB Read: 1923642 Cleans: 0 -------------------------- Drive2 Library Loads: 10023 Library Unloads: 10015 Drive Loads: 6535 MB Written: 49313622 MB Read: 26764547 Cleans: 0 -------------------------- Drive3 Library Loads: 10239 Library Unloads: 10234 Drive Loads: 1598 MB Written: 10083308 MB Read: 5886656 Cleans: 0 -------------------------- Drive4 Library Loads: 6877 Library Unloads: 6873 Drive Loads: 6461 MB Written: 44438571 MB Read: 25808491 Cleans: 0 -------------------------- Drive5 Library Loads: 6528 Library Unloads: 6527 Drive Loads: 6705 MB Written: 47722355 MB Read: 28614867 Cleans: 0 -------------------------- Drive6 Library Loads: 1933 Library Unloads: 1932 Drive Loads: 2144 MB Written: 11874084 MB Read: 6888474 Cleans: 0 -------------------------- Drive7 Library Loads: 2051 Library Unloads: 2050 Drive Loads: 2823 MB Written: 27765506 MB Read: 7691746 Cleans: 0 -------------------------- Drive8 Library Loads: 2102 Library Unloads: 2101 Drive Loads: 2265 MB Written: 12299072 MB Read: 8002016 Cleans: 0 These tape drives have transferred thousands of terabytes of data (what's that.. exabyte?), apparently without cleanings. What can I check to find out why, other than what I mentioned above (Lib set to AUTO, and drives set in TSM to none). Thanks in advance Todd ############################################################## This message is for the named person's use only. It may contain confidential, proprietary, or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it, and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. Health First reserves the right to monitor all e-mail communications through its networks. Any views or opinions expressed in this message are solely those of the individual sender, except (1) where the message states such views or opinions are on behalf of a particular entity; and (2) the sender is authorized by the entity to give such views or opinions. ##############################################################