The original question was about when to replace a tape. The LTO-CM info is the only repository of this info for LTO. As the library manager, TSM should be reading this info from every tape and making available to "manage" the library.
Here is a list of some of the stuff in LTO-CM (from www.mptapes.com who make a reader for the CM) Percentage of records in error Recovered read & write errors Unrecovered read & write errors Servo errors & fatal servo errors Number of bytes written & read Number of cartridge loads Age of cartridge Manufacturer of cartridge Manufacturer of the tape Details of the last four times the cartridge was used Orville L. Lantto Storage Consultant GlassHouse Technologies, Inc. 200 Crossing Boulevard Framingham, MA 01702 [EMAIL PROTECTED] www.glasshouse.com -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Mark Stapleton Sent: Wednesday, October 18, 2006 3:15 PM To: [email protected] Subject: Re: [ADSM-L] Tape TTL From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Orville Lantto >For newer tape technologies, the information is on the chip in each >tape. If only TSM would retrieve that info. (Sounds like an opportunity for an inventive code writer.) Technically, this is incorrect. The smart chip technology in LTO and other tape cartridges tracks mounts/dismounts, duration of mounts, and such. It does not track scratch tapes and really can't. Since scratch tapes have no existence within storage pools (by definition), and there's no way to track anything that doesn't reside within the library, scratch tape tracking must be done externally; it can be done with a fairly simple spreadsheet and a little ODBC connectivity to the TSM database. -- Mark Stapleton ([EMAIL PROTECTED]) Senior TSM engineer
