Does reclamation rewrite data block headers?

Guys, We are having some problems with VTL machines, and the support guys would like to find out if TSM rewrites the data headers when moving from tape-to-tape. Cheers, Matthew -- Matthew Large TSM Consultant Storage Services Barclays Wealth Technology Desk: +44 (0) 207 977 3262 Mobile: +4

Re: Does reclamation rewrite data block headers?

On Jun 20, 2008, at 6:37 AM, Matthew Large wrote: Guys, We are having some problems with VTL machines, and the support guys would like to find out if TSM rewrites the data headers when moving from tape-to-tape. If you mean tape labels: I don't do VTL, but it has been standard in TSM that it

Re: LTO Tape Life

All I can offer is a rule of thumb -- if you get write errors that are not the result of a dirty drive, throw it out. If you get read errors on the same tape on two different drives, throw it out. We ran about 130 LTO-1 tapes in both LTO-1 and LTO-2 drives for slightly over seven years and I en

Re: Does reclamation rewrite data block headers?

The question implies they are not 100% emulating the life of a physical tape. Andy Huebner -Original Message- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Matthew Large Sent: Friday, June 20, 2008 5:38 AM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Does reclamation r

Re: Does reclamation rewrite data block headers?

Yea. I wouldn't know if it completely rewrites it, I would think it would just append to it. But, that's a level of detail I remember hearing once, but not worrying about it enough to remember the details. See Ya' Howard > -Original Message- > From: ADSM: Dist Stor Manager [mailto:[EM

Re: Does reclamation rewrite data block headers?

Which headers? IIRC, TSM uses ANSI-standard tape labeling. So the VOL1 (tape label) is created when the tape is initialized and doesn't get updated/re-written from then on. Each file should have a 'HDR1' label; this belongs to the file, so it will get written to the 'new' tape. From what I've r

Re: Does reclamation rewrite data block headers?

Hi Richard, Thanks for that - we are looking at the possibility that the VTL is not reading the moved data as already deduplicated and is making more unique-date tags when it shouldn't be. In that respect, I don't think we're looking at tape label headers, more like scsi block headers? I coul

ANS1009W DRM and ASR backup issues

TSM client - Windows 2003 server - SP2 x64 5.5.0.6 Started seeing these errors: 06/19/2008 11:02:58 ANS1009W An error occurred processing the operating system include/exclude statements. The error was detected while processing: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\BackupRestore\Fil

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I have a little problem with one of my Tivoli 5.3 systems. Tapes in the vault gradually expire during the week and are recovered once per week, on Mondays. However, some tapes fall into Vault Retrieve status and are then "lost" overnight. For example, I have one tape today that was in Vault Ret

Re: Vanishing Vault Retrieve tapes

Looks like somehow MOVE DRM ran on it. Look in activity log for MOVE DRM job run Good luck -Original Message- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Angus Macdonald Sent: Friday, June 20, 2008 11:18 AM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Vanishing Va

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The command to define a library manager to a library client is: define library sangroup libtype=shared primarylibmanager=astro Doesn't "primarylibmanager" imply that you can have a secondary/redundant library manager Can you? I don't seem to see any documentation on it. Regards, Shawn ___

Re: Vanishing Vault Retrieve tapes

This used to happen to me when I had a "del volhist todate=-3" command running in a script without a "type" option. Otherwise, run a "q act begind=-2 s=" to see what happened to it Regards, Shawn Shawn Drew Internet [EMAIL PROTECTED] Sent

Re: PRIMarylibmanager

Hi Drew, You can support multiple library managers (not recommended). You can also support a Library manager and other tsm instances that are configured to individually talk to the same library. However, you will need to make sure that each manager or instance that accesses the same library

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Re: Does reclamation rewrite data block headers?

Out of curiousity, which VTL are you using? Jim Neal Sr. TSM Administrator IS&T Storage and Backup [EMAIL PROTECTED] -Original Message- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Matthew Large Sent: Friday, June 20, 2008 3:38 AM To: ADSM-L@VM.MARIST.EDU Subject