Any data you delete will be unavailable for restores. RE:making full volume to scratch actually i need the command so that my particular volume will be empty and tsm automatically reuse it. I don't think you fully understand how TSM works and I urge you to read at least the introduction of the admin guide. It'll ask you whether you're sure you know what you're doing and I hope you are PJ Last edited: Jun 20, PJ said:.
Most likely, the volume is already considered to be a scratch volume, so when it's empty, it will go back to the scratch pool and be reused. I think what you may be doing is looking at volumes that have gone to full and been sitting there untouched for a very long time. If you have data sitting on long-unaccessed removeable volumes. Take this scenario: A tape in the copypool loses some data.
A few months later the primary pool tape containing that same data loses that same data. You are asked to restore that object. You get the error from reading the primary volume. This is the point at which you find out about that problem. You go to the copy pool volume. You have unrecoverable data loss. What I do is every week I run a "move data" on the least-recently-written tape. If I got to where that was more than 6 months out, I'd increase the frequency. Email Address. All Sign in options.
Enter a Email Address. Choose your interests Get the latest news, expert insights and market research, sent straight to your inbox. Newsletter Topics Select minimum 1 topic. Thanks in advance! Anonymous Posted August 12, 0 Comments. Ensure that you set maximum number of scratch volumes high enough for expected usage, when you exceed this number, you can do one or both of the following points: 1-increase maximum number of scratch volumes by updating storage pool definition and label new volumes to be used as scratch volumes if needed; 2-make volumes available for reuse by running expiration processing and reclamation, to consolidate data onto fewer volumes.
Lee Nadreau Posted August 13, 0 Comments. Register or Login. Doing that means you couldn't restore the TSM DB back to to that time, but in a pinch, it's a possibility. Why out of scratch, though? I'd check to see if reclamation has been running successfully. EDU Subject: [ADSM-L] There are not enough scratch volumes available I'm getting messages saying "There are not enough scratch volumes available" At the moment the tape library is fully populated with tape volumes.
You are right, check for "unavailable" tapes. I've seen bad tape drives take out all the tapes in a library, one by one, while you weren't looking. Check that, for sure! EDU] on behalf of Chavdar Cholev [chavdar. Also check for tapes which may have been dedicated via Define Volume and which might be put back into the scratch pool. This is to say that you may be artificially out of immediately usable scratch tapes, but that potentially usable tapes may be identified and rendered candidates once again.
You should not check primary storage tapes out of a library except in dire circumstances, and then judiciously.
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