On Fri, 18 Feb 2011 09:12:21 +0100, R.S. <[email protected]> wrote:
>The most practical approach: use proper tools. HSM (of FDR/ABR) backups >could be easily RECYCLEd, not to mention ease of backup process. >Of course HMS should be implemented in advance, so this is not an advice >for this case. > >For this case I would suggest two approaches: > >1. WAIT. Start using new tapes for new backups and wait - old backups >will expire. he longer you wait the more backups expire. > >2. Remaining dumps (or everything if you don't want to wait) can be >COPYDUMPed without affecting BLKSIZE or restored on dasd with RENAME. >The last option involve manual process of changing names, at least at >HLQ level, but "manual" (non-HSM) backups do require such knowledge. > >BTW: Are you sure the blocksize on 3590 is 229360? >The largest blocksize available on Jaguar is 256kB. >BLKSIZE LIMIT (forgot the keyword) can be up to 2GB, but it is >theoretical (system software) limit. SCSI reference of Jaguar specifies >that blocksize can be up to 2MB. > >So, if your blocsize is really 229360, then you don't need to reblock >the dumps! Sigh. Maybe I didn't make the situation clear. We already have HSM. We already use TMM. We want to use TMM with our new ATL (3592 tape) to hold DFDSS DUMP datasets currently on our old ATL (3590 tape). The problem is that these datasets have a blocksize of 229360 (and yes, I am sure of that). This blocksize is way too big for DASD, which is where we have to put it for it to be put on tape by TMM. COPYDUMP does not allow the blocksize to be changed. COPYDUMP is the only supported way to copy DUMP datasets. So we appear to be stuck without a way of moving this data to TMM, other than restoring the data and re-dumping it to TMM. Any better ideas than restoring and re-dumping would be gratefully appreciated. Waiting for the old backups to expire is not an option, as some of these have to be kept for 7 years and we need to move the old ATL out now. Fred ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
