What parameter did you use - Markfull or Reuse? If for some reason you feel you need to use Markfull, then you need to recycle on a regular basis to avoid running out of available output volumes.
SETSYS - PARTIALTAPE(BACKUP(REUSE) - MIGRATION(REUSE)) Dave O'Brien NIH Contractor ________________________________________ From: IBM Mainframe Discussion List [[email protected]] On Behalf Of Bri P [[email protected]] Sent: Thursday, April 16, 2009 4:52 AM To: [email protected] Subject: Using HSM DASD backup volumes Hi folks I've been trying to get HSM to backup to DASD daily backup volumes in a large pool on our SAN. The benefit is that we get instant remote replication to the DR site over Global Mirror, instead of messing around with replicating virtual tape images and keeping those in sync, which has taken our DR recovery window down from four hours to around 30 minutes. However, HSM really doesn't seem to be very good at doing it this way and I'm on the verge of junking the whole lot in favour of a batch solution based around full/incrementals using ADRDSSU or, if I can get budget approval, FDR/ABR. Has anyone got any experience, opinions or solutions using HSM DASD backup volumes, especially about any of the following: - it takes much, much longer to run than using tape (around 3-4 hours instead of 45-50 minutes), which surprises me as I thought it would be quicker (my SAN DASD is attached by FICON and my virual tape is ESCON) - the SPILL volumes are all marked as FULL in LIST BVOL, but most of them are 99% empty - one LPAR still writes about half of the backups to tape, even though I have gone through all the SETSYS parameters meticulously, and they're identical to those on an LPAR which does not write any to tape The discovery this week that the backup tasks were suspended whilst "WAITING FOR A SPILL VOLUME' and me subsequently finding that they're all marked FULL, is the final straw, I think. It's starting to be more trouble than it's worth. Any advice gratefully received. Brian ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
