VM's saved segments and saved systems also live in the spool (spool filetype NSS; "CMS" is the most know NSS).
Issue Q SDF to see how many "special" files are found in the spool, and Q NSS to list all saved segments. Saved segments can be re-created if you know how, otherwise you can save them on tape using SPXTAPE DUMP NSS .... With such a tape -recreate a new CPXTAPE backup after you apply service- you don't need to backup spool. If you don't DDR page nor spool volumes, you need to FORMAT and ALLOCATE these packs at the DR site, using the standalone ICKDSF module (lives on MAINT CF1 too, can be IPLed and used using SAPL). This may be a reason to still include spool packs on the DDR. With at least spool available, you can IPL VM and use a REXX EXEC to rebuild the page packs soon after IPL (and before starting guests). 2010/2/25 caleb ong <[email protected]> > Hi, > > I am doing some backups for zvm for dr purposes. Aside from the zvm res > volume, I was wondering if we really need to backup the spool and page > volumes. > based on my readings, It seems i don't need to backup paging volumes. for > spool volumes, if i am going to do a cold start during ipl, > then backing up spool volume is not needed. I will be using DDR during > backup and the system will be shutdown during the backup. > Is my understanding correct ? > > Thanks. > > Caleb > > > > -- Kris Buelens, IBM Belgium, VM customer support
