On 2 October 2012 10:20, John Eells <[email protected]> wrote: > Roberts, John J wrote: >> >> So while we might have 1TB drives in our desktops, the enterprise RAID >> arrays are stuck at 73GB-146GB-300GB per HDA. > > Actually, z/OS has supported 1TB drives (EAVs) on DS8Ks since z/OS R10, > which went out of service last year. In R10 we supported VSAM, in R11 we > added Extended Format sequential, and in R12 (the oldest release now in > service) we added support for "almost everything else." There are still > some outliers for system-level data sets (RACF DB, page data sets, NUCLEUS, > etc.) but the vast majority of application data can now live happily on an > EAV so long as it's read and written using system access methods.
But this surely has little if anything to do with the size of the physical drives used by the makers of storage subsystems. Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
