On Thu, 20 Aug 2015 16:26:30 +0000, J O Skip Robinson wrote: >No unique catalog for USS objects. System level OMVS all have the same HLQ >pointing to a general purpose user catalog. Individual USS files typically >have the user's HLQ or some other HLQ associated with the application; these >all go into the user catalog associated with the alias. > But beware. There are warnings that using user HLQs for UNIX repositories engenders an opportunity for escalation of privileges, etc. Provided the user can reverse-engineer the HFS/zFS format, dismount the UNIX FS, and tweak the SUID bit, etc. (Do mount maps provide a NOSUID attribute?)
>I've never investigated this, but I suspect that HFS/ZFS in general are much >more stable than traditional MVS files. No GDGs, no temporary allocate/delete >processes in batch. Allocate once, use forever at the MVS file level because >the dynamic activity is all in the USS directory structure. I see no reason >for a unique catalog. > Temporary data sets (are we discussing the same thing?) are among the Classic features I miss most in UNIX. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
