Re: Disk RAID/mirroring/hot spares, etc

Seems like V5R2 only supported iASPs for IFS..... but I've slept since then. Also some bad memories about SAVE 21 not doing the right thing at V5R2 given the support for iASP was handled by jobs in a subsystem that went away when (then) OS/400 went into restricted state..... In any case V5R3 was when they became truly useful although I DO recall Al being 'less than impressed' with the early implementations....

- DrFranken

Very true, V5R2 is when they started. At that time a fellow named Paul
Weyer and I did several iASP pitches at COMMON discussing how they could
be useful. Later Dr. Franken and I did a few sessions as well.(some of
those were really fun, and in Indianapolis we actually created an iASP
during the session using Frankie I) I did not include V5R2 in my
earlier post since it is no longer supported by IBM. You may recall
that Al Barsa was not as impressed with them as he could have been, with
some good reason, however I contended at the time that rather than kill
the concept, it should be allowed to mature just as micro partitioning
and LPAR did.

As each successive OS is released, the feature/function set gets better
and better, as do many of the operational issues associated with iASP.
While the primary use for them in in SAP environments, I like them for
several other uses as well some of which have been discussed today.

Jim Oberholtzer
CEO/Chief Technical Architect
Agile Technology Architects, LLC