Keenan,

We run ADSM clients on HP9000s running serviceguard.

So far, of all of the HA environments (Sun/Qualix, IBM/HACMP),
serviceguard, HP and ADSM have been the most stable (guess which one has
been the least stable).  One project has 3 machines with 9 total
packages.  We run client processes for each package (multiple
serverstanzas in dsm.sys and multple dsm.opt files with different
domains specified).  They typically do about 10GB/day.  Failover works
well and as expected.

David Hendrix
dmhendri AT fedex DOT com