Hi - can anybody tell me what the default behaviour is for cfgmgr when it allocates hdisk numbers to newly discovered disks in the ODM ? I want to add a disk from our FAStT700 SAN disk array and import it on our p-series (AIX 5.2). Problem is we import and export Flashcopy devices fror scripted backups there too.

If my Flashcopies are mounted when I introduce the new disk, I'm guessing it will just get the next available id (in our case hdisk27). However, if I subsequently disable the Flashcopies (hdisks17-26) then reintroduce them at a later date, will they still get id's 17-26 or will the system start numbering them from hdisk28 ?? If so I might have to change all our scripts.

Essentially I just need to know does the system always use the lowest available id; or just the next (incremental) one to the one it just allocated ?

Thanks in advance.