I don't have it any more, but if you have MIM and something like CA-OPS, I had a trick...
MIM has tape "preference" numbers, the bigger the number, the greater preference is given to the drive. @V xxx,PREFERENCE=999 is the command. At each mount, I set PREFERENCE down by 1 for the drive. When it got to 0, I set it back to 999. Now we have 3490-C22's, one ESCON per controller for 2 drives. ESCON can pretty much keep 2 drives busy w/o bottleneck. You could also set fixed preference values for the first drive in each string, then -1 for the nth drive per string, to balance I/O without the script. For 2 strings, like this DEVNO 60x= 500 499 498 497 DEVNO 62x= 500 499 498 497 The mounts should then occur in the order 600, 620, 601, 621, etc. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
