<<< SUBSYS::SYS$ETC:[NOTES$LIBRARY]OPTICAL.NOTE;1 >>> -< Optical Products >- ================================================================================ Note 811.0 How many jb's can be MSCP served 1 reply CSC32::R_ROBERTSON 41 lines 19-MAR-1997 13:11 -------------------------------------------------------------------------------- HOW TO FIND OUT HOW MANY DEVICES CAN BE SERVED TO THE CLUSTER The number of disks that can be served to the cluster will vary by vms type and version. For instance when VAX VMS v6.1 originally came out it allowed 512 disk devices to be served but Alpha VMS was still set to 256, I believe that was corrected. As the new RW557's with 238 platters get out there (476 jb devices) and with more customers having multiple jukeboxes, the following is a quick way to determine how many can be MSCP served. $ lib/extr=$dsrvdef sys$share:lib.mlb $ edit/read lib.mar . . . $EQU DSRV$B_HOSTS 164 $EQU DSRV$S_UNITS 2048 $EQU DSRV$L_UNITS 196 <--------------**************** $EQU DSRV$L_OPCOUNT 2244 <--------------**************** $EQU DSRV$L_ABORT_CNT 2248 $EQU DSRV$L_GET_CMD_CNT 2252 formula is L_opcount - L_units $EQU DSRV$L_GET_UNT_CNT 2256 _________________ $EQU DSRV$L_SET_CON_CNT 2260 $EQU DSRV$L_AVAIL_CNT 2276 4 $EQU DSRV$L_ONLIN_CNT 2280 (each entry = 4 bytes ) $EQU DSRV$L_SET_UNT_CNT 2284 $EQU DSRV$L_DET_ACC_CNT 2288 2244 - 196 so ______________ = 512 4