Hi, A site uses different size local page DS. say most are 200K TRK , but 1 is 10K TRK. normal : 15% 70% used problem: 60-70% 95%
I said it's best to use same-size DS & have usage of under 30% (each DS), but it was rejected as old-recommendation. Sometimes they get IRA205I. MSG actually says: ... When utilization exceeds 30%, the slot allocation algorithms become less efficient, and may degrade I/O performance. Is this ROT still apply: same size local PAGE DS < 30% used Is there any HW feature (DASD/HPAV/ton-of-cache/ton-of-this/that/etc), where this ROT should be ignored? TIA, Rez ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
