We used to use nmon, now we dump a bunch of stats into a database and make pretty graphs and charts. The DBAs determined that 'transactions per second' is congruent to 'i/o operations per second' and would work for what they want. We have given disk planning over to them since they are the biggest DASD user and SSA has died a sad and painful death to be replaced with the SAN. Now they have come to the conclusion that they need totally dedicated storage groups on the SAN with one LUN on each, essentially were we were 10 or 15 years ago with the SSA, but hey this stuff uses lasers so it can't be all bad. ;-) |