Well, just wrapped a performance report. Found out that the core reason of poor application performance was because the local workstations were equipped with a single SATA (or 'Slower than ATA' as I call them) slow RPM drive. Um. No dedicated controller + slow drive + lots and lots of small IOs = poor performance. Never mind the CPU and memory performance, this shows it always comes down to the slowest moving part - no, no, not the customer...
Nice aspect of capacity planning consulting is that you can say to the customer: fix this! 'This can be just a single drive or controller or bus, even on a lowly workstation.
Moral of story: monitor workstations. Can save a lot of unncessary project spin and a lot of money. Let me see: typical project costs #400 per day? Cost of new SCSI drive for workstation: 160.
Next project: Data Centre design...watch this space.
No comments:
Post a Comment