Hi Rohit,

My view is that your application performance is the most important. This is what our users see and feel. The problem is that for every application, the impact of the storage on the performance is different. For our Databases, responstime is the key. So for those applications we measure the latency. For our PACS (digital radiology) is Mb/s more important.

So we try to measure the application performance and the key infrastructure elements of that application (like latency).

On filer level, we monitor the CPU to give a general idee of the load of the filer.

Best regards,

Reinoud Reynders IT manager Infrastructure & Operations Leuven University Hospital

-----Original Message----- From: owner-toasters@mathworks.com owner-toasters@mathworks.com To: toasters@mathworks.com toasters@mathworks.com Sent: Wed Nov 15 11:58:39 2006 Subject: Measuring Filer Performance

Hi Folks

I had some open questions and i hope you'll help me answer them based on your experience.

1. If you just had a single metric to determine filer performance what would it be ? Would it be CPU usage, throughput, latency, IOPS..or anything else ?

2. At your place, what metrics do you use to determine if a filer is still good enough not to worry about ?

thanks rohit

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