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How to decrease/check I/O time call

Question asked by ramonbaro on Aug 8, 2013


How to decrease/check I/O time call

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     I have a problem with FileMaker Server 11 Admin Console version

     To set the scene first inform the server hardware:

     Model Name: Mac mini
     Model Identifier: Macmini3, one
     Processor Name: Intel Core 2 Duo
     Processor Speed: 2.26 GHz
     Number of Processors: 1
     Total number of cores: 2
     L2 Cache: 3 MB
     Memory: 4 GB
     Bus Speed: 1.07 GHz

     As for the hard drive:
     Capacity: 500.11 GB (500,107,862,016 bytes)
     Model ST9500325AS
     Native Command Queuing: Yes
     Queue Depth: 32
     Removable media: No
     Removable Drive: No
     BSD Name: disk0
     Speed: 5400
     Media Type: Rotary
     Name compartment: Lower
     Partition Map Type: GPT (GUID Partition Table)
     S.M.A.R.T. Status: Verified

     The server brings service to 13 clients. Sometimes these terminals must wait a considerable time since the accesses to a layout until the information is showed.

     If through Admin Console I look at the statistics, I realize that the parameter “I/O Time Call” has a value of 6619 (average) and 13360763 (peak), which, from what I can make out are very high numbers. This parameter indicates the time a remote call waits for the disk read or write, therefore a first solution that comes to my mind is to change the disc. But not only could be a disk problem, but also could be a matter of general hardware obsolescence. It could also be an issue concerning  software, or network, thereby changing the server with a new one would not solve the problem.

     For all these reasons, I wander how I can verify that the problem that I have is related with hardware before changing it. What tests could I do to make sure the 6619 and 13,360,763 “I/O Time Call” are due to the server is not powerful enough?

     Thanks in advance.