We are trying to build a file system tuned specifically to receive
inbound data from Legato Networker 7.3. We are trying to get our write
size per second to match what we have specified in the Device block size
in the device configuration setting in the file type device we have
specified to back up to. We have set the Device block size to 1024 KB,
and the volume block size shows 1024 KB. When we did a test run of this
configuration then we only got speeds of 64 kb/s. We used the formula as
follows to determine the speed:

 

( Using IOSTAT on Solaris 10 we did the following calculation which
yielded ~64 kb/s  (Mw/s * 1024)/ (w/s)

 

Does anyone have any thoughts on tuning this? The file system we are
trying to fine tune is SAM/QFS. 


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