 | | | nv_sata performance issues | nv_sata performance issues 2005-08-23 - By Kurt Heine
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Hello all. I am having performance issues with SATA drives and I am wondering
where I may look to figuring out what is going on and maybe tuning the discs to
increase performance.
I am running a two servers a production and a test server . One server is the
older HP DL145 G1 running PATA using 2 drives in software RAID-1 and the other
is a newer HP DL145 G2 running SATA hardware RAID-1. Each server has 4GB of
memory and the newer G2 has a second processor. The old server is running
RHEL3 ES U5 and the newer one is running RHEL4 ES U1.
What I am noticing is when the drives are under load on the newer G2 server
then the system becomes rather sluggish and preformance is extremely slow
because of being io bound.
I have included the dmesg of the hardware for the rhel4 based G2 server and the
rhel3 based G1 server.
Where is a good place to start looking and seeing where I can tune (if possible
) to get better performance?
Regards,
Kurt Heine
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