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07-17-2012 02:03 PM
07-17-2012 02:03 PM
P4500 performance issue with multisite
Hello,
We have a 4-node P4500 cluster (single site) with good write performance : 220-230 MByte/s.
When we expand this cluster to a 8-node P4500 multi site (network raid 10, 4 node per site, 10GE interface,
no jumbo frame, flowcontol on, latency 0.1 ms, no congestion, no error, no drop, ...) perfomance drop to
90-100MByte/s.
Does anyone have a P4500 multisite network raid 10, with latency 0.1 ms (or more) and still good write performance ?
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07-19-2012 12:48 AM
07-19-2012 12:48 AM
Re: P4500 performance issue with multisite
Hey, I got the exact same spec as you minus the 10GbE (for now).
What hosts are you connecting to the SAN? VMware / MS ? - what is the link speed and latency between the sites?
Kind regards,
Christian
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07-22-2012 10:32 PM
07-22-2012 10:32 PM
Re: P4500 performance issue with multisite
Hi,
After some test we decide to use Jumbo Frame (9000bytes). Now we have good performance (220-230 MBytes/s) .
So, if you have P4500 cluster in multisite with 10GE interface: configure Jumbo Frame.
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07-23-2012 03:42 AM
07-23-2012 03:42 AM
Re: P4500 performance issue with multisite
Noted - will do :) Thx for heads up :)
/Chrisitain