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P4500 performance issue with multisite

sand_2
Established Member

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 ?

3 REPLIES
CRiiser
Advisor

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

sand_2
Established Member

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.

 

 

CRiiser
Advisor

Re: P4500 performance issue with multisite

Noted - will do :) Thx for heads up :)

 

/Chrisitain