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тАО01-03-2012 11:27 PM
тАО01-03-2012 11:27 PM
Is 4GB cache sufficient for P6300EVA performance?
I have proposed P6300 EVA to my customer. It has 4GB cache. HP Continuous Access will replicate data to another P6300 EVA at DR site over IP WAN link of dedicated 16 Mbps. The normal rate of replication is expected to be in the range of 400 Kbps to 800 Kbps with the peak replication rates going upto 2Mbps (rarely) with the amount of data changes happening in the primary array. The servers host SAP application and Oracle DB servers for ERP as well as Exchange and Symantec Enterprise Vault. Exchange replication is NOT array based, while SAP and EV make use of EVA CA.
Can someone tell me if 4GB cache is sufficient for managing the array performance taking into account the routine IOPS of servers as well as the replication? OR should I propose P6500 EVA so that I can have 8GB cache?
Thanks in advance.
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тАО01-04-2012 12:52 AM
тАО01-04-2012 12:52 AM
Re: Is 4GB cache sufficient for P6300EVA performance?
Yes 4 GB is fine. Go ahead with that.
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тАО01-04-2012 01:12 AM
тАО01-04-2012 01:12 AM
Re: Is 4GB cache sufficient for P6300EVA performance?
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тАО01-04-2012 02:39 AM
тАО01-04-2012 02:39 AM
Re: Is 4GB cache sufficient for P6300EVA performance?
Some things I believe make a difference:
whether you are going to use asynch or synchronous replication?
how are you going to connect the arrays over IP?
delay / response time over the link
only one IP WAN link? will you be able to load balance / use exchange based routing?