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Message Posted: Tue, 01 Dec 2009 @ 17:03:43 GMT


     
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Subj:   Re: Degradation of Arcmain performance after upgrade
 
From:   anne.k.kearney

Hi all,

Thanks for the input

Apologies for not being clear - we have a production system and a dr system. They are exact copies. So we upgraded our production from a 5400 to a 5550 and we upgraded our DR from a 5400 to a 5550.

We use restore as the primary strategy for replicating data to our warm DR environment.

So the restores are from a 75amp system to a 75amp system.

We are experiencing performance degradation for arcmain restores in this new enviroemnt in comparison to the arcmain restores on the old 5400 (4node running v2r6)

We have 3 bar nodes and currently run one stream on each - on our dr side we have 3 bar servers and run one stream on each. As its a full system restore there is a mixture of large and small tables. We see a degradation in performance across all our restores irrspective of whether they are large or small tables. We dont do cluster archives

A) Does anyone else use arcmain restore as a scheduled process to replicate data to a DR environment ?

B) If yes - has anyone experienced our issue and have advice/examples on what strategies they engaged to cope ?


Any other input would be appreciated

rgds anne kearney
Allied Irish Banks



     
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