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Showing posts from November, 2011

Moving data center from India to US

Wow, looks challenging and it's indeed. So, we have finally decided to move our DR data center from India to US. The location I cannot disclose however its almost 50% of the original data center at Atlanta. The designing phase is over except for the data center power and cabling and I believe it happens given the short time frame of 45 days (don't laugh, it got extended by 6 months and I feel another 3 months more it deserves). There are few things which I don't know why it happens every time we try to do something big. 1. Specification keeps on changing, regarding the list of applications for which we are building our DR. 2. RPO and RTO is not decided and simply we are doing an infrastructure DR not true DR. There is no BCP. 3. We are trying new technology Cisco UCS vs discrete Dell servers and going for full virtualization at DR. We are simply doing too many things and rather experimenting new technologies at data center. 4. How the data will get replicated was decided po...

Cache statistics not visible in analyzer

If you have enabled performance logging on EMC VNX, then it is expected to display all the statistics including the SP and FAST cache. However, with the default configuration of statistics logging, you will not be able to see. We have to go to the dashboard of statistics and click customize then check Advance. The advance features of the performance statistics will be visible now.

Why psrset is not working

Sometime have you came across a situation where you want to create psrset but it doesn't works. Please check if pool facility is active or not. If its active then you won't be able to create psrset. svcs -a | egrep pool. Disable pool and create psrset again.