October 18, 2015 at 8:11 am
Hi
we transfered all servers to new datacenter .
we have san and all servers are virtual .
But this 2 counter values worried me :
(in about 72 hours)
server 1 :
1- Logical disk sec/read=0.069 , Logical disk sec/write = 0.008 (in first run in 24 hours was 0.196)
2- Physical disk sec/read=0.069 , Physical disk sec/write = 0.008 (in first run in 24 hours was 0.196)
server 2 :
1- Logical disk sec/read=0.097 , Logical disk sec/write = 0.127
2- Physical disk sec/read=0.097 , Physical disk sec/write = 0.127
But in documents was said that It should be between 0.001 and max 0.015. and we have an online bussiness.
is there any Storage problem?
Thank you
October 20, 2015 at 1:35 am
It's only a problem if the end result is that the application is too slow for your users. But if these are average values, they are definitely not good. Especially the sec/writes would bother me (not just the raw number, but also the increase moving from server 1 to server 2).
October 20, 2015 at 2:38 am
It's definitely not desired read/write per sec times. We had a case with a SSD disk that went gone ... first starting with 0ms response times and increasing to 1.5sec. So keep an eye on it.
Igor Micev,
My blog: www.igormicev.com
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