in case of low speed file transfer on file server, which parts of server should be suspected as bottle neck ?
Posted on 2012-03-15
I found that the transferring data speed is very low between serverA to serverB in my office.
I connected serverA and serverB directly, link is up at Fast Ether , but the transferring speed is not enough. 50MByte takes 1 minutes.
I changed the network cable to see if network is no problem.
the result is same.
I suspect that ServerA's performance is not so good.
this ServerA is an appliance server, therefore I don't know what kind of CPU or memory are used.
In case of copy and paste data between folderA and folderB on the serverA,
50MB takes 2 minutes. ( it takes double time than network)
My question is ,
1)the reason of low data transferring speed is RAID1 ?( ServerA is Raid1)
If I change the Raid1 to Raid5, can I expect it is improved ?
2) Are there any possibility that RAID card is bottle neck ?
or SATA disk is bottle neck ? or
low performance CPU ?
which parts of server should be suspected as bottle neck ?