Hello everyone,
Trying to find bottleneck for slow application throughput.
Have done a lot of testing, but found 1 possible bottleneck.

Setup : SLES12 Dom0, with OES11 server as DOMU.
OES11 has a Raid5 as block device, dedicated for NSS.
On the NSS are several volumes.
Now doing TSATest on the volumes :
Application : 5150 MB/min
But Mail ( groupwise 2012, PO etc. ) doing 800 MB/min only ??

Both volumes have a 4kb blocksize.
Can someone explain the difference ?