I am testing 2 Intel P3600 400 GB in RAID 0 as cache volumes on linux CentOS 7.
During a random write benchmark with iozone I notice frequent long pauses where NOTHING gets written to disk
Am I the only one seeing this?
Could you try http://www.iometer.org/doc/downloads.html Iometer and see if you get the same results?
How did you set up your RAID 0 ?
What type of RAID controller are you using?
Did you try these drive individually in order to check the results?
Here is how you can use Iometer:
Let us know the results.