I use HD Sentinel as a erasing tool in my server with surface test function.
All HDs attached on a SAS/RAID card, such as AVAGO 9300-8i and Lenovo 430-8i.
I found some HD run speed low in write test, only a quarter of normal speed or less. Both SATA and SAS, 7.2K and 10K have this issue.
I don't change any default configuration.
May you help to find what cause this issue and how to slove it?