On 2021-02-23 1:53 AM, Danilo Tomasoni wrote:
Thank you all for the suggestions, The OS is not windows, it's centos, a colleague thinks that even on linux defragmenting can improve performance about 2X because it keeps the data contiguous on disk.
You may want to check the filesystem you're using and read up on XFS vs EXT4.
FWIW we've had reasonable success with ZFS on Linux (look on github) binary drivers for centos 6 and, a bit less so: 7. With effectively RAID-10'ed HDDs and a regular SSD for read & write caching.
Either way, check with `df` first: if you're more than ~75% full, you need a bigger disk no matter what else you do.
Dima
