Will defragmenting RAID intel rms3cc080 drives help with performance degradation?

Question

RAID

There is a server with Hyper-V 2012
There is RAID 1 on the intel rms3cc080 controller of 4 disks. With an increase in the number of VMs, the speed of other VMs has fallen. Each VM is from 50 GB, there are copies and 1 TB each.
In the RAID controller log, only entries of the type periodically appear:
LOCALIZED MESSAGE = Controller ID: 0 Patrol Read aborted on PD: Port 0 - 3:0:0
LOCALIZED MESSAGE = Controller ID: 0 Patrol Read aborted on PD: Port 0 - 3:0 :2
LOCALIZED MESSAGE = Controller ID: 0 Patrol Read aborted on PD: Port 0 - 3:0:3
LOCALIZED MESSAGE = Controller ID: 0 Patrol Read aborted on PD: Port 0 - 3:0:1
LOCALIZED MESSAGE = Controller ID: 0 Consistency Check started on VD: 0
Google says that there is nothing wrong with such messages.
The Windows defragmentation tool says that 40% is fragmented and defragmentation is required.
To be honest, I'm very afraid to run a Windows defragmentation, because. There is a suspicion that the raid controller does its own defragmentation.
If all the same to start screw defragmentation, all spot-check will not lay down?

Answer 1

It will help, but not essential. During the process, suffer. Reid will not collapse.
My advice is to schedule maintenance and raid 10.