RAID 5 SAS Manual Disk replacement procedure

Dell T320 server with PERC H710 controller

One RAID 5 virtual  total 4 300GB Hot Swappable Drives

Running Windows 2008R2 64 no spare drive defined

Access to server files very slow especially during saving files to a shared directory on the server.

Event log full of SCSI sense errors repeating every couple seconds

OpenManage Administrator: the virtual drive has a green health check mark so as each of the 4 Physical drives.

OpenManage log messages:

SCSI sense key: 3, Sense code 11, Sense qualifier: 0　 Physical disk　 0:1:2

No full backup for 3 days, manual backups to external devices very slow.

　

Power down the server

Disconnected Drive #3

Power server on

Drive #3 reporting as missing

Server is running with drive array degraded but in full  read/write access speed

　

Power down server

Insert a new Scsi drive slot #3

Start OenManager server administrator

The new drive #3 state is ready, all other 3 drives state: OnLine

Select Virtual Disk

Disk state: degraded available tasks: delete, assign/un-assign dedicated hot spare, blink/unblink, change policy, "replace member disk"

Server back to normal speed and full backup finally completed.

　

At this point I am ready to power the server down and reinsert the old drive in slot #3 and attempt to take drive #3 "off line" manually since the drive does not fail.

Is Hot Swap supported on the T320 server with a PERC710 latest firmware updated?

Using best practices what is the correct procedure to replace this member drive

Any help will be greatly appreciated