Problem Symptom
I like to replace HDDs in a RAID1 set that are still good with same size drives. RAID controller is Lenovo ServeRAID M5210 SAS/SATA Controller. What is the process for replacing aging RAID1 hard drives in the Lenovo server with the ServeRAID M5210 controller?
Follow the below suggestions to replace HDDs in the Lenovo ServeRAIDh M5210 controller.
Solution
Since there is a mirror there the array will be fine if one drive fails. If and when it does hot-swap it with a known good or new drive. For aging hardware, I suggest having same age same firmware level replacements whether new or used.
The procedure is the same as for a predictive failure disk:
Step 1: Go onto MegaRAID Storage Manager or ServerRAID Manager.
Step 2: Place the disk offline.
Step 3: Eject the HDD and put in the new one.
Step 4: Rebuild should be automatic but sometimes you have to set it as a global spare before it will rebuild.
Note: If it is an old server it will be using 512b disks so don’t try to use new 4K sectored ones. Try to use the same IBM/Lenovo part number.
