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Hot Swap RAID5 4TB disks with 10TB
Hello Everyone,
I have a RN214 4-Bay configured in RAID5.
- Disk1: Seagate IronWolf 6TB: Purchased 2020
- Disk2: Seagate IronWolf 6TB: Purchased 2020
- Disk3: Seagate IronWolf 4TB: Purchased 2016
- Disk4: Seagate IronWolf 4TB: Purchased 2016
After completion of the monthly Disk Test, I received this error:
"Detected increasing uncorrectable error count: [16] on disk 3 (Internal) [ST4000VN008-2DR166, WDH0VBLG] 16 times in the past 30 days. This condition often indicates an impending failure. Be prepared to replace this disk to maintain data redundancy."
My Question: What are my steps to "Hot Swap" Disk3 & Disk4 with two Seagate IronWolf 10TB drives?
I appreciate any insights you can offer.
-Alex
We do recommend making sure you have a backup, as the RAID array isn't redundant during resyncs, and the process does stress the disks.
The process is simple - hot swap disk 3 first, as it is showing signs of failure. The array will then resync in two steps (and the second step should expand your volume by 2 TB).
After the resync, hot swap disk 4. That will resync in three steps - the second step will expand your volume by another 2 TB, and the third will expand it by 4 TB.
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We do recommend making sure you have a backup, as the RAID array isn't redundant during resyncs, and the process does stress the disks.
The process is simple - hot swap disk 3 first, as it is showing signs of failure. The array will then resync in two steps (and the second step should expand your volume by 2 TB).
After the resync, hot swap disk 4. That will resync in three steps - the second step will expand your volume by another 2 TB, and the third will expand it by 4 TB.
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