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Forum Discussion
Readybear
May 21, 2019Aspirant
Is exchanging two disks within an X-RAID2 array safe?
Hi there, first post on the Netgear Forum.
After a couple of years of light use my ReadyNAS Ultra 4 tells me there's a problem with disk 1 and I've lost redundancy. I have a suspicion that the...
Sandshark
May 22, 2019Sensei - Experienced User
Assume you have XRAID ro RAID5, then yes, you lose the entire array if you emove two drives.
The better way to see if the NAS bays are OK is to power down, remove all drives (marking the order so they can be returned to the right slots), then use a scratch drive to test each slot. Put the scratch drive in slot one, power up, and let it build a volume. Then power down, swich the drive to bay 2, and power up to see if it boots. Repeat going to the remaining slots.
If all slots work, then it's time to test the drives with a PC and manufacturer's tools (such as Seatools) and see if you have more than one bad drive. You can use a USB to SATA cable or dock for that, or open the PC and use an internal SATA connection. Just don't run a test that zeros the drive, or you'll loose your volume.
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