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Failed disk on readynas RN104 JBOD
Hello, I've a readynas RN104 with 4 disks (3Tb, 1Tb, 2Tb and 1Tb). All of these drives are using the JBOD system to have only one volume. I'm receiving alerts to my e-mail telling me that the 4th...
Ok. This is in fact RAID-0, with a total volume capacity of 7 TB.
This is a very fragile mode - if any disk fails you lose all the data in the volume. Anyone using this mode needs to be very careful about backups.
So you should definitely back up the whole volume right away. I suggest getting a new 3 TB drive, and creating a new XRAID volume. You'll lose a little capacity, but disk replacement will be easier in the future.
And keep your backups up to date.
Caso wrote:
If I remove the sick drive, will I only lose the data of this drive or the whole file system integrity will be corrupted?
As noted above, you lose everything.
Caso wrote:
Hello,
I've a readynas RN104 with 4 disks (3Tb, 1Tb, 2Tb and 1Tb). All of these drives are using the JBOD system to have only one volume.
JBOD means you have four volumes (one for each drive). Can you confirm that is the case?
Because if you have a single 3.7 TB data volume, then you actually are running XRAID or RAID-5. How you handle the failing disk depends on what mode you are actually using.
If you are running XRAID, then the new disk could be 1 TB or 3 TB. With 3 TB the volume size would grow to 5.4 TB.
Caso wrote:
Is the backup of the whole volume the only solution for keeping all my data safe?
Yes, and I do recommend that you back up at least the critical data now.
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