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Forum Discussion
ReadyNAS RN-314 Upgrade
I have a ReadyNAS 314, all drives are configured as JOBD RAID1 First off, will the Seagate 18TB ST18000NM000J work ok in this NAS unit? I would like to replace a 10TB drive with 18TB, do I just ba...
You can't replace a single drive in a JBOD without destroying the volume and re-creating with the new one installed. That's one of the reasons JBOD is not a very good choice; the other one being what happens when a drive fails. The data for a JBOD volume is spread over all drives as if it were a single drive, so it's all or nothing when it comes to a valid volume. If you lose (by failure or intentional removal/replacement) one drive, you lose the entire volume. Given the fragile nature of a JBOD volume, I hope you already have a backup solution. If so, destroy the volume, replace the drive, format the replacement, re-create the volume, and restore from backup.
So destroy the volume, replace the drive, format the replacement, re-create the volume and doing this wont effect the other drives?
I'm not really interested too much in recovery but more in storage as I have 4 16TB drives in my computer and 4 10TB drives in the NAS and all I do is sync between the two with data that has changed, so if I was to lose the data on one device it's still on the other vice versa.
so for single disk usage in a NAS unit
Not sure why it shows RAID1 on the first disk and JOBD type. Is this a correct setup for single disk use? (image attached)
From the screenshot, it looks like you have 4 JBOD volumes, one for each drive.
claynz wrote:
So destroy the volume, replace the drive, format the replacement, re-create the volume and doing this wont effect the other drives?
Yes, that's the process. The other drives aren't affected. You will need to recreate shares, and any backup jobs that use them. Then restore data.
If you have apps installed: One of the volumes is hosting the /apps folder. If that's the volume you are upgrading, then uninstall the apps before destroying the volume, and reinstall them afterwards. (/apps will end up being hosted on a different volume).
Yes, it's a lot easier with each drive being a separate JBOD. When I read your first post, I erroneously thought you had all the drives in a single JBOD.
Apps would be installed on the first drive by default wouldn't it? how would I know?
Whatever drive they are on, the .apps directory will be re-created another one when you destroy that volume. That's why it's so important to uninstall apps first. When the Apps folder is re-create on another drive, the contents aren't moved.
If you started with just one drive and added another, the apps would be on the first one. If you use SMB to access the NAS and use the admin credentials, you should be able to see where .apps is located (you may need to turn on "show hidden files" in Windows ).
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