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Need to add capacity to full RN104 consisting of 2 JBOD volumes.
Searched around and couldn't quite find a definitive answer (also saw a lot of people say this too). Here's my setup and what I'm wanting to do.
Current:
2x3TB (Bays 1 and 2) in 1st JBOD Volu...
If you use the home folders, you do need to back up the home folder contents.
The system ought to migrate them to "new", but that's another behavior I wouldn't depend on myself. You are going down a path that isn't well-trodden (and I suspect not well tested by Netgear).
WiredRacing wrote:
2.5) Can I rename it now so that when I import it it'll come back in as "replicated" or once it's exported it's "gone" until reinstalled?
No. The volume will disappear when you export it. And you can't rename volumes in the Web UI,
WiredRacing wrote:
6) Copy the contents of the "Primary" to the "New" Volume (I suspect it's ideal to do this via SSH rather than the browser-based ReadyNAS management tool)
7) Delete the "Primary" volume
8) Recreate the old "Primary" volume shares, on the "New" volume.
9) Remove the Primary Drives
10) Move the 10TB Drive to Bay 1 (no problems moving active volumes betweens bays I'm assuming?)
The order here is wrong. You need to
6) Create new shares (with unique names) on "new" - relating the names to the shares on "primary"
7) copy the data in the shares to "new"
8) Destroy the primary volume
9) Power Down
10) Remove the Primary Drives and move "new" to slot one
11) Power Up
12) Rename the shares on "new' to match the original names on "primary".
As I said earlier, you can't rename "new", so pick a name you can live with for the life of the volume.
As noted above, you need to create new shares on "New" - with names that are unique across all volumes. After that you can either copy with SSH or with Web UI backup jobs. You definitely don't want to create the shares with ssh. They are BTRFS subvolumes - not ordinary folders. And you don't want to copy hidden folders on "primary" as they are managed by the ReadyNAS application software. Don't try to copy snapshots either.
Be careful with ssh - you could easily break the Readynas application software if you try to do this manually. It's safer to use backup jobs to copy the data (one for each share), and the speed will be the same.
WiredRacing wrote:
11) Install one of the 3TB drives from Primary into Bay 2
12) Install the "Replicated" drives back into Bay 3 and 4. If 2.5 above isn't possible, does it ask me to choose a new name for it? Changing it's name is fine.
13) Create another JBOD volume "Extra" with the 3TB drive in Bay 2.
I haven't played much with export. I did it once accidentally a long time ago, and if I remember correctly I ended up losing the volume. Sandshark has used it more (and more recently), so hopefully he will chime in .
But I think these steps aren't quite right. I suggest
11) Power down (again)
12) install the "replicate" disks (preserving slot order).
13) power up, and see if it mounts. The name can't be changed.
The power down might not be needed. Netgear doesn't say - the kb article just says that "The volume will be exported for cold import on another ReadyNAS" without explanation. But I think it likely is needed. Although you could potentially do this step when the NAS was powered down before, I wouldn't do that either. I think the risk is less if you don't combine these steps.
"Replicate" might not remount - since you aren't importing it to another ReadyNAS, you are attempting to import it to the same ReadyNAS (with the same OS partition and configuration). That is what I tried to do years ago when I accidentally exported - and that didn't work for me. If it doesn't remount for you either, then you will need to get advice here or from paid support. Or create a new volume and accept the data loss.
If it does remount:
14) hot insert the 3 TB drive into slot 2
15) format it via the volume page
16) create the "extra" volume
Then if the home folders are gone (and you use them), you need to connect to the NAS with SMB using each user's credentials. That should recreate the home folders. As you do that, restore the contents of each home folder with drag-and-drop using a backup.,
This is what the "Export" function is for, but I wouldn't trust it to data that's not backed up. And for it to later be re-imported, you cannot create a new volume with the same name. You may have to go back and re-establish user privilages in files after the import. (I know you do if you move the volume between NASes, I've not tried it returning to the same NAS.)
Exporting "replicate", creating a new 10 TB jbod, migrating data to it, destroying "primary", and then adding "replicate" back is one possible path. When you're done, the 10 TB volume wouldn't be called "primary" (since you can't have duplicate volume names). If you attempt this, you should also uninstall your apps first, and then reinstall them when you are finished.
But I agree with Sandshark that you shouldn't attempt this without a backup. And with your setup (still jbod when you are done) you have a higher risk of data loss than you'd have with redundant RAID.
A better approach is to invest in USB backup drive(s), and back up both volumes. Then you could rebuild the NAS. Consider going with a 2x3TB RAID-1 volume "replicate" and leaving slot 2 empty. Then later on you can either convert the 10 TB volume to RAID-1, or expand "replicate" to 3x3TB RAID-5.
I get that this would add a couple hundred dollars to the project. But data recovery will cost at least that much (and success is not guaranteed). You are better off spending the money now.
Okay so let me see if I get this straight (ignoring the ideal to backup to USB or convert the 'replicated' volume as a 2 disk RAID-1 instead of the less protective 2disk JBOD volume):
1) Uninstall apps (not sure I'm using any actually)
2) Export "Replicated" in the readynas management tool
2.5) Can I rename it now so that when I import it it'll come back in as "replicated" or once it's exported it's "gone" until reinstalled?
3) Pull the "Replicated" drives (Hot I'm assuming is okay after the export)
4) Install the 10TB Drive
5) Create a Volume, called "New" with the 10TB Drive.
6) Copy the contents of the "Primary" to the "New" Volume (I suspect it's ideal to do this via SSH rather than the browser-based ReadyNAS management tool)
7) Delete the "Primary" volume
8) Recreate the old "Primary" volume shares, on the "New" volume.
9) Remove the Primary Drives
10) Move the 10TB Drive to Bay 1 (no problems moving active volumes betweens bays I'm assuming?)
11) Install one of the 3TB drives from Primary into Bay 2
12) Install the "Replicated" drives back into Bay 3 and 4. If 2.5 above isn't possible, does it ask me to choose a new name for it? Changing it's name is fine.
13) Create another JBOD volume "Extra" with the 3TB drive in Bay 2.
14) Reinstall any apps.
15) Done.
Other than potential risk of data loss (the most important data is on primary and I'm not touching that volume until the data has been copied to the "New" volume), does (should) that task list work?
If you use the home folders, you do need to back up the home folder contents.
The system ought to migrate them to "new", but that's another behavior I wouldn't depend on myself. You are going down a path that isn't well-trodden (and I suspect not well tested by Netgear).
WiredRacing wrote:
2.5) Can I rename it now so that when I import it it'll come back in as "replicated" or once it's exported it's "gone" until reinstalled?
No. The volume will disappear when you export it. And you can't rename volumes in the Web UI,
WiredRacing wrote:
6) Copy the contents of the "Primary" to the "New" Volume (I suspect it's ideal to do this via SSH rather than the browser-based ReadyNAS management tool)
7) Delete the "Primary" volume
8) Recreate the old "Primary" volume shares, on the "New" volume.
9) Remove the Primary Drives
10) Move the 10TB Drive to Bay 1 (no problems moving active volumes betweens bays I'm assuming?)
The order here is wrong. You need to
6) Create new shares (with unique names) on "new" - relating the names to the shares on "primary"
7) copy the data in the shares to "new"
8) Destroy the primary volume
9) Power Down
10) Remove the Primary Drives and move "new" to slot one
11) Power Up
12) Rename the shares on "new' to match the original names on "primary".
As I said earlier, you can't rename "new", so pick a name you can live with for the life of the volume.
As noted above, you need to create new shares on "New" - with names that are unique across all volumes. After that you can either copy with SSH or with Web UI backup jobs. You definitely don't want to create the shares with ssh. They are BTRFS subvolumes - not ordinary folders. And you don't want to copy hidden folders on "primary" as they are managed by the ReadyNAS application software. Don't try to copy snapshots either.
Be careful with ssh - you could easily break the Readynas application software if you try to do this manually. It's safer to use backup jobs to copy the data (one for each share), and the speed will be the same.
WiredRacing wrote:
11) Install one of the 3TB drives from Primary into Bay 2
12) Install the "Replicated" drives back into Bay 3 and 4. If 2.5 above isn't possible, does it ask me to choose a new name for it? Changing it's name is fine.
13) Create another JBOD volume "Extra" with the 3TB drive in Bay 2.
I haven't played much with export. I did it once accidentally a long time ago, and if I remember correctly I ended up losing the volume. Sandshark has used it more (and more recently), so hopefully he will chime in .
But I think these steps aren't quite right. I suggest
11) Power down (again)
12) install the "replicate" disks (preserving slot order).
13) power up, and see if it mounts. The name can't be changed.
The power down might not be needed. Netgear doesn't say - the kb article just says that "The volume will be exported for cold import on another ReadyNAS" without explanation. But I think it likely is needed. Although you could potentially do this step when the NAS was powered down before, I wouldn't do that either. I think the risk is less if you don't combine these steps.
"Replicate" might not remount - since you aren't importing it to another ReadyNAS, you are attempting to import it to the same ReadyNAS (with the same OS partition and configuration). That is what I tried to do years ago when I accidentally exported - and that didn't work for me. If it doesn't remount for you either, then you will need to get advice here or from paid support. Or create a new volume and accept the data loss.
If it does remount:
14) hot insert the 3 TB drive into slot 2
15) format it via the volume page
16) create the "extra" volume
Then if the home folders are gone (and you use them), you need to connect to the NAS with SMB using each user's credentials. That should recreate the home folders. As you do that, restore the contents of each home folder with drag-and-drop using a backup.,
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