NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Upgrading from 5x2TB to 4x8TB on Readynas Pro 6
Dear all, My current setup on the ReadyNas Pro 6 is: - 5x2TB in Raid 6 for volume DATA - 1x2TB in JBOD for volume SCRATCH I now have a pack of 4x8TB WD RED drives looking at me. At the same...
Equinox1 wrote:
My current setup on the ReadyNas Pro 6 is:
- 5x2TB in Raid 6 for volume DATA
- 1x2TB in JBOD for volume SCRATCH
What would be the right migration path for this unit? My prefered end state would be:
- 4x8TB in RAID 6 for /DATA
- 1x2TB for /SCRATCH
One option is to go with 4x8TB+2TB for the array with dual redundancy.
But since you are thinking you want to do a factory reset anyway, then maybe
- Export the scratch volume
- Power down and remove all disks (labeling them by slot).
- Do a factory default with 4x8TB and set it up as RAID-6
- Import the scratch volume
- Restore data from backup
But the current /DATA volume(5x2TB) is packed with the real 3,5TB of user data.....
If I do that, I lose the currenta /DATA volume.
Equinox1 wrote:
But the current /DATA volume(5x2TB) is packed with the real 3,5TB of user data.....
If I do that, I lose the currenta /DATA volume.If you want to do a factory reset, then you need to back up the data. Hence step 5.
If you don't want to do that, then you could simply go with 4x8TB+2TB for the current DATA volume (expanding it). Though I'd still recommend doing a backup before doing that.
With that process, you'd hot-swap the new 8 TB drives one at a time, waiting for resync. You'd then need to create a new 4x6TB RAID-6 group using the new space, and concatenate it with the existing 5x2TB RAID-6 group.
You'd end up with an 18 TB volume instead of 16 TB.
Excuse my ignorance here, but there isnt a lot of documentation on this: what the EXPORT volume command do?
Equinox1 wrote:
Excuse my ignorance here, but there isnt a lot of documentation on this: what the EXPORT volume command do?
The export would let you add the volume back later on (after the reset). Sandshark has more experience using it than I do.
Without the export, you'd need to recreate scratch and restore any data on it from backup.
Your current SCRATCH and a smallish USB drive can hold all the data for the backup. Using another volume in the NAS for backup isn't the safest, but it is the fastest, especially on a NAS with only USB2.
Alternately, you could
- Export SCRATCH
- Insert one 8TB drive and Create a new SCRATCH8TB JBOD
- Backup DATA to SCRATCH8TB (fastest via SSH, but RSYNC jobs can work with 127.0.0.1 as the "remote": address)
- Eject SCRATCH8TB
- Remove 2TB drives and insert 3 8TB's.
- Factory default (which is really automatic with all new drives) and create a RAID5
- Import SCRATCH8TB (just insert with power off and boot)
- Restore data from SCRATCH8TB to new DATA
- Destroy SCRATCH8TB
- Use drive that was SCRATCH8TB to add redundancy to DATA to get RAID6
- Insert and import SCRATCH.
If you save your configuration before starting the process, it will be easier to get back where you were by importing it. Just remember to re-install any apps before restoring the config backup. You can restore the apps anywhere after step 6.
Theoretically, you could also
- Remove one 2TB and let DATA be degraded (but still with one drive redundancy)
- Export SCRATCH (to insure it does not become the "primary" volume).
- Add two 8TB and make them DATA2
- Backup DATA to DATA2
- Uninstall any apps.
- Eject or destory DATA
- Add remaining 2 8TB and add them to DATA2 to get RAID6
- Rename any backup shares to the original names from DATA. Note that renaming DATA2 is quite a challenge (though I've done it), but should not be necessary, anyway.
- Re-install any apps.
- Insert and import SCRATCH
This theoretically retains you configuration through the whole process. The only issue with this plan is that I have run some tests and sometimes the home folders or apps folder isn't properly moved when you destroy or export the primary volume (what I call the one containing the home folders and apps) on which they reside. Note that even when home folder migration works, it does not migrate the data, so insure you backup includes that. Likewise, migration of the apps diectory does not migrate the apps themselves (thus the need for un-install and re-install). These are fixable via SSH, but it's a chore even for one versed in Linux, so it's best not to put yourself in that situation.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
