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Upgrading all Drives in ReadyNas 2304 with RAID-6
I have a couple RR2304 units, both in RAID 6 with 4x8TB storage. One is primary and the other is backup. I am about to deploy a third, off-site NAS to accomplish full redundancy, local, and remote ...
UPDATE: I completed this project and the Flex-RAID volume expanded automatically after the last added drive completed the RAID sync.
TheDurb wrote:
So, would it be possible to simply hot-swap and re-sync the RAID, one drive at a time, on my current unit? Will the volume expand to the new capacity on its own once all four RAID syncs have completed? Yes, I know this will take a while, but it saves my time, headache, and potential client issues that could be encountered by just rebuilding the NAS.
It is possible, but it would be faster and safer to install all the new disks on the third NAS, configure it like the primary (other than the host name) and copy the data to it. Then power down both the third NAS and the primary NAS, and exchange the disks. Power up the two NAS, and change the host name on the primary to what it should be.
The bulk of the time would be copying the data onto the third NAS, which you'd need to do anyway. Volume sync time would be faster, since the volume is only synced once. It's safer because there is no loss of service if you run into disk failures during the process.
StephenB wrote:
it would be faster and safer to install all the new disks on the third NAS, configure it like the primary (other than the host name) and copy the data to it.
That would be a great idea if it was another 2304 I was deploying. But Netgear doesn't see a future in that product line, so I am not. I also do not want to split by 2304s to different sites. So, the 2304s stay in their current deployment, and the new Synology gets the new load.
Then assuming you have XRAID enabled, your plan will work. Note that this will likely save your time, but the overall time will typically be longer than backing up, starting over with all new drives, and restoring data. With RAID6, at least it won't start off by creating a RAID1 of the additional space once you have two new drives installed, then a RAID5 when you have three, so you'll save that time. It will also put a strain on your older drives, so a drive failure during one of the syncs is a possibility. So, start replacements with the oldest or any that is showing any SMART issues.
Sandshark wrote:Then assuming you have XRAID enabled, your plan will work. Note that this will likely save your time, but the overall time will typically be longer than backing up, starting over with all new drives, and restoring data. With RAID6, at least it won't start off by creating a RAID1 of the additional space once you have two new drives installed, then a RAID5 when you have three, so you'll save that time. It will also put a strain on your older drives, so a drive failure during one of the syncs is a possibility. So, start replacements with the oldest or any that is showing any SMART issues.
I do NOT have XRAID enabled. Will the RAID6 volume not auto expand with a single disk replacement plan? Yes, I know it will take "longer," but I am good with that to keep the production system up and running.
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