RAID NAS drive

[Senior Paper Monitor]

I use a synology RAID NAS drive.

Brilliant device - currently with 2 x 500 Gb server quality hard disks, approaching 66% full.

Some time next year I will need to upgrade the volume available.

Can I expect to simply:

1) Turn off - swap one for a new terrabyte (or more) disk

2) Turn on - writes the new disk as a mirror copy

3) Turn off - swap other disk to a new terrabyte (or more) disk

4) Turn on - writes that disk as mirror copy of the previously newly written disk

5) retire to pub and bask in the glory of being an IT guru

... or is there a bit more to it ?

We are (of course) backed up off site (nightly) so my other option would be to remove both and swap to new drives, then download from the back up I assume ?

Any recommendations on best approach ?

[le Pingouin]

I Googled "synology replacing raid drive" and came up with this:

https://www.synology.com/en-global/knowledgebase/DSM/help/DSM/StorageManager/volume_diskgroup_expand_replace_disk

[skylimey]

I have performed similar magic with 2 Netgear ReadyNas 4 drive Bays. The first time I rather foolishly swapped the drive without turning the box off. That turned out badly... The second time I turned the box off, replaced the drive (repeat 4 times) and all was well.

[Senior Paper Monitor]

Thank you gentlemen - looks like it should be as easy as I hoped

[jimjim1]

Or instead it might go like this -

1) Turn off - swap one for a new terabyte (or more) disk

2) Turn on - writes the old disk as a blank mirror copy of the new disk

3) Turn off - swap other disk to a new terabyte (or more) disk

4) Turn on - writes that disk as mirror copy of the recently written blank disk

5) retire to pub and ask about restoring from backup


Sorry, I have no solutions, only questions:-)

I have always been afraid of disk mirroring (etc...)

[Senior Paper Monitor]

An interesting point jimjim - indeed, how does it know what it's supposed to do ?

Am on the forum site linked by Le Pingouin making further enquiries - fortunately I have plenty of time to investigate before I make a complete hash of it