Last weekend, I upgraded my NAS from 2 TB to 4 TB and it was all too easy. The NAS is a Buffalo LinkStation Duo but as the drives are mirrored, I only get half the total 2 TB capacity, i.e. 1 TB. I was getting pretty close to having the full terabyte of data on the unit, so I decided it was time for a storage upgrade. However, the last time I upgraded another model of NAS, it involved much chicanery and re-installing of firmwire via USB, so I proceed with trepidation.
Not so this time. It was mostly lots of waiting interspersed with a few minutes of activity, followed by first time success. Disappointingly little geekery was required.
Step 1. Buy a pair of SATA 2 TB hard-drive. The LinkStation already had Seagate drives installed, so I played it safe and bought some Seagate Barracuda drives. Wait a couple of days for drives to arrive in post…
Step 2. Backup the data from the NAS to an external USB drive. My favourite tool for this is rsync because it simply copies files (no archives or zip files) and you can stop and start the backup as you like. You can even keep using the NAS up until the last minute before running one final rsync to copy the latest changes over. Leave the backup to run overnight…
Step 3. Shutdown the LinkStation via the web interface.
Step 4. Remove hard drives, insert new ones.
Step 5. Power up the Linkstation and log on via the web interface.
Step 6. Format drives in turn. Configure as RAID 1. Wait for best part of a day while array synchronises….
Step 7. Restore data from external USB hard drive. Leave to run overnight….
Step 8. Job done!
It was pleasantly straightforward to upgrade the NAS and a big change from the last occasion I had to swap a disk. For sure it takes a couple of days to do the swap, but the time is spent shuffling data around, not actually working on the unit. Definitely a recommended upgrade.
[Disclosure: this is my personal NAS and not a review unit.]