I have a LinkStation Pro Duo LS-WV2.0TL/R1 that is 4 years and 4 months old. It's been a good unit. I've only used it with the two 1TB drives that were included with it, and ran them in RAID 1 (effectively giving me 1 TB of storage). For a long time (like, measured in years), one of the two drives under System > Storage read as "error." There were no issues in the real world, so I let it go for a long time. Not long ago, I decided to try to fix by rebuilding the array. That was successful; the error went away. However, after a short time the "error" status for drive 2 returns. Again, it's not causing me any real-world problems. But now I'm also experiencing a second issue with the unit. It just seems to "die," or literally cut off, with no lights showing on the unit. I can fix by simply unplugging and allowing it to reboot.
I've probably rebuilt the array 3 times now, and the reboot has been necessary about 3 times as well. It's just used as a home media server, so it wouldn't be a tragedy if I lost data, but I do want to expand to start putting photos and other stuff on it.
So my question is: I'm wondering if these two issues are related, and if I should buy a replacement drive, or if I should just go ahead and replace the whole unit. I had planned on upgrading to something a little spiffier at the end of this year (when the unit turns 5 years old) anyway, and I hate to spend money on a hard drive if that won't fix the issue. My main use for NAS is as a Plex server, and have been thinking about upgrading to a unit that can run Plex rather than running Plex on my Mac.
Just looking for any input. Thanks!