I purchased the diskless EX4 and 4, 3TB WD REDs for my setup.
Writes are borderline slow for a gigabit connected NAS, at 25 MB/sec. This isn’t that big of a deal for me.
The issue I have is my reads are about 10-12 MB/sec…which is extremely slow. I read the reviews on this device and saw much better margins than this. I have noticed that the CPU gets pegged at 100% pretty frequently, the first night was constant at 100% with the ‘convert’ process taking up most of the CPU…that seems to have leveled out though.
Anyone seeing similar performance? Really thinking about taking this back.
I decided to build a $350 computer and ran FreeNAS. Using the WD Red drives, I was able to achieve near gigabit link saturation. The REDs in a RaidZ1 (Raid 5) achieve approx 100MB/s write, and about 90MB/s read. I do love the drives.
I will admit, FreeNAS isn’t for everyone as it is much more complex (and powerful), but the performance of this device just makes no sense.
If the performance stayed at 30 write/read, I probably would’ve been okay with that, but 10MB/s write is just unacceptable for $380 bucks.
Sending it back on Monday. Good luck to the rest of you.
The issue I have is my reads are about 10-12 MB/sec…which is extremely slow. I read the reviews on this device and saw much better margins than this. I have noticed that the CPU gets pegged at 100% pretty frequently, the first night was constant at 100% with the ‘convert’ process taking up most of the CPU…that seems to have leveled out though.
What the heck is Convert process doing? (I have everything turned off!)
Against my better judgement I am continuing to load this thing and alas I am seeing my throughput starting to crawl and my first copy error. (unfortunatly I cleared it before writing down, not thinking for a moment) The “convert” process has the CPU pegged as this earlier user.
Does anyone know what the convert process is doing? (It shouldnt be converting anything. I have everything turned off. It is just a file server.)
That’s EXACTLY what mine looked like, for days, when I was having issues. There was literally no end in sight and I hadn’t move all that much over that would need to be converted. 8K photos or so in total and a bunch of data files.
So… that (and the unlzma process that was crushing the CPU) prompted me to remove, reset, and give it a second go.
I was ready to smash the unit until I saw it behaving the way I thought it should.
