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Pros: It has been a steady performer for 4+ years, but it's mounted right next to the case inlet fan, so it's at 39 degrees C at idle. Keep your drives cool, and they will last a lot longer!
Price --> 1 TB for $65... was inexpensive at the time. Still a good deal today :)
Cons: Average 89 mb/sec on HD Tune 5.5 - slower than many HD drives on the market today.
Other Thoughts: Bought from Newegg in June 2009... drive is still working today! I plan on switching to a SSD and relegate this to a backup drive.READ FULL REVIEW
This review is from: ZyXEL NSA320 Diskless System 2-Bay Power Media Server
Pros: Print server, hackable - get into Linux shell, 3 USB ports, web server, ftp server, mySQL, Python, DropBox integration, auto-sync with another NSA, JBOD (two volume) or JBOD (combined volume), RAID 0 & 1.
CPU is as fast as a Atom N450. If you know Linux, you will have a blast playing with essentially a cheap Linux box.
Cons: RAID 0 and 1 are slower than JBOD (1 drive). I ran many benchmarks and unbelievably the RAID-1 was considerably slower than JBOD with 1 drive. It's likely the RAID is implemented in software, and the CPU can't handle it.
Other Thoughts: Here are my figures transferring a 3.8Gb ISO file:
JBOD RAID-0 RAID-1
Read 1:23 1:30 1:53
Write 1:17 1:18 1:30
Here are figures for transferring 1.0 GB of Windows System32 files (4077 individual files)
JBOD RAID-0 RAID-1
Read 4:00 4:18 4:26
Write 1:12 3:31 1:48
It's amazing that the RAID-0 is the slowest in Writes. It might be possible that the NAS caching algorithm is not optimized to write to 2 drives at once. I also notice in using RAID-1, the mirror synching occurs *after* the data is written to the 1st drive.
For the money, this level of performance is tolerable. But if you are seeking a fast server replacement, look elsewhere.
Pros: very quiet, faster than earlier generation Caviar Blacks
Cons: Thailand - made drives are about 10% faster. These have serial numbers starting with WCC. Mine came with Green label.
Avoid WMC made in Mayalsia and have all black lettering on label.
Other Thoughts: These are my HD Tune stats on empty drives
Min 67.6 Max 154.2 Avg 114.4 mb/sec
Min 89.1 Max 154.0 Avg 124.8 mb/sec