[ale] [OT] spec'ing drives for a NAS

[Doug Hall]

I'm happy with the two Western Digital Caviar Blacks that I bought for
my Diskstation NAS. They're "enterprise" drives, which was probably
overkill on my behalf. One started showing a SMART error, and WD
replaced it with absolutely no hassle. The blue drives should be fine,
too, but IMO green drives weren't made for a device that does backups,
or any similar task that's disk-intensive.