Have any of you noticed how many unused DVD and CD blanks
have piled up in your spare parts?
Disk-to-disk backups have become highly desirable, chiefly
because of the huge leaps in HDD capacity in recent years:
1TB HDDs are now commonplace, and cheap!
Even if one has an older PCI-E motherboard, e.g. Intel D915GAV
with x1 PCI-E Gen1 slots, inexpensive controllers are available
that will support modest RAID arrays with SATA/3G HDDs
e.g. Highpoint RocketRAID 2300:http://www.newegg.com/Product/Product.aspx?Item=N82E16816115029&Tpk=N82E16816115029
(yes, I'm a Highpoint "fan boy"
Granted, Gen1 x1 slots top out at 250 MB/second, but that's
still plenty of bandwidth for a single SATA/3G HDD, or
just enough for a pair configured in a RAID 0 array.
We demoted an older ASUS motherboard with 875 chipset
and Intel 3.2 GHz Pentium 4 to backup storage duty,
and it works fine: we only turn it ON to do backups,
then we turn it OFF.
This schedule, of course, should prolong its useful life:
and, after all, digital data is digital data (0's and 1's), regardless
of where it resides. And, when OFF a PC can NOT be infected
with a virus or any other malware.
Legacy PCI slots still work fine with Gigabit LAN cards
(32 bits @ 33 MHz = 1,056 Megabits per second ~= 1 GHz)
and copying across an XP/Pro LAN is as easy as running XCOPY:
xcopy folder Z:\folder /s/e/v/d
Z = remote partition, properly shared
Want help? then:
And, as one post wisely observed above,
disk I/O does not require a TON of CPU power.