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Best solution
Western
Digital rates the WD5000AAKS at 126 MB/second (sustained)
(the number that really matters).
However, the speed at the outermost tracks will be a little faster.
The number that really matters is "buffer-to-disk".
Study these next graphs first, to see graphically why that rate drops a lot
from outermost to innermost tracks (amount of data is directly proportional
to track circumference, because modern HDDs strive to maintain the same
or similar recording density from outer to innermost tracks):
http://www.supremelaw.org/systems/io.tests/platter.tran...
So, here's what I would do:
(1) re-partition your Caviar Blue to have a relatively small primary
partition, e.g. 30GB; turn OFF the Indexing Service on that small partition;
re-partition the remainder as a dedicated data partition where you should
write routine drive images of your C: system partition;
(2) if you have the time and desire, reduce C: on your Caviar Black,
so the 2 primary partitions are identical in size (this, for system
redundancy);
but, remember to re-locate all private data files to a dedicated data
partition on the remainder of your Caviar Black;
(3) download and run the Contig freeware, to create a
perfectly
contiguous pagefile.sys on the Caviar Blue's primary partition:
http://technet.microsoft.com/en-us/sysinternals/bb89742...
size that file at 1.5 TIMES the total of amount of RAM in your system
(as a general rule of thumb) e.g. 6144000000 for 4,096 MB of RAM;
(4) move pagefile.sys from C: to that primary partition on your Caviar Blue:
you'll need to re-boot, of course.
Summary: the small primary partitions will be "short-stroked"
taking advantage of the fact that there is more binary data
on the outermost tracks and, hence, their data rate is
directly proportional to their circumference (read: fastest
at the outermost tracks). Also, all "paging" will occur
more or less in parallel to I/O being done on the Caviar Black.
With AHCI enabled, that logic should effectively "burst"
paging I/O to and from pagefile.sys, because logically sequential
sectors will also be physically contiguous as well, thus minimizing
movements of the HDD servo-mechanism's READ/WRITE armature.
MRFS