Raid
8.Are there any simple optimization
tips when starting to use RAID?
The first question is to consider is which RAID type to
implement, since this will have direct bearing on the number
of drives required. Next, Stripe size is how much data is
written to the array in one I/O operation. The stripe size
is defined when the array is created, and can't be changed
'on the fly' without redefining the array and restoring
the data from a backup. A larger stripe size will give better
performance for large sequential file accesses, such as
video playback or large file transfers, by moving larger
amounts of data per I/O operation. A small stripe size would
require more I/O requests for the same amount of data transfer.
If file transfers are typically small, a smaller stripe
size is more efficient.
