Drive Configuration
Manual No. 775029
2-31
If you are unfamiliar with the terms “Write Through” and “Write Back”
caching, please refer to the Glossary for a detailed definition.
In a nutshell, Write Back caching speeds write performance but risks loss of
data in the cache buffer should power fail. Use Write Back only if you have a
battery backup unit (BBU) or uninterruptable power supply (UPS) installed
to preserve data in the cache.
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Use the right arrow key to select the Write Cache definition
field, then...
☞
Press the + or - key to find your desired caching method
(“Thru” for Write Through, “Back” for Write Back),
OR
☞
Press Spacebar to display a box of available choices, use the
arrow key to select your desired write caching method, then
press Enter.
Next, we’ll set the stripe size for this logical drive and all subsequent logical
drives in the disk array.
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Note
If you’ve previously set up any logical drives on this
controller, the Stripe Size(KB) definition field will
have already been set for the controller. Therefore, it
will be a READ ONLY field at this time (displayed in
black).
If you are unfamiliar with the term “Stripe Size” please refer to the Glossary
for a detailed definition.
☛
Note
If this is the first logical drive on this controller, the
stripe size you select for the first logical drive will be
fixed for all subsequent logical drives in all arrays on
the controller. Available stripe sizes are 8, 16, 32, and
64.
