Drive Configuration
Manual No. 775029
2-45
Let’s start by selecting a RAID level for our logical drive.
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With the RAID Level definition field selected...
☞
Press the + or - key to find your desired RAID level,
OR
☞
Press Spacebar to display a box of available choices, use the
arrow key to select your desired RAID level, then press Enter
Next, we’ll select the write caching strategy for our logical drive.
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.
☞
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.
IF NO PREVIOUS LOGICAL DRIVES HAVE BEEN DEFINED, 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).
