Hitachi Compute Blade 2000 User Manual page 320

Display item
A RAID Level RAID level
Status Status of the disk array
Strip Size Stripe size of the disk array
Capacity Size of the disk array
B Access Access mode
C Read Read policy
D Disk Cache Setting the cache installed
in a physical hard disk
E I/O Setting the read-cache
operation
F Disable BGI Setting the background
initializing
G Default Write*1 Setting the write cache
*1 Default Write supports setting in Always Write Back only when the system equipment is
connected to UPS. Even so, set Write through when installing OS. Otherwise, the installation
may not finish properly. Do not set Write Back with BBU.
What is displayed
[RW (reading and writing)] /
Read Only (reading only)
Blocked (access denied)
[Normal (no advance reading)] /
(always advance reading)
(advance reading only in the event of
sequential access)
[Disable (cache: not used)] /
[Enable (cache: used)
No change (based on the hard disk setting)]
[Direct (reading from the cache at a cache
hit)] /
[Cached (always reading from the cache)]
No (background initializing valid) /
(background initializing invalid)]
[Write Through (write cache invalid)] /
Always Write Back (write-cache valid) /
Write Back with BBU (Write cache is valid
only when the battery is installed.)
269
Setting/display value **
-
-
-
-
/
Ahead
/ Adaptive
/
[Yes