Hitachi Compute Blade 500 Series - Page 290

Table 4-20 Guideline of initialization
Setting value Description
Always Write Back Write cache is valid.
Write Through Write cache is invalid.
Write Back with BBU Write cache is valid only when the cache backup module is
installed.
Note: In Write Policy, Write Back with BBU is supported only. If not,
write performance may be degraded.
– When selecting Write Through in the Default write setting, click Yes.
– When selecting Always Write Back in the Default write setting, click
Yes
.
– When selecting Write Back with BBU in the Default write setting, click
Yes.
4-80
MegaRAID WebBIOS for storage expansion blades
Hitachi Compute Blade 500 Series EFI User's Guide