Read, Write, And Cache Policy Supported By The PERC 5/E And PERC 6 Controllers

Table 40. Read, Write, and Cache Policy Supported by the PERC 5/E and PERC 6/ Controllers
Read, Write, and Cache Policy PERC 5/E PERC 5/I PERC 6/E PERC 6/I PERC 6/I Modular
Cache settings YesYesYesYesYes
Read Policy YesYesYesYesYes
Read Ahead (Enabled) YesYesYesYesYes
Adaptive Read Ahead YesYesYesYesYes
No Read Ahead (Disabled) YesYesYesYesYes
Write Policy YesYesYesYesYes
Write Back (Enabled) YesYesYesYesYes
Write Through (Disabled) YesYesYesYesYes
Force Write Back (Enabled Always) YesYesYesYesYes
Write Cache Enabled Protected NoNoNoNoNo
Cache Policy NoNoNoNoNo
Disk Cache Policy YesYesYesYesYes
Cache I/O NoNoNoNoNo
Direct I/O NoNoNoNoNo