Dell EMC Server Administrator Storage Management 9.1.2

Read Write Cache And Disk Cache Policy Supported By The PERC Software RAID Controllers

Table 1. Read, Write, and Cache Policy Supported by the PERC S140 Controllers
Read, Write, and Cache Policy PERC S140
Cache settings Yes
Read Policy Yes
Read Ahead (Enabled) Yes
No Read Ahead (Disabled) Yes
Write Policy Yes
Write Back (Enabled) Yes
Write Through (Disabled) Yes
Force Write Back (Enabled Always) No
Write Cache Enabled Protected No
Cache Policy No
Disk Cache Policy No
Cache I/O No
Direct I/O No