Read, Write, Cache, and Disk Cache Policy supported by PERC hardware controllers
| Read, Write, and Cache Policy | PERC H965i Front/Adapter | PERC H965i MX |
|---|---|---|
| Cache settings | Yes | Yes |
| Read Policy | Yes | Yes |
| Read Ahead (Enabled) | Yes | Yes |
| Adaptive Read Ahead | No | No |
| No Read Ahead (Disabled) | Yes | Yes |
| Write Policy | Yes | Yes |
| Write Back (Enabled) | Yes | Yes |
| Write Through (Disabled) | Yes | Yes |
| Force Write Back (Enabled Always) | Yes | Yes |
| Write Cache Enabled Protected | No | No |
| Cache Policy | No | No |
| Disk Cache Policy | Yes | Yes |
| Cache I/O | No | No |
| Direct I/O | No | No |
| Read, Write, and Cache Policy | PERC 755 Front/Adapter | PERC H750 Adapter | PERC H755N Front | PERC H755 MX | PERC H355 Front/Adapter | PERC H350 Mini Monolithic/Mini Mono Low Profile |
|---|---|---|---|---|---|---|
| Cache settings | Yes | Yes | Yes | Yes | Yes | No |
| Read Policy | Yes | Yes | Yes | Yes | Yes | No |
| Read Ahead (Enabled) | Yes | Yes | Yes | Yes | Yes | No |
| Adaptive Read Ahead | No | No | No | No | No | No |
| No Read Ahead (Disabled) | Yes | Yes | Yes | Yes | Yes | Yes |
| Write Policy | Yes | Yes | Yes | Yes | Yes | No |
| Write Back (Enabled) | Yes | Yes | Yes | Yes | Yes | No |
| Write Through (Disabled) | Yes | Yes | Yes | Yes | Yes | Yes |
| Force Write Back (Enabled Always) | Yes | Yes | Yes | Yes | Yes | No |
| Write Cache Enabled Protected | No | No | No | No | No | No |
| Cache Policy | No | No | No | No | No | No |
| Disk Cache Policy | Yes | Yes | Yes | Yes | Yes | Yes |
| Cache I/O | No | No | No | No | No | No |
| Direct I/O | No | No | No | No | No | No |
| Read, Write, and Cache Policy | PERC H840 Adapter | PERC H745P MX | PERC H745P Front/Adapter | PERC H345 Front/Adapter | PERC H740P Adapter/ Mini Monolithic |
|---|---|---|---|---|---|
| Cache settings | Yes | Yes | Yes | Yes | Yes |
| Read Policy | Yes | Yes | Yes | Yes | Yes |
| Read Ahead (Enabled) | Yes | Yes | Yes | Yes | Yes |
| Adaptive Read Ahead | No | No | No | No | No |
| No Read Ahead (Disabled) | Yes | Yes | Yes | Yes | Yes |
| Write Policy | Yes | Yes | Yes | Yes | Yes |
| Write Back (Enabled) | Yes | Yes | Yes | Yes | Yes |
| Write Through (Disabled) | Yes | Yes | Yes | Yes | Yes |
| Force Write Back (Enabled Always) | Yes | Yes | Yes | Yes | Yes |
| Write Cache Enabled Protected | No | No | No | No | No |
| Cache Policy | No | No | No | No | No |
| Disk Cache Policy | Yes | Yes | Yes | Yes | Yes |
| Cache I/O | No | No | No | No | No |
| Direct I/O | No | No | No | No | No |
| Read, Write, and Cache Policy | PERC FD33xD/FD33xS | PERC H730P MX | PERC H730P Adapter/ Mini Monolithic/Mini Blades/Slim | PERC H730 Adapter/ Mini Monolithic/Mini Blades | PERC H330 Adapter/ Mini Monolithic/Mini Blades/Embedded | PERC H830 Adapter |
|---|---|---|---|---|---|---|
| Cache settings | Yes | Yes | Yes | Yes | No | Yes |
| Read Policy | Yes | Yes | Yes | Yes | No | Yes |
| Read Ahead (Enabled) | Yes | Yes | Yes | Yes | No | Yes |
| Adaptive Read Ahead | No | No | No | No | No | No |
| No Read Ahead (Disabled) | Yes | Yes | Yes | Yes | Yes | Yes |
| Write Policy | Yes | Yes | Yes | Yes | No | Yes |
| Write Back (Enabled) | Yes | Yes | Yes | Yes | No | Yes |
| Write Through (Disabled) | Yes | Yes | Yes | Yes | Yes | Yes |
| Force Write Back (Enabled Always) | Yes | Yes | Yes | Yes | No | Yes |
| Write Cache Enabled Protected | No | No | No | No | No | No |
| Cache Policy | No | No | No | No | No | No |
| Disk Cache Policy | Yes | Yes | Yes | Yes | Yes | Yes |
| Cache I/O | No | No | No | No | No | No |
| Direct I/O | No | No | No | No | No | No |