Users Guide

Table Of Contents
Controller
operating mode
Enhanced HBA
mode (H740,
H745, H745P MX)
RAID mode (H740,
H745)
RAID mode (H745P MX,
H840)
RAID mode (H345)
reset, and when
unconfigured disks
are hot-inserted.
Write back-caching Yes (VDs only) Yes Yes No
Key management
support (see
Security key and
RAID management)
LKM SEKM and LKM LKM No
Patrol read Yes (VDs only) Yes Yes Yes (VDs only)
Non-RAID disk
A non-RAID disk is a single disk that is presented and accessible to the host for I/O. It is not a RAID volume. The only supported
cache policy for non-RAID disks is write-through.
H740P, H745, and H745P MX non-RAID disks are only configurable in the eHBA mode. They are not configurable in RAID mode.
For more details on eHBA mode, see Enhanced HBA mode and for instructions on how to configure a non-RAID disk, see
Convert to non-RAID disk. H345 does support non-RAID drives in RAID mode.
NOTE: H840 does not support non-RAID drives.
Features 33