Intel rms25cb080 [44/60] Support for non hard disk drive devices

Intel rms25cb080 [44/60] Support for non hard disk drive devices
34 Intel® Integrated RAID Module RMS25PB0x0 and RMS25CB0x0 Hardware User’s Guide
Support for Non-Hard Disk Drive Devices
Selected non-hard drive devices are supported for use with this module. For information
on support for non-hard drive devices, see this RAID module’s Tested Hardware and
Operating System List.
Enclosure Management Support
The Intel
®
Integrated RAID Module RMS25PB080, RMS25PB040, RMS25CB080 and
RMS25CB040 support the internal SAS sideband signal SFF-8485 (SGPIO) enclosure
management interface.
RAID Functionality and Features
Hierarchy
The fundamental purpose of a RAID system is to present a usable data storage medium
(virtual drive) with some level of redundancy to a host operating system. The Intel
®
RAID firmware is based on the concept of associating physical drives in arrays and then
creating a virtual drive from that array that includes a functional RAID level. To create a
virtual drive and present it to the host operating system, the RAID firmware typically
follows these steps:
1. One or more physical drives are selected and associated as an array.
2. One or more arrays are associated and given a RAID level. This process creates a
virtual drive and provides an option to initialize the virtual drive.
3. The RAID firmware presents the virtual drive to the operating system.
RAID Physical Drive Status
Table 11. RAID Physical Drive Status
Drive State Code Description
Unconfigured Good Unconfigured Good The drive is functioning normally, but is not part of a
configured virtual drive and is not a hot spare.
Online ONLN The drive is online, is part of a configured
virtual drive, and is functioning normally.
Hot Spare HOTSP A physical drive that is configured as a hot spare.
Failed FAILED A physical drive that was originally configured as
Online or Hot Spare, but on which the firmware
detects an unrecoverable error.

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