Intel AFCSASRISER User Guide - Page 59

Intel® IT/IR RAID Configuration, IM and IME Configuration Overview, Features

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6 Intel® IT/IR RAID Configuration This chapter explains how to create Integrated Mirroring (IM), Integrated Mirroring Enhanced (IME), and Integrated Striping (IS) volumes using the LSI MPT* SAS BIOS Configuration Utility. IM and IME Configuration Overview You can use the LSI MPT* SAS BIOS Configuration Utility to create one or two IM/IME volumes on each Intel® IT/IR RAID Controller, with one or two optional global hot-spare disks. All disks in an IM/IME volume must be connected to the same Intel® IT/IR RAID Controller. Although you can use disks of different size in IM and IME volumes, the smallest disk in the volume will determine the logical size of all disks in the volume. In other words, the excess space of the larger member disk(s) will not be used. For example, if you create an IME volume with two 100 GB disks and two 120 GB disks, only 100 GB of the larger disks will be used for the volume. Features Integrated Mirroring and Integrated Mirroring Enhanced support the following featurs: • Configurations of one or two IM or IME volumes on the same Intel® IT/IR RAID Controller. IM volumes have two mirrored disks; IME volumes have three to ten mirrored disks. Two volumes can have up to a total of 12 disks. Note: This feature requires IR RAID firmware v1.20.00 or above to be installed. • One or two global hot-spare disks per controller, to automatically replace failed disks in IM/IME volumes. The hot-spare drivess are in addition to the 12-disk maximum for two volumes per Intel® IT/IR RAID Controller. Note: Support for two hot-spare disks requires IR RAID firmware v1.20.00 or above. • Mirrored volumes run in optimal mode or in degraded mode (if one mirrored disk fails). • Hot-swap capability. • Presents a single virtual drive to the OS for each IM/IME volume. • Supports both SAS and SATA disks. The two types of disks cannot be combined in the same volume. However, a Intel® IT/IR RAID Controller can support one volume with SATA disks and a second volume with SAS disks. • Fusion-MPT* architecture. Intel® RAID Software User's Guide 47

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Intel
®
RAID Software User’s Guide
47
6
Intel
®
IT/IR RAID Configuration
This chapter explains how to create Integrated Mirroring (IM), Integrated Mirroring
Enhanced (IME), and Integrated Striping (IS) volumes using the LSI MPT* SAS BIOS
Configuration Utility.
IM and IME Configuration Overview
You can use the LSI MPT* SAS BIOS Configuration Utility to create one or two IM/IME
volumes on each Intel
®
IT/IR RAID Controller, with one or two optional global hot-spare
disks. All disks in an IM/IME volume must be connected to the same Intel
®
IT/IR RAID
Controller.
Although you can use disks of different size in IM and IME volumes, the smallest disk in
the volume will determine the logical size of all disks in the volume. In other words, the
excess space of the larger member disk(s) will not be used. For example, if you create an
IME volume with two 100 GB disks and two 120 GB disks, only 100 GB of the larger
disks will be used for the volume.
Features
Integrated Mirroring and Integrated Mirroring Enhanced support the following featurs:
•
Configurations of one or two IM or IME volumes on the same Intel
®
IT/IR RAID
Controller. IM volumes have two mirrored disks; IME volumes have three to ten
mirrored disks. Two volumes can have up to a total of 12 disks.
Note:
This feature requires IR RAID firmware v1.20.00 or above to be installed.
•
One or two global hot-spare disks per controller, to automatically replace failed
disks in IM/IME volumes. The hot-spare drivess are in addition to the 12-disk
maximum for two volumes per Intel
®
IT/IR RAID Controller.
Note:
Support for two hot-spare disks requires IR RAID firmware v1.20.00 or above.
•
Mirrored volumes run in optimal mode or in degraded mode (if one mirrored disk
fails).
•
Hot-swap capability.
•
Presents a single virtual drive to the OS for each IM/IME volume.
•
Supports both SAS and SATA disks. The two types of disks cannot be combined in
the same volume. However, a Intel
®
IT/IR RAID Controller can support one volume
with SATA disks and a second volume with SAS disks.
•
Fusion-MPT* architecture.