Owner's Manual

B-4
LSI SAS RAID ▍
MS-96E0
LSI SAS RAID ▍
MS-96E0
2�2 IM Features
LSI Logic Integrated Mirroring and Integrated Mirroring Enhanced support the following
features:
Congurations of one or two IM or IME volumes on the same LSI Logic SAS con-
troller. Each volume can consist of two mirrored disks (IM) or three to eight mirrored
disks (IME).
(Optional) One global hot spare disk per controller. If a global hot spare disk is
dened, the upper limit for an IME volume is seven mirrored disks.
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, although the two types of disks cannot be
combined on the same LSI Logic SAS controller
Fusion-MPT architecture
Easy-to-use BIOS-based conguration utility (and DOS-based conguration utility
for manufacturing use only)
Error notication: OS-specic event log updated by drivers and errors displayed
inside the Fusion-MPT BIOS
SES status LED support for Integrated Mirroring disks
Write journaling, which allows automatic synchronization of potentially inconsistent
data after unexpected power-down situations
Metadata used to store volume conguration on mirrored disks
Automatic background resynchronization while host I/Os continue
Background media verication ensures that data on the IM volume is accessible
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