MSI X2 User Guide - Page 102
IM Features
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MS-9273 Server 2.2 IM Features LSI Logic Integrated Mirroring and Integrated Mirroring Enhanced support the following features: Configurations of one or two IM or IME volumes on the same LSI Logic SAS controller. 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 defined, 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 configuration utility (and DOS-based configuration utility for manufacturing use only) Error notification: OS-specific event log updated by drivers and errors displayed inside the Fusion-MPT BIOS SES status LED support for Integrated Mirroring disks W rite journaling, which allows automatic synchronization of potentially inconsistent data after unexpected power-down situations Metadata used to store volume configuration on mirrored disks Automatic background resynchronization while host I/Os continue Background media verification ensures that data on the IM volume is accessible B-4