Rms2Mh080

Intel® Integrated RAID Module RMS2MH080 Hardware User’s Guide 5
— Hot-swap support.
— Optional battery backup for cache memory.
SAS/SATA Features
• Provides eight independent PHYs, each supporting 6.0 Gbps SAS and SATA data
transfers.
• Scalable interface that supports up to 32 physical devices and 64 logical devices via
expanders.
• Supports Serial SCSI Protocol (SSP) to enable communication with other SAS
devices.
• Supports Serial Management Protocol (SMP) to communicate topology
management information.
• Allows addressing of multiple SATA targets through an expander if using SATA 2.0-
compliant hard disk drives.
• Allows multiple initiators to address a single target (in a fail-over configuration)
through an expander.
Online Capacity Expansion and RAID Level Migration Rules
• Migration must occur to the same or larger capacity configuration.
• Migration cannot occur if there is more than one virtual disk in a logical array.
• Migration and OCE cannot be done on Spanned Arrays (RAID 10, 50, 60).
• Migrations supported are RAID 1 to RAID 0, RAID 5 to RAID 0, RAID 6 to RAID
0.
• With OCE, migrations supported are RAID 0 to RAID 1, RAID 0 to RAID 5, RAID
1 to RAID 5.