IBM ServeRAID-MR10is, User Manual

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1-12 Overview
physical drives supported by the controller up to the limit of 128 arrays
per controller. The ServeRAID-MR10is controller supports up to 240
physical drives, but the maximum number of arrays is limited to 128.
Though you can have up to 16 virtual disks per array, and up to 64
arrays per ServeRAID-MR10is controller, there is a limit of 64 virtual
disks per controller. Because of this constraint, the 32 arrays cannot all
contain 16 virtual disks at the same time.
Note: The maximum number of hot spares per array is equal to
the maximum number of drives per array.
1.6.3 SATA II Features
The following list describes the SATA II features of the ServeRAID-
MR10is controller:
•
Supports SATA II data transfers of 3.0 Gbits/s
•
Supports STP data transfers of 3.0 Gbits/s
•
Provides a serial, point-to-point storage interface
•
Simplifies cabling between devices
•
Eliminates the master-slave construction used in parallel ATA
•
Allows addressing of multiple SATA II targets through an expander
•
Allows multiple initiators to address a single target (in a fail-over
configuration) through an expander
1.6.4 PCI Express Performance
The following list describes the PCI Express performance features of the
ServeRAID-MR10is controller:
•
Provides a PCI Express interface that:
– Supports a dedicated PCI Express bus
– Supports x8 lane configuration
– Supports transfer rates of up to 2.5 Gbits/s per lane
– Complies with the PCI Express Specification , Revision 1.0a
•
Provides unequaled performance through the Fusion-MPT
architecture