Avago Technologies Cache Protection for RAID Controller Cards - Manual (Page 11)

LSI Corporation
- 11 -
12Gb/s MegaRAID SAS RAID Controllers User Guide
April 2014
Chapter 1: Overview
Summary of 12Gb/s MegaRAID SATA+SAS RAID Controller Characteristics
These RAID controllers support 64-bit logical block addressing (LBA), which makes it possible to connect a large
number of drives to the RAID controller, directly and through expanders. However, the actual number of drives that
you can attach depends on the limits listed in this table rather than by actual RAID volume capacity.
1.6.3 SATA III Features
The following list describes the SATA III features of the RAID controllers:
 They support SATA III data transfers of 6Gb/s.
 They support STP data transfers of 6Gb/s and 3Gb/s.
 They provide a serial, point-to-point storage interface.
 They simplify cabling between devices.
 They eliminate the master-slave construction used in parallel ATA.
 They permit addressing of multiple SATA targets through an expander.
 They permit multiple initiators to address a single target (in a fail-over configuration) through an expander.
 They comply with the Serial ATA specification, version 3.0.
1.6.4 PCI Express Performance
The following list describes the PCIe performance features of the RAID controllers:
 They provide a PCIe interface that does the following:
— Supports a dedicated PCIe bus.
— Supports x8 lane configuration.
— Supports transfer rates of up to 8Gb/s per lane.
— Complies with the PCI Express specification, Revision 3.0.
 They provide unequaled performance through the Fusion-MPT architecture.
 They provide high throughput and low CPU utilization to off load the host processor.
Maximum drives per controller 64 (32 configurable
drives)
240 240 240
Maximum hot spares per controller 32 240 240 240
Maximum spans per virtual drive 8 8 8 8
Maximum enclosures 2 16 per port 16 per port 16 per port
Table 1 12Gb/s MegaRAID SATA+SAS RAID Controllers Array Limitations
Specification
MegaRAID SAS
9341-4i Controller
MegaRAID SAS
9341-8i Controller
MegaRAID SAS
9361-4i Controller
MegaRAID SAS
9361-8i Controller
MegaRAID SAS
9380-4i4e
Controller
MegaRAID SAS
9380-8e Controller