Hardware; Storage Adapter Configurations; Megaraid 320 Storage Adapter Comparisons - LSI MegaRAID 320 User Manual

1.3

Hardware

1.3.1 Storage Adapter Configurations
Table 1.1

MegaRAID 320 Storage Adapter Comparisons

RAID Levels
SCSI Device Types Synchronous or
Devices per SCSI
Channel
SCSI Channels
SCSI Data Transfer
Rate
SCSI Bus
1-4
Battery backup for up to 72 hours for the MegaRAID 320-2, -2X, and
-4X
Support for up to 14 SCSI drives per channel on storage system with
SAF-TE enclosures (SCSI accessed fault-tolerant enclosures):
15 SCSI drives per channel for other configurations
32 Kbyte x 8 NVRAM for storing RAID system configuration
information; the MegaRAID 320 firmware is stored in flash ROM for
easy upgrade.
Note: The MegaRAID 320-1 does not support clustering.
You can install the MegaRAID 320-1 and -2 in a computer with a
motherboard that has 5 V or 3.3 V, 32- or 64-bit PCI slots. You can install
the MegaRAID 320-2X and -4X in a computer with a motherboard that
has 3.3 V, 64-bit PCI-X slots.
The following subsections describe the hardware configuration and
configuration-on-disk for the MegaRAID 320 storage adapters.
Table 1.1 compares the configurations for the MegaRAID 320-1, -2, -2X,
and -4X storage adapters.
MegaRAID 320-1 MegaRAID 320-2 MegaRAID 320-2X MegaRAID 320-4X
0, 1, 5, 10, 50 0, 1, 5, 10, 50
Synchronous or
Asynchronous Asynchronous
Up to 15 Wide Up to 15 Wide
SCSI devices SCSI devices
1 2
Up to 320 Up to 320
Mbytes/s per Mbytes/s per
channel channel
LVD or SE LVD or SE
Overview
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0, 1, 5, 10, 50 0, 1, 5, 10, 50
Synchronous or Synchronous or
Asynchronous Asynchronous
Up to 15 Wide Up to 15 Wide
SCSI devices SCSI devices
2 4
Up to 320 Up to 320
Mbytes/s per Mbytes/s per
channel channel
LVD or SE LVD or SE