Table 30. Integrated Intel® Raid Controller Srombu42E Features - Intel SE7520AF2 Technical Product Specification

Integrated Intel® RAID Controller SROMBU42E
Hot-swappable drive support
Fault-tolerant disk subsystem management
Variable stripe size
Instant logical drive availability
Auto resume during array reconstruction
Background initialization for quick RAID 5 setup
Support for non-hard disk drive devices
SAF-TE intelligent enclosure support
Ease of management and monitoring using Intel® RAID management utilities
More than 200 Qtags per array
User-specified rebuild rate
Wide Ultra320 LVD SCSI performance up to 320 Mbytes/s
Support for up to 1 Gbyte of double data rate (DDR) 333MHz unbuffered ECC SDRAM.
One 32-, 64-, 128-, 256-, 512-, or 1-Gbyte DIMM can be installed in Slot 2 (RAID DIMM).
Support for RAID levels 0 (striping), 1 (mirroring), 5 (striping and parity data across all
drives), 10 (mirroring and striping), and 50 (RAID 5 and striping)
Advanced array configuration and management utilities
Battery backup for up to 72 hours (requires use of the Intel® Portable Cache Module
Accessory)
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 firmware is
stored in flash ROM for easy upgrade
Table 30. Integrated Intel® RAID Controller SROMBU42E Features
Feature
RAID Levels
SCSI Device Types
Devices per SCSI Channel
SCSI Channels
SCSI Data Transfer Rate
SCSI Bus
Cache Function
Multiple Logical Drives/Arrays per
Controller
Online Capacity Expansion
Dedicated and Pool Hot Spare
Hot Swap Devices Supported
Non-Disk Devices Supported
Mixed Capacity Hard Disk Drives
Cluster Support
84
0, 1, 5, 10, 50
Synchronous or Asynchronous
Up to 15 Wide SCSI devices
2
Up to 320 Mbytes/s per channel
LVD only
Write-back (requires Battery Backup Unit), Write-through, Adaptive
Read Ahead, Non Read Ahead, Read Ahead, Cache I/O, Direct I/O
Up to 40 logical drives per controller
Yes
Yes
Yes
Yes
Yes
No
Intel order number C77866-003
Intel® Server Board SE7520AF2 TPS
Description
Revision 1.2