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man pages section 4: Device and Network Interfaces

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Updated: Thursday, June 13, 2019
 
 

imraid_sas(4D)

Name

imraid_sas - LSI MegaRAID FALCON SAS2.0 Controller HBA driver

Description

The imraid_sas MegaRAID FALCON SAS2.0 controller host bus adapter driver is a SCSA-compliant nexus driver that supports the LSI MegaRAID FALCON SAS 92xx series of controllers.

FALCON HBA supports up to 64 JBOD drives which are directly exposed to OS.

Some of the RAID Features include the following:

  • RAID levels 0, 1, and 5

  • RAID spans 10

  • Online Capacity Expansion (OCE)

  • Online RAID Level Migration (RLM)

  • Auto resume after loss of system power during array rebuild or reconstruction (RLM)

  • Configurable stripe size up to 64KB

  • Check Consistency for background data integrity

  • Patrol read for media scanning and repairing

  • 16 logical drive support

  • Automatic rebuild

  • Global and dedicated Hot Spare support

The imraid_sas.conf file consists a user tunable parameter to configure MSI or MSI-X support in the imraid_sas driver. Pre-boot applications or MegaCli can be used to configure the HBA. The MegaCli utility can be downloaded from the LSI website. To install the operating system on the drives attached to the FALCON HBA, either creates a virtual drive or a JBOD drive from the pre-boot application.

The LSI MegaRAID FALCON SAS device can support up to 16 virtual SAS2.0, SAS1.0, SATA3.0, or SATA 6.0 disks. The BIOS numbers the virtual disks as 1 through 16. In Solaris these drives are numbered from 0 to 15.

Files

/kernel/drv/amd64/imraid_sas

64-bit kernel module x86 ELF kernel module

/kernel/drv/imraid_sas.conf

Driver configuration file containing one user-configurable option

This file is not editable.

Attributes

See attributes(7) for a description of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Architecture
x86
Availability
driver/storage/imraid_sas
Interface Stability
Uncommitted

See Also

sata(4D), attributes(7), prtconf(8), scsi_hba_attach_setup(9F), scsi_sync_pkt(9F), scsi_transport(9F), scsi_device(9S), scsi_inquiry(9S), scsi_pkt(9S)

Small Computer System Interface-2 (SCSI-2)

Notes

JBOD drives do not qualify for any of the RAID processing.

The imraid_sas driver only supports internal and external expanders that are not fully SAS1.0 or fully SAS2.0 compliant.