MEGA_SAS(4D) Devices MEGA_SAS(4D)

NAME

mega_sas - SCSI HBA driver for LSI MegaRAID SAS controller

DESCRIPTION

The mega_sas MegaRAID controller host bus adapter driver is a SCSA-
compliant nexus driver that supports the Dell PERC 5/E, 5/i, 6/E
and 6/i RAID controllers, the IBM ServeRAID-MR10k SAS/SATA
controller and the LSI MegaRAID SAS/SATA 8308ELP, 8344ELP, 84016E,
8408ELP, 8480ELP, 8704ELP, 8704EM2, 8708ELP, 8708EM2, 8880EM2 and
8888ELP series of controllers.


Supported RAID features include RAID levels 0, 1, 5, and 6, RAID
spans 10, 50 and 60, online capacity expansion (OCE), online RAID
level migration (RLM), auto resume after loss of system power during
arrays, array rebuild or reconstruction (RLM) and configurable stripe
size up to 1MB. Additional supported RAID features include check
consistency for background data integrity, patrol read for media
scanning and repairing, 64 logical drive support, up to 64TB LUN
support, automatic rebuild and global and dedicated hot spare
support.

CONFIGURATION

The mega_sas.conf file contains no user configurable parameters.
Please configure your hardware through the related BIOS utility or
the MegaCli configuration utility. If you want to install to a
drive attached to a mega_sas HBA, you should create the virtual drive
first from the BIOS before running the Solaris install. You can
obtain the MegaCli utility from the LSI website.


The mega_sas device can support up to 64 virtual disks. Note that
BIOS numbers the virtual disks as 1 through 64, however in the
Solaris operating environment virtual disks are numbered from 0 to
63. Also note that SAS and SATA drives cannot be configured into the
same virtual disk.

KNOWN PROBLEMS AND LIMITATIONS

The mega_sas driver does not support the LSI MegaRAID SAS 8204ELP,
8204XLP, 8208ELP, and 8208XLP controllers.

FILES

/kernel/drv/mega_sas
32-bit ELF kernel module. (x86)


/kernel/drv/amd64/mega_sas
64-bit kernel module. (x86)


/kernel/drv/mega_sas.conf
Driver configuration file (contains no
user-configurable options).

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-------------------+
|Architecture | x86-based systems |
+--------------------+-------------------+
|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)

August 14, 2008 MEGA_SAS(4D)