MEGA_SAS(4D) 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)