table of contents
MFI(4) | Device Drivers Manual | MFI(4) |
NAME¶
mfi — LSI MegaRAID SAS driverSYNOPSIS¶
To compile this driver into the kernel, place the following lines in your kernel configuration file:device pci
device mfi
Alternatively, to load the driver as a module at boot time, place the following
line in loader.conf(5):
device mfi
mfi_load="YES"
DESCRIPTION¶
This driver is for LSI's next generation PCI Express SAS RAID controllers. Access to RAID arrays (logical disks) from this driver is provided via /dev/mfid? device nodes. A simple management interface is also provided on a per-controller basis via the /dev/mfi? device node. The mfi name is derived from the phrase "MegaRAID Firmware Interface", which is substantially different than the old "MegaRAID" interface and thus requires a new driver. Older SCSI and SATA MegaRAID cards are supported by amr(4) and will not work with this driver. Two sysctls are provided to tune the mfi driver's behavior when a request is made to remove a mounted volume. By default the driver will disallow any requests to remove a mounted volume. If the sysctl dev.mfi.%d.delete_busy_volumes is set to 1, then the driver will allow mounted volumes to be removed.HARDWARE¶
The mfi driver supports the following hardware:- LSI MegaRAID SAS 1078
- LSI MegaRAID SAS 8408E
- LSI MegaRAID SAS 8480E
- LSI MegaRAID SAS 9260
- Dell PERC5
- Dell PERC6
- IBM ServeRAID M5015 SAS/SATA
- IBM ServeRAID-MR10i
- Intel RAID Controller SROMBSAS18E
FILES¶
- /dev/mfid?
- array/logical disk interface
- /dev/mfi?
- management interface
DIAGNOSTICS¶
- mfid%d: Unable to delete busy device
- An attempt was made to remove a mounted volume.
SEE ALSO¶
amr(4), pci(4), mfiutil(8)HISTORY¶
The mfi driver first appeared in FreeBSD 6.1.AUTHORS¶
The mfi driver and this manual page were written by Scott Long ⟨scottl@FreeBSD.org⟩.BUGS¶
The driver does not support big-endian architectures at this time.May 12, 2010 | Debian |