1 .\" Copyright (c) 2006 Scott Long
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32 .Nd "LSI MegaRAID SAS driver"
34 To compile this driver into the kernel,
35 place the following lines in your
36 kernel configuration file:
37 .Bd -ragged -offset indent
42 Alternatively, to load the driver as a
43 module at boot time, place the following line in
45 .Bd -literal -offset indent
49 This driver is for LSI's next generation PCI Express SAS RAID controllers.
50 Access to RAID arrays (logical disks) from this driver is provided via
53 A simple management interface is also provided on a per-controller basis via
60 name is derived from the phrase "MegaRAID Firmware Interface", which is
61 substantially different than the old "MegaRAID" interface and thus requires
63 Older SCSI and SATA MegaRAID cards are supported by
65 and will not work with this driver.
67 Two sysctls are provided to tune the
69 driver's behavior when a request is made to remove a mounted volume.
70 By default the driver will disallow any requests to remove a mounted volume.
72 .Va dev.mfi.%d.delete_busy_volumes
74 then the driver will allow mounted volumes to be removed.
76 A tunable is provided to adjust the
78 driver's behaviour when attaching to a card.
79 By default the driver will attach to all known cards with high probe priority.
81 .Va hw.mfi.mrsas_enable
83 then the driver will reduce its probe priority to allow
85 to attach to the card instead of
89 does not provide ATA TRIM support.
92 if TRIM support is required.
96 driver supports the following hardware:
100 LSI MegaRAID SAS 1078
102 LSI MegaRAID SAS 8408E
104 LSI MegaRAID SAS 8480E
106 LSI MegaRAID SAS 9240
108 LSI MegaRAID SAS 9260
114 IBM ServeRAID M1015 SAS/SATA
116 IBM ServeRAID M1115 SAS/SATA
118 IBM ServeRAID M5015 SAS/SATA
120 IBM ServeRAID M5110 SAS/SATA
124 Intel RAID Controller SRCSAS18E
126 Intel RAID Controller SROMBSAS18E
129 .Bl -tag -width ".Pa /dev/mfid?" -compact
131 array/logical disk interface
137 .It "mfid%d: Unable to delete busy device"
138 An attempt was made to remove a mounted volume.
147 driver first appeared in
152 driver and this manual page were written by
153 .An Scott Long Aq Mt scottl@FreeBSD.org .
155 The driver does not support big-endian architectures at this time.