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