freebsd-skq/usr.sbin/mfiutil/mfiutil.8

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.Dd September 2, 2011
.Dt MFIUTIL 8
.Os
.Sh NAME
.Nm mfiutil
.Nd Utility for managing LSI MegaRAID SAS controllers
.Sh SYNOPSIS
.Nm
.Cm version
.Nm
.Op Fl u Ar unit
.Cm show adapter
.Nm
.Op Fl u Ar unit
.Cm show battery
.Nm
.Op Fl d
.Op Fl e
.Op Fl u Ar unit
.Cm show config
.Nm
.Op Fl u Ar unit
.Cm show drives
.Nm
.Op Fl u Ar unit
.Cm show events
.Op Fl c Ar class
.Op Fl l Ar locale
.Op Fl n Ar count
.Op Fl v
.Op Ar start Op Ar stop
.Nm
.Op Fl u Ar unit
.Cm show firmware
.Nm
.Op Fl u Ar unit
.Cm show logstate
.Nm
.Op Fl d
.Op Fl e
.Op Fl u Ar unit
.Cm show patrol
.Nm
.Op Fl d
.Op Fl e
.Op Fl u Ar unit
.Cm show progress
.Nm
.Op Fl u Ar unit
.Cm show volumes
.Nm
.Op Fl u Ar unit
.Cm fail Ar drive
.Nm
.Op Fl u Ar unit
.Cm good Ar drive
.Nm
.Op Fl u Ar unit
.Cm rebuild Ar drive
.Nm
.Op Fl u Ar unit
.Cm drive progress Ar drive
.Nm
.Op Fl u Ar unit
.Cm drive clear Ar drive Brq "start | stop"
.Nm
.Op Fl u Ar unit
.Cm start rebuild Ar drive
.Nm
.Op Fl u Ar unit
.Cm abort rebuild Ar drive
.Nm
.Op Fl u Ar unit
.Cm locate Ar drive Brq "on | off"
.Nm
.Op Fl u Ar unit
.Cm cache Ar volume Op Ar setting Oo Ar value Oc Op ...
.Nm
.Op Fl u Ar unit
.Cm name Ar volume Ar name
.Nm
.Op Fl u Ar unit
.Cm volume progress Ar volume
.Nm
.Op Fl u Ar unit
.Cm clear
.Nm
.Op Fl u Ar unit
.Cm create Ar type
.Op Fl v
.Op Fl s Ar stripe_size
.Ar drive Ns Op \&, Ns Ar drive Ns Op ",..."
.Op Ar drive Ns Op \&, Ns Ar drive Ns Op ",..."
.Nm
.Op Fl u Ar unit
.Cm delete Ar volume
.Nm
.Op Fl u Ar unit
.Cm add Ar drive Op Ar volume
.Nm
.Op Fl u Ar unit
.Cm remove Ar drive
.Nm
.Op Fl u Ar unit
.Cm start patrol
.Nm
.Op Fl u Ar unit
.Cm stop patrol
.Nm
.Op Fl u Ar unit
.Cm patrol Ar command Op Ar interval Op Ar start
.Nm
.Op Fl u Ar unit
.Cm flash Ar file
.Nm
.Op Fl u Ar unit
.Cm start learn
.Nm
.Op Fl u Ar unit
.Cm bbu Ar setting Ar value
.Sh DESCRIPTION
The
.Nm
utility can be used to display or modify various parameters on LSI
MegaRAID SAS RAID controllers.
Each invocation of
.Nm
consists of zero or more global options followed by a command.
Commands may support additional optional or required arguments after the
command.
.Pp
Currently one global option is supported:
.Bl -tag -width indent
.It Fl u Ar unit
.Ar unit
specifies the unit of the controller to work with.
If no unit is specified,
then unit 0 is used.
.El
.Pp
Various commands accept either or both of the two options:
.Bl -tag -width indent
.It Fl d
Print numeric device IDs as drive identifier.
This is the default.
Useful in combination with
.Fl e
to print both, numeric device IDs and enclosure:slot information.
.It Fl e
Print drive identifiers in enclosure:slot form.
See next paragraph on format details in context of input rather than
output.
.El
.Pp
Drives may be specified in two forms.
First,
a drive may be identified by its device ID.
The device ID for configured drives can be found in
.Cm show config .
Second,
a drive may be identified by its location as
.Sm off
.Op E Ar xx Ns \&:
.Li S Ns Ar yy
.Sm on
where
.Ar xx
is the enclosure
and
.Ar yy
is the slot for each drive as displayed in
.Cm show drives .
.Pp
Volumes may be specified in two forms.
First,
a volume may be identified by its target ID.
Second,
on the volume may be specified by the corresponding
.Em mfidX
device,
such as
.Em mfid0 .
.Pp
The
.Nm
utility supports several different groups of commands.
The first group of commands provide information about the controller,
the volumes it manages, and the drives it controls.
The second group of commands are used to manage the physical drives
attached to the controller.
The third group of commands are used to manage the logical volumes
managed by the controller.
The fourth group of commands are used to manage the drive configuration for
the controller.
The fifth group of commands are used to manage controller-wide operations.
.Pp
The informational commands include:
.Bl -tag -width indent
.It Cm version
Displays the version of
.Nm .
.It Cm show adapter
Displays information about the RAID controller such as the model number.
.It Cm show battery
Displays information about the battery from the battery backup unit.
.It Cm show config
Displays the volume and drive configuration for the controller.
Each array is listed along with the physical drives the array is built from.
Each volume is listed along with the arrays that the volume spans.
If any hot spare drives are configured, then they are listed as well.
.It Cm show drives
Lists all of the physical drives attached to the controller.
.It Xo Cm show events
.Op Fl c Ar class
.Op Fl l Ar locale
.Op Fl n Ar count
.Op Fl v
.Op Ar start Op Ar stop
.Xc
Display entries from the controller's event log.
The controller maintains a circular buffer of events.
Each event is tagged with a class and locale.
.Pp
The
.Ar class
parameter limits the output to entries at the specified class or higher.
The default class is
.Dq warn .
The available classes from lowest priority to highest are:
.Bl -tag -width indent
.It Cm debug
Debug messages.
.It Cm progress
Periodic progress updates for long-running operations such as background
initializations, array rebuilds, or patrol reads.
.It Cm info
Informational messages such as drive insertions and volume creations.
.It Cm warn
Indicates that some component may be close to failing.
.It Cm crit
A component has failed, but no data is lost.
For example, a volume becoming degraded due to a drive failure.
.It Cm fatal
A component has failed resulting in data loss.
.It Cm dead
The controller itself has died.
.El
.Pp
The
.Ar locale
parameter limits the output to entries for the specified part of the controller.
The default locale is
.Dq all .
The available locales are
.Dq volume ,
.Dq drive ,
.Dq enclosure ,
.Dq battery ,
.Dq sas ,
.Dq controller ,
.Dq config ,
.Dq cluster ,
and
.Dq all .
.Pp
The
.Ar count
parameter is a debugging aid that specifies the number of events to fetch from
the controller for each low-level request.
The default is 15 events.
.Pp
By default, matching event log entries from the previous shutdown up to the
present are displayed.  This range can be adjusted via the
.Ar start
and
.Ar stop
parameters.
Each of these parameters can either be specified as a log entry number or as
one of the following aliases:
.Bl -tag -width indent
.It Cm newest
The newest entry in the event log.
.It Cm oldest
The oldest entry in the event log.
.It Cm clear
The first entry since the event log was cleared.
.It Cm shutdown
The entry in the event log corresponding to the last time the controller was
cleanly shut down.
.It Cm boot
The entry in the event log corresponding to the most recent boot.
.El
.It Cm show firmware
Lists all of the firmware images present on the controller.
.It Cm show logstate
Display the various sequence numbers associated with the event log.
.It Cm show patrol
Display the status of the controller's patrol read operation.
.It Cm show progress
Report the current progress and estimated completion time for active
operations on all volumes and drives.
.It Cm show volumes
Lists all of the logical volumes managed by the controller.
.El
.Pp
The physical drive management commands include:
.Bl -tag -width indent
.It Cm fail Ar drive
Mark
.Ar drive
as failed.
.Ar Drive
must be an online drive that is part of an array.
.It Cm good Ar drive
Mark
.Ar drive
as an unconfigured good drive.
.Ar Drive
must not be part of an existing array.
.It Cm rebuild Ar drive
Mark a failed
.Ar drive
that is still part of an array as a good drive suitable for a rebuild.
The firmware should kick off an array rebuild on its own if a failed drive
is marked as a rebuild drive.
.It Cm drive progress Ar drive
Report the current progress and estimated completion time of drive operations
such as rebuilds or patrol reads.
.It Cm drive clear Ar drive Brq "start | stop"
Start or stop the writing of all 0x00 characters to a drive.
.It Cm start rebuild Ar drive
Manually start a rebuild on
.Ar drive .
.It Cm abort rebuild Ar drive
Abort an in-progress rebuild operation on
.Ar drive .
It can be resumed with the
.Cm start rebuild
command.
.It Cm locate Ar drive Brq "on | off"
Change the state of the external LED associated with
.Ar drive .
.El
.Pp
The logical volume management commands include:
.Bl -tag -width indent
.It Cm cache Ar volume Op Ar setting Oo Ar value Oc Op ...
If no
.Ar setting
arguments are supplied, then the current cache policy for
.Ar volume
is displayed;
otherwise,
the cache policy for
.Ar volume
is modified.
One or more
.Ar setting
arguments may be given.
Some settings take an additional
.Ar value
argument as noted below.
The valid settings are:
.Bl -tag -width indent
.It Cm enable
Enable caching for both read and write I/O operations.
.It Cm disable
Disable caching for both read and write I/O operations.
.It Cm reads
Enable caching only for read I/O operations.
.It Cm writes
Enable caching only for write I/O operations.
.It Cm write-back
Use write-back policy for cached writes.
.It Cm write-through
Use write-through policy for cached writes.
.It Cm read-ahead Ar value
Set the read ahead policy for cached reads.
The
.Ar value
argument can be set to either
.Dq none ,
.Dq adaptive ,
or
.Dq always .
.It Cm bad-bbu-write-cache Ar value
Control the behavior of I/O write caching if the battery is dead or
missing.
The
.Ar value
argument can be set to either
.Dq disable
or
.Dq enable .
In general this setting should be left disabled to avoid data loss when
the system loses power.
.It Cm write-cache Ar value
Control the write caches on the physical drives backing
.Ar volume .
The
.Ar value
argument can be set to either
.Dq disable ,
.Dq enable ,
or
.Dq default .
.Pp
In general this setting should be left disabled to avoid data loss when the
physical drives lose power.
The battery backup of the RAID controller does not save data in the write
caches of the physical drives.
.El
.It Cm name Ar volume Ar name
Sets the name of
.Ar volume
to
.Ar name .
.It Cm volume progress Ar volume
Report the current progress and estimated completion time of volume operations
such as consistency checks and initializations.
.El
.Pp
The configuration commands include:
.Bl -tag -width indent
.It Cm clear
Delete the entire configuration including all volumes, arrays, and spares.
.It Xo Cm create Ar type
.Op Fl v
.Op Fl s Ar stripe_size
.Ar drive Ns Op \&, Ns Ar drive Ns Op ",..."
.Op Ar drive Ns Op \&, Ns Ar drive Ns Op ",..."
.Xc
Create a new volume.
The
.Ar type
specifies the type of volume to create.
Currently supported types include:
.Bl -tag -width indent
.It Cm jbod
Creates a RAID0 volume for each drive specified.
Each drive must be specified as a separate argument.
.It Cm raid0
Creates one RAID0 volume spanning the drives listed in the single drive list.
.It Cm raid1
Creates one RAID1 volume spanning the drives listed in the single drive list.
.It Cm raid5
Creates one RAID5 volume spanning the drives listed in the single drive list.
.It Cm raid6
Creates one RAID6 volume spanning the drives listed in the single drive list.
.It Cm raid10
Creates one RAID10 volume spanning multiple RAID1 arrays.
The drives for each RAID1 array are specified as a single drive list.
.It Cm raid50
Creates one RAID50 volume spanning multiple RAID5 arrays.
The drives for each RAID5 array are specified as a single drive list.
.It Cm raid60
Creates one RAID60 volume spanning multiple RAID6 arrays.
The drives for each RAID6 array are specified as a single drive list.
.It Cm concat
Creates a single volume by concatenating all of the drives in the single drive
list.
.El
.Pp
.Sy Note:
Not all volume types are supported by all controllers.
.Pp
If the
.Fl v
flag is specified after
.Ar type ,
then more verbose output will be enabled.
Currently this just provides notification as drives are added to arrays and
arrays to volumes when building the configuration.
.Pp
The
.Fl s
.Ar stripe_size
parameter allows the stripe size of the array to be set.
By default a stripe size of 64K is used.
Valid values are 512 through 1M, though the MFI firmware may reject some
values.
.It Cm delete Ar volume
Delete the volume
.Ar volume .
.It Cm add Ar drive Op Ar volume
Mark
.Ar drive
as a hot spare.
.Ar Drive
must be in the unconfigured good state.
If
.Ar volume
is specified,
then the hot spare will be dedicated to arrays backing that volume.
Otherwise,
.Ar drive
will be used as a global hot spare backing all arrays for this controller.
Note that
.Ar drive
must be as large as the smallest drive in all of the arrays it is going to
back.
.It Cm remove Ar drive
Remove the hot spare
.Ar drive
from service.
It will be placed in the unconfigured good state.
.El
.Pp
The controller management commands include:
.Bl -tag -width indent
.It Cm patrol Ar command Op Ar interval Op Ar start
Set the patrol read operation mode.
The
.Ar command
argument can be one of the following values:
.Bl -tag -width indent
.It Cm disable
Disable patrol reads.
.It Cm auto
Enable periodic patrol reads initiated by the firmware.
The optional
.Ar interval
argument specifies the interval in seconds between patrol reads.
If patrol reads should be run continuously,
then
.Ar interval
should consist of the word
.Dq continuously .
The optional
.Ar start
argument specifies a non-negative, relative start time for the next patrol read.
If an interval or start time is not specified,
then the existing setting will be used.
.It Cm manual
Enable manual patrol reads that are only initiated by the user.
.El
.It Cm start patrol
Start a patrol read operation.
.It Cm stop patrol
Stop a currently running patrol read operation.
.It Cm flash Ar file
Updates the flash on the controller with the firmware stored in
.Ar file .
A reboot is required for the new firmware to take effect.
.It Cm start learn
Start a battery relearn.
Note that this seems to always result in the battery being completely drained,
regardless of the BBU mode.
In particular, the controller write cache will be disabled during the relearn
even if transparent learning mode is enabled.
.It Cm bbu Ar setting Ar value
Update battery backup unit (BBU) properties related to battery relearning.
The following settings are configurable:
.Bl -tag -width indent
.It Cm learn-delay
Add a delay to the next scheduled battery relearn event. This setting is
given in hours and must lie in the range of 0 to 255.
.It Cm autolearn-mode
Enable or disable automatic periodic battery relearning.
The setting may be set to
.Dq enable
or
.Dq disable
to respectively enable or disable the relearn cycle.
Alternatively, a mode of 0, 1 or 2 may be given.
Mode 0 enables periodic relearning, mode 1 disables it, and mode 2 disables
it and logs a warning to the event log when it detects that a battery relearn
should be performed.
.It Cm bbu-mode
Set the BBU's mode of operation. This setting is not supported by all BBUs.
Where it is supported, the possible values are the integers between 1 and 5
inclusive.
Modes 1, 2 and 3 enable a transparent learn cycle, whereas modes 4 and 5 do not.
The BBU's data retention time is greater when transparent learning is not used.
.El
.El
.Sh EXAMPLES
Configure the cache for volume mfid0 to cache only writes:
.Pp
.Dl Nm Cm cache mfid0 writes
.Dl Nm Cm cache mfid0 write-back
.Pp
Create a RAID5 array spanning the first four disks in the second enclosure:
.Pp
.Dl Nm Cm create raid5 e1:s0,e1:s1,e1:s2,e1:s4
.Pp
Configure the first three disks on a controller as JBOD:
.Pp
.Dl Nm Cm create jbod 0 1 2
.Pp
Create a RAID10 volume that spans two arrays each of which contains two disks
from two different enclosures:
.Pp
.Dl Nm Cm create raid10 e1:s0,e1:s1 e2:s0,e2:s1
.Pp
Add drive with the device ID of 4 as a global hot spare:
.Pp
.Dl Nm Cm add 4
.Pp
Add the drive in slot 2 in the main chassis as a hot spare for volume mfid0:
.Pp
.Dl Nm Cm add s2 mfid0
.Pp
Configure the adapter to run periodic patrol reads once a week with the first
patrol read starting in 5 minutes:
.Pp
.Dl Nm Cm patrol auto 604800 300
.Sh SEE ALSO
.Xr mfi 4
.Sh HISTORY
The
.Nm
utility first appeared in
.Fx 8.0 .