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author | scottl <scottl@FreeBSD.org> | 2015-08-02 03:52:51 +0000 |
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committer | scottl <scottl@FreeBSD.org> | 2015-08-02 03:52:51 +0000 |
commit | 97b5d9b50ff481242192f26ef7d98ec8c7f1392a (patch) | |
tree | 187ea7bf0a59be2c19c760ff0461c00e052f11ac /usr.sbin/mpsutil/mpsutil.8 | |
parent | 3bc47bb96c47a80288bd4708cf12684c762eb976 (diff) | |
download | FreeBSD-src-97b5d9b50ff481242192f26ef7d98ec8c7f1392a.zip FreeBSD-src-97b5d9b50ff481242192f26ef7d98ec8c7f1392a.tar.gz |
Iniital hack of mpsutil
Diffstat (limited to 'usr.sbin/mpsutil/mpsutil.8')
-rw-r--r-- | usr.sbin/mpsutil/mpsutil.8 | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/usr.sbin/mpsutil/mpsutil.8 b/usr.sbin/mpsutil/mpsutil.8 new file mode 100644 index 0000000..e8b617f --- /dev/null +++ b/usr.sbin/mpsutil/mpsutil.8 @@ -0,0 +1,397 @@ +.\" +.\" Copyright (c) 2008 Yahoo!, Inc. +.\" All rights reserved. +.\" Written by: John Baldwin <jhb@FreeBSD.org> +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the author nor the names of any co-contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd August 16, 2009 +.Dt MPTUTIL 8 +.Os +.Sh NAME +.Nm mptutil +.Nd Utility for managing LSI Fusion-MPT controllers +.Sh SYNOPSIS +.Nm +.Cm version +.Nm +.Op Fl u Ar unit +.Cm show adapter +.Nm +.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 +.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 online Ar drive +.Nm +.Op Fl u Ar unit +.Cm offline Ar drive +.Nm +.Op Fl u Ar unit +.Cm name Ar volume Ar name +.Nm +.Op Fl u Ar unit +.Cm volume status Ar volume +.Nm +.Op Fl u Ar unit +.Cm volume cache Ar volume +.Ar enable|disable +.Nm +.Op Fl u Ar unit +.Cm clear +.Nm +.Op Fl u Ar unit +.Cm create Ar type +.Op Fl q +.Op Fl v +.Op Fl s Ar stripe_size +.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 +.Sh DESCRIPTION +The +.Nm +utility can be used to display or modify various parameters on LSI +Fusion-MPT 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 +Volumes may be specified in two forms. +First, +a volume may be identified by its location as +.Sm off +.Op Ar xx Ns \&: +.Ar yy +.Sm on +where +.Ar xx +is the bus ID and +.Ar yy +is the target ID. +If the bus ID is omitted, +the volume is assumed to be on bus 0. +Second, +on the volume may be specified by the corresponding +.Em daX +device, +such as +.Em da0 . +.Pp +The +.Xr mpt 4 +controller divides drives up into two categories. +Configured drives belong to a RAID volume either as a member drive or as a hot +spare. +Each configured drive is assigned a unique device ID such as 0 or 1 that is +show in +.Cm show config , +and in the first column of +.Cm show drives . +Any drive not associated with a RAID volume as either a member or a hot spare +is a standalone drive. +Standalone drives are visible to the operating system as SCSI disk devices. +As a result, drives may be specified in three forms. +First, +a configured drive may be identified by its device ID. +Second, +any drive may be identified by its location as +.Sm off +.Ar xx Ns \&: +.Ar yy +.Sm on +where +.Ar xx +is the bus ID and +.Ar yy +is the target ID for each drive as displayed in +.Cm show drives . +Note that unlike volumes, +a drive location always requires the bus ID to avoid confusion with device IDs. +Third, +a standalone drive that is not part of a volume may be identified by its +corresponding +.Em daX +device as displayed in +.Cm show drives . +.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. +.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 config +Displays the volume and drive configuration for the controller. +Each volume is listed along with the physical drives 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 Cm show events +Display all the entries from the controller's event log. +Due to lack of documentation this command is not very useful currently and +just dumps each log entry in hex. +.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 +.Dq failed requested . +Note that this state is different from the +.Dq failed +state that is used when the firmware fails a drive. +.Ar Drive +must be a configured drive. +.It Cm online Ar drive +Mark +.Ar drive +as an online drive. +.Ar Drive +must be part a configured drive in either the +.Dq offline +or +.Dq failed requested +states. +.It Cm offline Ar drive +Mark +.Ar drive +as offline. +.Ar Drive +must be a configured, online drive. +.El +.Pp +The logical volume management commands include: +.Bl -tag -width indent +.It Cm name Ar volume Ar name +Sets the name of +.Ar volume +to +.Ar name . +.It Cm volume cache Ar volume Ar enable|disable +Enables or disables the drive write cache for the member drives of +.Ar volume . +.It Cm volume status Ar volume +Display more detailed status about a single volume including the current +progress of a rebuild operation if one is being performed. +.El +.Pp +The configuration commands include: +.Bl -tag -width indent +.It Cm clear +Delete the entire configuration including all volumes and spares. +All drives will become standalone drives. +.It Xo Cm create Ar type +.Op Fl q +.Op Fl v +.Op Fl s Ar stripe_size +.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 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 raid1e +Creates one RAID1E volume spanning the drives listed in the single drive list. +.El +.Pp +.Sy Note: +Not all volume types are supported by all controllers. +.Pp +If the +.Fl q +flag is specified after +.Ar type , +then a +.Dq quick +initialization of the volume will be done. +This is useful when the drives do not contain any existing data that need +to be preserved. +.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 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. +The list of valid values for a given +.Ar type +are listed in the output of +.Cm show adapter . +.It Cm delete Ar volume +Delete the volume +.Ar volume . +Member drives will become standalone drives. +.It Cm add Ar drive Op Ar volume +Mark +.Ar drive +as a hot spare. +.Ar Drive +must not be a member of a volume. +If +.Ar volume +is specified, +then the hot spare will be dedicated to that volume. +Otherwise, +.Ar drive +will be used as a global hot spare backing all volumes for this controller. +Note that +.Ar drive +must be as large as the smallest drive in all of the volumes it is going to +back. +.It Cm remove Ar drive +Remove the hot spare +.Ar drive +from service. +It will become a standalone drive. +.El +.Sh EXAMPLES +Mark the drive at bus 0 target 4 as offline: +.Pp +.Dl Nm Cm offline 0:4 +.Pp +Create a RAID1 array from the two standalone drives +.Va da1 +and +.Va da2 : +.Pp +.Dl Nm Cm create raid1 da1,da2 +.Pp +Mark standalone drive +.Va da3 +as a global hot spare: +.Pp +.Dl Nm Cm add da3 +.Sh SEE ALSO +.Xr mpt 4 +.Sh HISTORY +The +.Nm +utility first appeared in +.Fx 8.0 . +.Sh BUGS +The handling of spare drives appears to be unreliable. +The +.Xr mpt 4 +firmware manages spares via spare drive +.Dq pools . +There are eight pools numbered 0 through 7. +Each spare drive can only be assigned to a single pool. +Each volume can be backed by any combination of zero or more spare pools. +The +.Nm +utility attempts to use the following algorithm for managing spares. +Global spares are always assigned to pool 0, +and all volumes are always backed by pool 0. +For dedicated spares, +.Nm +assigns one of the remaining 7 pools to each volume and +assigns dedicated drives to that pool. +In practice however, it seems that assigning a drive as a spare does not +take effect until the box has been rebooted. +Also, the firmware renumbers the spare pool assignments after a reboot +which undoes the effects of the algorithm above. +Simple cases such as assigning global spares seem to work ok +.Pq albeit requiring a reboot to take effect +but more +.Dq exotic +configurations may not work reliably. +.Pp +Drive configuration commands result in an excessive flood of messages on the +console. +.Pp +The mpt version 1 API that is used by +.Nm +and +.Xr mpt 4 +does not support volumes above two terabytes. +This is a limitation of the API. +If you are using this adapter with volumes larger than two terabytes, use the adapter in JBOD mode. +Utilize +.Xr geom 8 , +.Xr zfs 8 , +or another software volume manager to work around this limitation. |