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| .\" $FreeBSD: releng/11.1/usr.sbin/mfiutil/mfiutil.8 289677 2015-10-21 05:37:09Z eadler $ |
| .\" |
| .Dd 2024 |
| .Dt MFIUTIL 8 |
| .Os mfiutil 1.0.15-rivoreo-r1 |
| .Sh NAME |
| .Nm mfiutil |
| .Nd Utility for managing LSI MegaRAID SAS controllers |
| .Sh SYNOPSIS |
| .Nm |
| .Cm version |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show adapter |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show battery |
| .Nm |
| .Op Fl d |
| .Op Fl e |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show config |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show drives |
| .Nm |
| .Op Fl t Ar drv_type |
| .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 t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show firmware |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show foreign Op Ar volume |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show logstate |
| .Nm |
| .Op Fl d |
| .Op Fl e |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show patrol |
| .Nm |
| .Op Fl d |
| .Op Fl e |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show progress |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm show volumes |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm fail Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm good Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm rebuild Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm syspd Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm drive progress Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm drive clear Ar drive Brq "start | stop" |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm start rebuild Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm abort rebuild Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm locate Ar drive Brq "on | off" |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm cache Ar volume Op Ar setting Oo Ar value Oc Op ... |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm name Ar volume Ar name |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm volume progress Ar volume |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm clear |
| .Nm |
| .Op Fl t Ar drv_type |
| .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 t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm delete Ar volume |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm add Ar drive Op Ar volume |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm remove Ar drive |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm start patrol |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm stop patrol |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm patrol Ar command Op Ar interval Op Ar start |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm foreign scan |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm foreign clear Op Ar config |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm foreign diag Op Ar config |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm foreign preview Op Ar config |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm foreign import Op Ar config |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm flash Ar file |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm start learn |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm bbu Ar setting Ar value |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm ctrlprop rebuild Op Ar rate |
| .Nm |
| .Op Fl t Ar drv_type |
| .Op Fl u Ar unit |
| .Cm ctrlprop alarm Op on|off |
| .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 two global options are supported: |
| .Bl -tag -width indent |
| .It Fl t Ar drv_type |
| (FreeBSD only) |
| .Ar drv_type |
| specifies the type of driver to work with; it takes either |
| .Ic mfi |
| or |
| .Ic mrsas . |
| The default type is |
| .Ic mrsas |
| if this tool was invoked as |
| .Nm mrsasutil , |
| otherwise |
| .Ic mfi . |
| .Pp |
| (Solaris only) |
| .Ar drv_type |
| specifies the type of driver to work with. |
| The default type is |
| .Ic mr_sas . |
| .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 |
| A volume may be identified by its target ID. |
| Alternatively, when working with |
| .Xr mfi 4 |
| driver, the volume may also be specified by the corresponding |
| .Em mfidX |
| device name, |
| 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 foreign |
| Displays detected foreign configurations on disks for importation or removal. |
| .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 syspd Ar drive |
| Present the drive to the host operating system as a disk SYSPD block device in |
| the format /dev/mfisyspdX. Clear this flag with |
| .Cm good |
| .Ar 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 foreign scan |
| Scan for foreign configurations and display the number found. The |
| .Ar config |
| argument for the commands below takes the form of a number from 0 to the total |
| configurations found. |
| .It Cm foreign clear Op Ar config |
| Clear the specified foreign |
| .Ar config |
| or all if no |
| .Ar config |
| argument is provided. |
| .It Cm foreign diag Op Ar config |
| Display a diagnostic display of the specified foreign |
| .Ar config |
| or all if no |
| .Ar config |
| argument is provided. |
| .It Cm foreign preview Op Ar config |
| Preview the specified foreign |
| .Ar config |
| after import or all if no |
| .Ar config |
| argument is provided. |
| .It Cm foreign import Op Ar config |
| Import the specified foreign |
| .Ar config |
| or all if no |
| .Ar config |
| argument is provided. |
| .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 |
| .It Cm ctrlprop rebuild Op Ar rate |
| With no arguments display the rate of rebuild (percentage)a for volumes. |
| With an integer argument (0-100), set that value as the new rebuild rate for volumes. |
| .It Cm ctrlprop alarm Op on|off |
| With no arguments display the current alarm enable/disable status. |
| With an |
| .Cm on |
| or an |
| .Cm off |
| argument, enable or disable alarm. |
| .El |
| .Sh GET UNIT NUMBER OF CONTROLLERS |
| .Nm |
| makes no attempt to enumerate all the installed controllers; instead the |
| correct unit number of the intended controller must be passed via global |
| option |
| .Fl u , |
| otherwise the controller with unit 0 is assumed. |
| .Pp |
| The particular ways of listing controllers differ between different drivers |
| and kernels; the following descriptions use |
| .Ar X |
| to indicate the unit number. |
| .Bl -bullet |
| .It |
| .Xr mfi 4 |
| driver |
| .Pp |
| This driver creates a |
| .Pa /dev/mfiX |
| device node for each controller it attached. A list of the available device |
| nodes can be queried using a shell command such as |
| .Ic ls -l /dev/mfi[0-9]* . |
| .It |
| .Xr mrsas 4 |
| driver |
| .Pp |
| Similar to the |
| .Xr mfi 4 |
| driver, this driver creates a |
| .Pa /dev/mrsasX |
| device node for each controller it attached. |
| .Pp |
| .It |
| Linux |
| .Xr megaraid_sas 4 |
| driver |
| .Pp |
| This driver uses the global SCSI host unit number as the controller unit |
| number; therefore if other SCSI host devices are also installed, multiple unit |
| numbers are sometimes not continuous as users might expect. |
| .Pp |
| To find out the SCSI host unit numbers assigned to the installed controllers, |
| list the |
| sysfs |
| directory |
| .Pa /sys/class/scsi_host/ , |
| where |
| .Pa /sys/class/scsi_host/hostX |
| are symbolic links to different SCSI host device directories. |
| For example: |
| .Bd -literal -offset 2n |
| .Li # ls -l /sys/class/scsi_host/ |
| .Li total 0 |
| .Li lrwxrwxrwx 1 root root 0 Aug 26 00:00 host0 -> ../../devices/pci0000:00/0000:00:01.0/0000:02:00.0/host0/scsi_host/host0 |
| .Li lrwxrwxrwx 1 root root 0 Aug 26 00:00 host1 -> ../../devices/pci0000:00/0000:00:11.4/ata1/host1/scsi_host/host1 |
| .Li lrwxrwxrwx 1 root root 0 Aug 26 00:00 host2 -> ../../devices/pci0000:00/0000:00:11.4/ata2/host2/scsi_host/host2 |
| .Li lrwxrwxrwx 1 root root 0 Aug 26 00:00 host3 -> ../../devices/pci0000:00/0000:00:02.2/0000:05:00.0/host3/scsi_host/host3 |
| .Ed |
| .Pp |
| Manual inspection must be taken to distinguish MegaRAID SAS controllers from |
| other devices if any. |
| .Pp |
| Newer versions of |
| .Xr megaraid_sas 4 |
| driver creates per-controller nodes in debugfs, |
| so if the debugfs is mounted at conventional path, a clearer list of available |
| controller can also be queried by listing |
| .Pa /sys/kernel/debug/megaraid_sas/ |
| directory. |
| For example: |
| .Bd -literal -offset 2n |
| .Li # ls -l /sys/kernel/debug/megaraid_sas/ |
| .Li total 0 |
| .Li drwxr-xr-x 2 root root 0 May 29 11:43 scsi_host0 |
| .Li drwxr-xr-x 2 root root 0 May 29 11:43 scsi_host3 |
| .Ed |
| .Pp |
| .It |
| Solaris kernel |
| .Pp |
| Drivers for Solaris kernel assign a per-driver instance number when a newly |
| installed controller is probed; this number is then recorded, so it is |
| generally persistent if the hardware configuration remain unchanged. |
| .Pp |
| The instance numbers can be queried from the |
| .Xr path_to_inst 4 |
| file. Simply search the double quoted driver name in it, by running |
| .Pp |
| .Ic grep -F |
| .Sm off |
| .Ic \e\(dq Ar driver |
| .Ic \e\(dq |
| .Sm on |
| .Ic /etc/path_to_inst |
| .Pp |
| For example, listing instances of the |
| .Xr mr_sas 7D |
| driver would be look like: |
| .Bd -literal -offset 2n |
| .Li # /usr/xpg4/bin/grep -F \e\(dqmr_sas\e\(dq /etc/path_to_inst |
| .Li \(dq/pci@0,0/pci8086,2f02@1/pci1028,1f49@0\(dq 0 \(dqmr_sas\(dq |
| .Li \(dq/pci@76,0/pci8086,2f04@2/pci1014,454@0\(dq 1 \(dqmr_sas\(dq |
| .Ed |
| .Pp |
| Then take an appropriate instance number for use in |
| .Nm . |
| .El |
| .Pp |
| If multiple supported controllers are installed in the system, it is suggested |
| to run a |
| .Dl Nm Fl u Ar X Cm show adapter |
| first to ensure the unit number |
| .Ar X |
| is correct for the intended controller. |
| .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 |
| Reconfigure a disk as a SYSPD block device with no RAID |
| .Pp |
| .Dl Nm Cm syspd 0 |
| .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 |
| .Pp |
| Display the second detected foreign configuration: |
| .Pp |
| .Dl Nm Cm show foreign 1 |
| .Pp |
| Set the current rebuild rate for volumes to 40%: |
| .Dl Nm Cm ctrlprop rebuild 40 |
| .Sh SEE ALSO |
| .Xr mfi 4 , |
| .Xr mrsas 4 |
| .Sh HISTORY |
| The |
| .Nm |
| utility first appeared in |
| .Fx 8.0 . |