What are the ONTAP maintenance mode commands

For some of the more commonly used commands, their details are as follows:

*> aggr
The following commands are available; for more information
type "aggr help <command>"
clear_rpbits        options             rename              snaprestore_cancel
destroy             quota_off           restrict            status
offline             read_fsid           rewrite_fsid        undestroy
online              rebuildtree

*> disk
usage: disk <options>
Options are:
        assign {<disk_name> | all | [-T <storage type> | -shelf <shelf name>] [-n <count>] | auto} [-p <pool>]                      {[-o <ownername>] [-s <sysid>] | [-copy-ownership-from <disk-name>]} [-c block|advanced_zoned] [-f] - assign a disk to a filer or all unowned disks by specifying "all"  or <count> number of unowned disks
        ddr_label {repair | print | delete | dumpraw | rm_qualtable | modify [-c]                                            -o <offset> -v <value> | start_scan | pause_scan | resume_scan | error_scan | rediscover | reinit } [-f]                   [-d all | <disk_list>]
        dumpevents { sanown | config_checker | raid } - Dumps the sanown/config-checker/raid event queue since boot
        encrypt { lock | rekey | destroy | revert_original | sanitize | show }                                               - perform tasks specific to self-encrypting disks
        partition { { -n { 2 | 3 } [-u <pool_uuid>] } | { -n <num_parts> -u <pool_uuid> } } [-i <part_idx> -b <raw_blks>].. <disk_name> - partition a disk
        power_cycle [ -f ] { [-d <disk_list>] | [ -c <channel_name> [ -s <shelf_number> ] ] }                                - power-cycle one or more disks
        reassign {-s <old_sysid>} [-d <new_sysid>] [-p <partner_sysid>]- reassign disks from old filer
        remove_ownership [<disk_name> | all | -s <sysid>] [-f] - revert/remove disk ownership
(9.5+)  sanitize { start | abort | status | release } - sanitize one or more disks                                                  sanown_stats {start| stop| show }- collect sanown event stats
        show [-o <ownername> | -s <sysid> | -n | -v | -a]  - lists disks and owners
        unfail [-s] <disk_name>     - unfail a disk  (-s  not valid in maintenance mode)
        unpartition {<disk_name> | all} - unpartition a partitioned disk or unpartition all the partitioned disks

*> diskcopy
usage:
diskcopy -s <source-disk-name> -d <destination-disk-name>
diskcopy -i -s <source-disk-name> -d <destination-disk-name> to invoke skip mode immediately
use -n <sectors> option to use a default size different than 4096 sectors
use -o to do no retries of I/O's at the SCSI layer (USE WITH CAUTION!)
(9.5+) use -r <MB>, greater than 2MB to tune report size instead of using default progress report for every 100MB
 

*> ha-config
Usage:
    ha-config modify { controller | chassis } { ha | non-ha | mcc | mcc-2n | default }
    ha-config show

*> storage
usage: storage <subcommand>
subcommands are:
        disable adapter <name>
        enable adapter <name>
        help <sub_command>
        trace info { adapter [<adapter_name>] | device [<device_name>] | ses_drv | disk_shelf [<disk_shelf_name>] | ses_proc | all }
        trace dump { adapter [<adapter_name>] | device [<device_name>] | ses_drv | disk_shelf [<disk_shelf_name>] | ses_proc | all } -f <out_file>
        rename switch <oldname> <newname>
        release disks [ -f ]
        release { mc | tape } <name>
        shelf identify <shelf-name> { on | off }
        show adapter [ -a ] [ <name> ]
        show disk [ -a | -x | -p | -T ] [ <name> ]
        show expander [ -a ] [ <expander-name> ]
        show bridge [ -v ] [ <bridge-name> ]
        show fabric
        show fault [ -a ] [ -v ] [ <shelf-name> ]
        show hub [ -a ] [ -e ] [ <hub-name> ]
        show initiators [-a]
        show mc [ <name> ]
        show port [ <name> ]
        show shelf [ -a ] [ -e ] [ <shelf-name> ]
        show switch [ <name> ]
        show tape [ <name> ]
        show tape supported [ -v ]
        show acp [ -a ]
        stats tape <name>
        stats tape zero <name>
        power_cycle shelf -h
        power_cycle shelf start [-f] -c <channel_name> [-s <shelf_id>]
        power_cycle shelf completed
        bridge log

*>ucadmin modify -m <fc | cna> -t <initiator | target> -f <adapter_name> Note that the -t parameter is only required for fc mode.