What are the ONTAP maintenance mode commands
Applies to
- ONTAP 9
- Maintenance Mode
Answer
The ONTAP maintenance mode is used for low level commands where there is only a rudimentary kernel loaded and no disk I/O is active.
There are (2) ways to boot into the ONTAP Maintenance mode.
-
First, on boot, you can hit the Ctrl-C key sequence:
All rights reserved.
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* Press Ctrl-C for Boot Menu. *
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^CBoot Menu will be available.
then select Option 5 from the Boot Menu
(5) Maintenance mode boot.
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The second is to boot directly into maintenance mode with
LOADER> boot_ontap maint
The complete list of commands available, current as of ONTAP 9.16.1:
You have selected the maintenance boot option:
the system has booted in maintenance mode allowing the following operations to be performed:
? acorn
acpadmin aggr
batch_snap bootargs
cdpd cna_flash
coredump_save coredump_show
coredump_zero disk
disk_list disk_shelf
diskcopy disktest
dumpblock environment
fctest fru_led
ha-config halt
help ifconfig
iftp led_off
led_on lldp
nicadmin nv8
psmadmin raid_config
sasadmin sasstat
scsi sldiag
storage stsb
sysconfig systemshell
ucadmin version
vlist vmdisk_object_store
vmservices vol
vol_db
Type "help <command>" for more details.
*>
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] [-P storage-pod-uuid] [-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 { destroy | display | lock | rekey | rekey_fips | revert_original | sanitize | show | show_fips | show_standards } - 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>] [-r <dr-partner-sysid> ] - reassign disks from old filer
remove_ownership [<disk_name> | all | -s <sysid>] [-f] - revert/remove disk ownership
sanitize { start | abort | status | release } - sanitize one or more disks (9.5+)
sanown_stats {start| stop| show }- collect sanown event stats
show [-o <ownername> | -s <sysid> | -n | -v | -a | -m | -p | -w | -S <disk_serialno> | -c <cluster_disk_name> ] - 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
visible_all - Make disks visible for assimilation
*> 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!)
use -r <MB>, greater than 2MB to tune report size instead of using default progress report for every 100MB
use -e <sector> specifies the ending sector for the copy. Defaults to the last sector of the drive.
use -b <sector> specifies the starting sector for the copy. Defaults to sector 0.
*> ha-config
Usage:
ha-config modify { controller | chassis } { ha | non-ha | mcc | mcc-2n |mcc-ip| default }
ha-config show
*> storage
usage: storage <subcommand>
subcommands are:
disable adapter <name>
enable adapter <name>
help <sub_command>
nvmeof discovery add [ -s <source address> ] [ -p <target port> ] [ -z <scope_id> ] <subsystem address>
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 ]
show psm [ -a ] [ <psm-name> ]
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 complete
bridge log
storage port { show | modify -p <target port> -m { storage | network } [ -f ] }
*>ucadmin modify -m <fc | cna> -t <initiator | target> -f <adapter_name> Note that the -t parameter is only required for fc mode.
Additional Information
- The system can boot into maintenance mode as long as the boot media has not failed or become corrupt.
- What are the commands available from the LOADER prompt
