ONTAPメンテナンスモードのコマンドとは

環境

• ONTAP 9
• メンテナンス モード

回答

ONTAPメンテナンスモードは、基本的なカーネルのみがロードされ、ディスクI/Oがアクティブでない低レベルのコマンドに使用します。

ONTAPメンテナンスモードでブートする方法は2つあります。

• まず、ブート時にCtrl+Cキーを押します。

 All rights reserved. ******************************* * Press Ctrl-C for Boot Menu. * ******************************* . . ^CBoot Menu will be available. 

次に、ブートメニューからオプション5を選択します。

(5)  Maintenance mode boot.

• 2つ目は、次のコマンドを使用してメンテナンスモードで直接ブートする方法です。

LOADER> boot_ontap maint

使用可能なコマンドの一覧（ONTAP 9.16.1以降）：

 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. *> 

一般的に使用される一部のコマンドの詳細は次のとおりです。

*> 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.

追加情報

• ブートメディアに障害が発生したり破損したりしていなければ、システムをメンテナンスモードでブートできます。
• Loaderプロンプトで使用できるコマンド