1,asmcmd command type[@more@]

asmcmd instance management command: dsget,dsset,lsct,lsop,lspwusr,orapwusr,shutdown

spbackup,spcopy,spget,spmove,spset,startup

asmcmd file management commands: cd,cp,du,find,ls,lsof,mkalias,pwd,rm,rmalias

asmcmd disk group management commands: chdg,chkdg,dropdg,iostat,lsattr,lsdg,lsdsk,lsod,md_backup,

md_restore,mkdg,mount,offline,online,rebal,remap,setattr,umount

asmcmd template management commands: chtmpl,lstmpl,mktmpl,rmtmpl

asmcmd file access control commands: chgrp,chmod,chown,groups,grpmod,lsgrp,lsusr,mkgrp,mkusr,passwd,

rmgrp,rmusr

asmcmd volume management commands:volcreate,voldelete,voldisable,volenable,volinfo,volresize,volset,volstat

2,asmcmd -p

[grid@asm ~]$ asmcmd -p
ASMCMD [+] > ls
DATA/
FLASH/
ASMCMD [+] > cd data
ASMCMD [+data] > ls
ASM/
ASMCMD [+data] > cd asm
ASMCMD [+data/asm] > ls -l

3,獲取asmcmd中comand的幫助文件

ASMCMD> help dsget
dsget [--normal|--parameter|--profile [-f]]

Retrieve the diskstring value from the ASM server and gPnP profile;
[--normal] gets the diskstring from gPnP profile and ASM instance.
[--profile] retrieves the diskstring from gPnP profile.
[-f] retrieves the diskstring from local gPnP profile.
used only with --profile
cluster stack should not be up while using this option
[--parameter] Retrieves the ASM_DISKSTRING parameter from ASM instance.

4,asmcmd instance management command

dsget :retrieves the discovery diskstring value that is used by the oracle asm instance and its clients

dsset :set the discovery diskstring value that is used by the oracle asm instance and its clients

lsct :list information about current oracle asm instance client

information from v$asm_client

lsop :list current operation on a disk group or oracle asm instance

information from v$asm_operation

lspwusr :lists the users from an oracle asm password file

orapwusr :adds,drops,or changes an oracle asm password usr

ASMCMD> orapwusr --add --privilege sysdba hr
Enter password: ******

ASMCMD> lspwusr
Username sysdba sysoper sysasm
SYS TRUE TRUE TRUE
ASMSNMP TRUE FALSE FALSE
ASM FALSE FALSE TRUE
HR TRUE FALSE FALSE

shutdown :shuts down an oracle asm instance

spbackup :backs up an oracle asm spfile

spbackup can backup an oracle asm spfile from a disk group to a disk group

or to an operating system file or an operating system file to diskgroup

ASMCMD [+data/asm/asmparameterfile] > spbackup REGISTRY.253.801072449 +data/asmspfilebackup.bak

ASMCMD [+data/asm/asmparameterfile] > spbackup REGISTRY.253.801072449 /oradata/asmspfilebackup.bak

spcopy : copies an oracle asm spfile

ASMCMD [+data/asm/asmparameterfile] > spcopy REGISTRY.253.801072449 +data/asmspfilecp.back
ORA-15056: additional error message
ORA-17502: ksfdcre:4 Failed to create file +data/asmspfilecp.back
ORA-15268: internal Oracle file +DATA.253.1 already exists.
ORA-06512: at line 7 (DBD ERROR: OCIStmtExecute)

present this error because of spcopy cannot make multiple copies of an oracle asm spfile

in the same disk group(can use spbackup for this purpose)

ASMCMD [+data/asm/asmparameterfile] > spcopy REGISTRY.253.801072449 +flash/asmspfilecp.bak

ASMCMD [+data/asm/asmparameterfile] > spcopy REGISTRY.253.801072449 /oradata/asmspfilecp.bak

ASMCMD [+data/asm/asmparameterfile] > spcopy -u REGISTRY.253.801072449 +flash/asmspfilecp25.bak

spget : retrieve the location of the oracle asm spfile

ASMCMD [+] > spget
+flash/asmspfilecp25.bak

spmove :move an oracle asm spfile

spset : sets the location of the oracle asm spfile

startup :starts up an oracle asm instance

5,asmcmd file management commands

cd :changes the current directory to the specified directory

cp :enables you to copy files between disk groups,and between a disk group and the operation system

cp [-i][-f] src_file[rem_connect_str:] tgt_file

cp [-i][-f] [rem_connect_str:]src_file tgt_file

-i :specifies the interactive option,promts before copying or overwriting a file

-f :specifies the force option,if the destination file exists,remove it and then try again without usr interaction

rem_connect_str :specifies the connection string for a remote instance

src_file :name of the source file to copy. must be either a fully qualified file name or an oracle asm alias

tgt_file :a user alias for the created target file name or alias directory name

rem_connect_str :user@host[.part_number].SID

some file bypes cannot be the source or destination of the cp command,these file types include

OCR and OCR backup file types. to backup,copy,or move an oracle asm spfile,use the spbakup,

spcopy,or spmove command.

ASMCMD [+data/asm] > cp users01.dbf +data/users01.dbf.cp

ASMCMD [+data/asm] > cp users01.dbf /oradata

ASMCMD [+data/asm] > cp /oradata/users01.dbf +flash

du :displays the total disk space occupied by files in the specified oracle asm directory and all of

its subdirectories,recursively,

ASMCMD [+data/asm] > du +data
Used_MB Mirror_used_MB
1501 1501
ASMCMD [+data/asm] > cd datafile
ASMCMD [+data/asm/datafile] > du
Used_MB Mirror_used_MB
1283 1283

find :lists the paths of all occurrences of the specified name(with wildcards) under the specified directory

ASMCMD [+] > find +data user*

ASMCMD [+] > find --type datafile +data user*

ls : lists the contents of an oracle asm directory,attributes of the specified file,or

the names and attributes of all disk groups

ASMCMD [+data/asm/datafile] > ls -l

ASMCMD [+data/asm/datafile] > ls -lt

ASMCMD [+data/asm/datafile] > ls -s

ASMCMD [+data/asm/datafile] > ls --permission

lsof :list the open files

mkalias :creates an alias for system-generaterd filenames

ASMCMD [+data/asm] > mkalias +DATA/ASM/DATAFILE/USERS.265.806511631 users01.dbf

mkdir : creates oracle asm directories

pwd :displays the path of the current oracle asm directory

rm : deletes the specified oracle asm files or directories.

rmalias : deletes the specified alias,retaining the file that the alias points to.

ASMCMD [+data/asm] > rmalias users01.dbf

6,asmcmd disk group management commands

chdg :change a disk group(add,drop or rebalance)

chkdg : check or repairs a disk group

ASMCMD> chkdg --repair flash

dropdg :drops a disk group

iostat :displays I/O statistics of disks

ASMCMD> help iostat
iostat [-etH][--io][--region] [-G dgname] [interval]

Report statistics and input/output statistics. The statistics
are reported just for mounted devices.

[interval] Refresh interval.
[--io] Display information in IOs, instead of bytes.
[--region] Display regions information
[-e] Display error statistics.
[-t] Display time statistics.
[-G ] List statistics for a specific disk group.
[-H] Suppress column headers.

ASMCMD> iostat 3 --region

lsattr :lists the attributes of a disk group

ASMCMD> lsattr -l

Name Value

access_control.enabled FALSE

access_control.umask 066

au_size 1048576

cell.smart_scan_capable FALSE

compatible.asm 11.2.0.0.0

compatible.rdbms 10.1.0.0.0

disk_repair_time 3.6h

sector_size 512

access_control.enabled FALSE

access_control.umask 066

au_size 1048576

cell.smart_scan_capable FALSE

compatible.asm 11.2.0.0.0

compatible.rdbms 10.1.0.0.0

disk_repair_time 3.6h

sector_size 512

lsdg :list disk groups and their information

ASMCMD> lsdg --discovery
State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name
MOUNTED EXTERN N 512 4096 1048576 6134 4579 0 4579 0 N DATA/
MOUNTED EXTERN N 512 4096 1048576 4094 4026 0 4026 0 N FLASH/

lsdsk :list disks oracle asm disks

ASMCMD> lsdsk -t -p -G data
Group_Num Disk_Num Incarn Mount_Stat Header_Stat Mode_Stat State Create_Date Mount_Date Repair_Timer Path
1 0 3915912477 CACHED MEMBER ONLINE NORMAL 03-DEC-12 05-FEB-13 0 ORCL:DATA01
1 1 3915912478 CACHED MEMBER ONLINE NORMAL 03-DEC-12 05-FEB-13 0 ORCL:DATA02

lsod :lists open devices

ASMCMD> lsod -G data --process LGWR
Instance Process OSPID Path
1 oracle@asm (LGWR) 4076 ORCL:DATA01
1 oracle@asm (LGWR) 4076 ORCL:DATA02

md_backup :create a backup of the metadata of mounted disk groups

ASMCMD> md_backup /oradata/disk_md_backup
Disk group metadata to be backed up: DATA
Disk group metadata to be backed up: FLASH
Current alias directory path: users01-a
Current alias directory path: ASM/ONLINELOG
Current alias directory path: ASM/ASMPARAMETERFILE
Current alias directory path: ASM/CONTROLFILE
Current alias directory path: ASM
Current alias directory path: ASM/PARAMETERFILE
Current alias directory path: ASM/DATAFILE
Current alias directory path: ASM/TEMPFILE
Current alias directory path: ASM
Current alias directory path: ASM/ASMPARAMETERFILE
Current alias directory path: ASM/DATAFILE
ASMCMD> md_backup /oradata/disk_md_backup_data -G data
Disk group metadata to be backed up: DATA
Current alias directory path: users01-a
Current alias directory path: ASM/ONLINELOG
Current alias directory path: ASM/ASMPARAMETERFILE
Current alias directory path: ASM/CONTROLFILE
Current alias directory path: ASM
Current alias directory path: ASM/PARAMETERFILE
Current alias directory path: ASM/DATAFILE
Current alias directory path: ASM/TEMPFILE

md_restore :restore disk group from a backup of the metadata

mkdg :create a disk group;

mount : mount a disk group

offline :offlines a disk or a failure group

online :onlines a disk or a failure group

rebal :rebalance a disk group

remap :relocates data in a range of physical blocks on a disk

setattr : set attributes a disk group

umount : diskmount a diskgroup

7,asmcmd template management commands

chtmpl : change the attribute of a template

lstmpl : lists disk group templates

ASMCMD> lstmpl -l -G data
Group_Name Group_Num Name Stripe Sys Redund PriReg MirrReg
DATA 1 ARCHIVELOG COARSE Y UNPROT COLD COLD
DATA 1 ASMPARAMETERBAKFILE COARSE Y UNPROT COLD COLD
DATA 1 ASMPARAMETERFILE COARSE Y UNPROT COLD COLD
DATA 1 ASM_STALE COARSE Y UNPROT COLD COLD
DATA 1 AUTOBACKUP COARSE Y UNPROT COLD COLD
DATA 1 BACKUPSET COARSE Y UNPROT COLD COLD
DATA 1 CHANGETRACKING COARSE Y UNPROT COLD COLD
DATA 1 CONTROLFILE FINE Y UNPROT COLD COLD
DATA 1 DATAFILE COARSE Y UNPROT COLD COLD
DATA 1 DATAGUARDCONFIG COARSE Y UNPROT COLD COLD
DATA 1 DUMPSET COARSE Y UNPROT COLD COLD
DATA 1 FLASHBACK COARSE Y UNPROT COLD COLD
DATA 1 FLASHFILE COARSE Y UNPROT COLD COLD
DATA 1 OCRBACKUP COARSE Y UNPROT COLD COLD
DATA 1 OCRFILE COARSE Y UNPROT COLD COLD
DATA 1 ONLINELOG COARSE Y UNPROT COLD COLD
DATA 1 PARAMETERFILE COARSE Y UNPROT COLD COLD
DATA 1 TEMPFILE COARSE Y UNPROT COLD COLD
DATA 1 XTRANSPORT COARSE Y UNPROT COLD COLD

mktmpl : adds a template to a disk group

ASMCMD> mktmpl -G data --redundancy unprotected --striping coarse mytemplate

rmtmpl :removes a template from a disk group

ASMCMD> rmtmpl -G data mytemplate

8,asmcmd file access control commands

chgrp : changes the user group of a file or list of files

chmod : change permissions of a file or list of files

chown : change the owner of a file or list of files

groups : lists the user groups to which a user belongs

grpmod : adds or removes users from an existing user group

lsgrp : lists user groups

lsusr : lists users in a disk group

mkgrp : creates a new nusr group

mkusr : adds a user to disk group

passwd : changes the password of a user

rmgrp : deletes a user group

rmusr : deletes a user from a disk group

9,asmcmd volume management commands

volcreate : create an oracle advm volume in the specified group

voldelete : deletes an oracle advm volume

voldisable :disable oracle advm volumes in mounted disk groups

volenable :enables oracle advm volumes in mounted disk groups

volinfo :diskplays information about oracle advm volumes

volresize :resize an oracle advm volume

volset : sets attributes of an oracle advm volume in mounted disk groups

volstat : reports volume i/o statistics.

oracle asm asmcmd

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