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2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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Shulou(Shulou.com)06/01 Report--
1. Instance management commands:
Dsget returns discovery diskstring
Dsset sets discovery diskstring
Lsct displays the client of the current oracle ASM, which generally refers to the database instance and ASM instance. The data comes from the V$ASM_CLIENT view.
Lsop displays the operations of the current disk group or ASM instance, with data from the V$ASM_OPERATION view
Lspwusr displays users in ASM password files
Orapwusr add, delete, modify ASM password file users
Shutdown shuts down ASM instance
Startup starts the ASM instance
Spbackup backup ASM SPFILE, does not affect GPnP profile; backup files are not recognized as SPFILE, cannot be copied with spcopy. To recognize the backup file as SPFILE, you must use the cp command
Spcopy copies ASM SPFILE. You cannot copy more than one copy on the same disk group. To update GPnP profile, use the-u option or the spset command
Spget returns the location of ASM SPFILE from GPnP profile
Spmove Mobile ASM SPFILE, automatically update GPnP profile. Cannot be moved when SPFILE is opened by an ASM instance
Spset sets the location of the ASM SPFILE
two。 File management commands:
Cd changes directories, using wildcards
Cp copies files between disk groups and between disk groups and the operating system. Cannot copy between two remote instances. Files of OCR and OCR backup types cannot use cp, but spbackup,spcopy,spmove
If it is a remote copy, the connection string style is: user@host [.port _ number] .Sid. Port_ number defaults to 1521
Du shows that the disk space used is in the specified directory (including subdirectories)
Find search, pay attention to case-sensitive
Ls displays the contents of the ASM directory
Lsof displays files that have been opened by the local client
Mkalias creates an alias for a system-generated file. Aliases and corresponding files must be on the same disk group and each ASM file can have only one alias
Mkdir creates an ASM directory
Pwd displays the path to the current directory
Rm deletes the specified file or directory. If it is an alias, it deletes the file corresponding to the alias and alias.
Rmalias deletes the specified alias
3. Disk group management command
Chdg modifies disk groups (add disks, delete disks, resize disks, rebalance disk groups, based on XML profiles)
Chkdg checks or repairs disk groups
Dropdg delete disk group
Iostat displays disk IO statistics, information from the V$ASM_DISK_IOSTAT view
Lsattr displays disk group properties, with information from the V$ASM_ATTRIBUTE view
Lsdg displays mounted disk groups and their information. Like the output of ls-ls, the information comes from the V$ASM_DISKGROUP_STAT view. If-- discovery is specified, query V$ASM_DISKGROUP.
Lsdsk displays ASM disks with information from the V$ASM_DISK_STAT view; connection mode query V$ASM_DISK_STAT and V$ASM_DISK returns information; non-connection mode returns information by scanning disk heads
Lsod displays devices that have been turned on
Md_backup creates a mounted disk group metadata backup
Md_restore recovery disk group metadata backup
Mkdg creates disk groups based on the XML profile. Note: disk groups created by mkdg are mounted only on local nodes
Mount mount disk group
Offline takes a disk or failed disk group offline
Online brings a disk or failed disk group online
Rebal rebalances the disk group
Remap relocates the range of physical blocks of data on disk
Setattr sets disk group properties
Umount unmount disk group
4. Template management commands:
Chtmpl modifies template properties
Lstmpl display template Properties
Mktmpl adds template to disk group
Rmtmpl removes a template from a disk group
5. File access management commands:
Chgrp modifies the user group of a file or file list
Permission for chmod to modify files or file lists
Chown modifies the owner of a file or file list
Groups displays the user group to which the user belongs
Grpmod adds or removes operating system users to / from existing user groups
Lsgrp displays user groups
Lsusr displays users in disk groups
Mkgrp creates a user group
Mkusr add operating system user to disk group
Passwd modifies a user's password
Rmgrp deletes a user group
Rmusr deletes a user
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