Veritas™ Volume Manager Administrator's Guide
- Understanding Veritas Volume Manager
- About Veritas Volume Manager
- VxVM and the operating system
- How VxVM handles storage management
- Volume layouts in VxVM
- Online relayout
- Volume resynchronization
- Dirty region logging
- Volume snapshots
- FastResync
- Hot-relocation
- Volume sets
- Provisioning new usable storage
- Administering disks
- About disk management
- Disk devices
- Discovering and configuring newly added disk devices
- Partial device discovery
- Discovering disks and dynamically adding disk arrays
- Third-party driver coexistence
- How to administer the Device Discovery Layer
- Listing all the devices including iSCSI
- Listing all the Host Bus Adapters including iSCSI
- Listing the ports configured on a Host Bus Adapter
- Listing the targets configured from a Host Bus Adapter or a port
- Listing the devices configured from a Host Bus Adapter and target
- Getting or setting the iSCSI operational parameters
- Listing all supported disk arrays
- Excluding support for a disk array library
- Re-including support for an excluded disk array library
- Listing excluded disk arrays
- Listing supported disks in the DISKS category
- Displaying details about a supported array library
- Adding unsupported disk arrays to the DISKS category
- Removing disks from the DISKS category
- Foreign devices
- Disks under VxVM control
- Changing the disk-naming scheme
- About the Array Volume Identifier (AVID) attribute
- Discovering the association between enclosure-based disk names and OS-based disk names
- About disk installation and formatting
- Displaying or changing default disk layout attributes
- Adding a disk to VxVM
- RAM disk support in VxVM
- Veritas Volume Manager co-existence with Oracle Automatic Storage Management (ASM) disks
- Rootability
- Displaying disk information
- Controlling Powerfail Timeout
- Removing disks
- Removing a disk from VxVM control
- Removing and replacing disks
- Enabling a disk
- Taking a disk offline
- Renaming a disk
- Reserving disks
- Administering Dynamic Multi-Pathing
- How DMP works
- Disabling multi-pathing and making devices invisible to VxVM
- Enabling multi-pathing and making devices visible to VxVM
- About enabling and disabling I/O for controllers and storage processors
- About displaying DMP database information
- Displaying the paths to a disk
- Setting customized names for DMP nodes
- Administering DMP using vxdmpadm
- Retrieving information about a DMP node
- Displaying consolidated information about the DMP nodes
- Displaying the members of a LUN group
- Displaying paths controlled by a DMP node, controller, enclosure, or array port
- Displaying information about controllers
- Displaying information about enclosures
- Displaying information about array ports
- Displaying extended device attributes
- Suppressing or including devices for VxVM or DMP control
- Gathering and displaying I/O statistics
- Setting the attributes of the paths to an enclosure
- Displaying the redundancy level of a device or enclosure
- Specifying the minimum number of active paths
- Displaying the I/O policy
- Specifying the I/O policy
- Disabling I/O for paths, controllers or array ports
- Enabling I/O for paths, controllers or array ports
- Renaming an enclosure
- Configuring the response to I/O failures
- Configuring the I/O throttling mechanism
- Configuring Subpaths Failover Groups (SFG)
- Configuring Low Impact Path Probing
- Displaying recovery option values
- Configuring DMP path restoration policies
- Stopping the DMP path restoration thread
- Displaying the status of the DMP path restoration thread
- Displaying information about the DMP error-handling thread
- Configuring array policy modules
- Online dynamic reconfiguration
- About online dynamic reconfiguration
- Reconfiguring a LUN online that is under DMP control
- Removing LUNs dynamically from an existing target ID
- Adding new LUNs dynamically to a new target ID
- About detecting target ID reuse if the operating system device tree is not cleaned up
- Scanning an operating system device tree after adding or removing LUNs
- Cleaning up the operating system device tree after removing LUNs
- Upgrading the array controller firmware online
- Replacing a host bus adapter
- Creating and administering disk groups
- About disk groups
- Displaying disk group information
- Creating a disk group
- Adding a disk to a disk group
- Removing a disk from a disk group
- Moving disks between disk groups
- Deporting a disk group
- Importing a disk group
- Handling of minor number conflicts
- Moving disk groups between systems
- Handling cloned disks with duplicated identifiers
- Renaming a disk group
- Handling conflicting configuration copies
- Reorganizing the contents of disk groups
- Disabling a disk group
- Destroying a disk group
- Upgrading the disk group version
- About the configuration daemon in VxVM
- Backing up and restoring disk group configuration data
- Using vxnotify to monitor configuration changes
- Working with existing ISP disk groups
- Creating and administering subdisks and plexes
- About subdisks
- Creating subdisks
- Displaying subdisk information
- Moving subdisks
- Splitting subdisks
- Joining subdisks
- Associating subdisks with plexes
- Associating log subdisks
- Dissociating subdisks from plexes
- Removing subdisks
- Changing subdisk attributes
- About plexes
- Creating plexes
- Creating a striped plex
- Displaying plex information
- Attaching and associating plexes
- Taking plexes offline
- Detaching plexes
- Reattaching plexes
- Moving plexes
- Copying volumes to plexes
- Dissociating and removing plexes
- Changing plex attributes
- Creating volumes
- About volume creation
- Types of volume layouts
- Creating a volume
- Using vxassist
- Discovering the maximum size of a volume
- Disk group alignment constraints on volumes
- Creating a volume on any disk
- Creating a volume on specific disks
- Creating a mirrored volume
- Creating a volume with a version 0 DCO volume
- Creating a volume with a version 20 DCO volume
- Creating a volume with dirty region logging enabled
- Creating a striped volume
- Mirroring across targets, controllers or enclosures
- Mirroring across media types (SSD and HDD)
- Creating a RAID-5 volume
- Creating tagged volumes
- Creating a volume using vxmake
- Initializing and starting a volume
- Accessing a volume
- Using rules and persistent attributes to make volume allocation more efficient
- Administering volumes
- About volume administration
- Displaying volume information
- Monitoring and controlling tasks
- About SF Thin Reclamation feature
- Reclamation of storage on thin reclamation arrays
- Monitoring Thin Reclamation using the vxtask command
- Using SmartMove with Thin Provisioning
- Admin operations on an unmounted VxFS thin volume
- Stopping a volume
- Starting a volume
- Resizing a volume
- Adding a mirror to a volume
- Removing a mirror
- Adding logs and maps to volumes
- Preparing a volume for DRL and instant snapshots
- Specifying storage for version 20 DCO plexes
- Using a DCO and DCO volume with a RAID-5 volume
- Determining the DCO version number
- Determining if DRL is enabled on a volume
- Determining if DRL logging is active on a volume
- Disabling and re-enabling DRL
- Removing support for DRL and instant snapshots from a volume
- Adding traditional DRL logging to a mirrored volume
- Upgrading existing volumes to use version 20 DCOs
- Setting tags on volumes
- Changing the read policy for mirrored volumes
- Removing a volume
- Moving volumes from a VM disk
- Enabling FastResync on a volume
- Performing online relayout
- Converting between layered and non-layered volumes
- Adding a RAID-5 log
- Creating and administering volume sets
- Configuring off-host processing
- Administering hot-relocation
- About hot-relocation
- How hot-relocation works
- Configuring a system for hot-relocation
- Displaying spare disk information
- Marking a disk as a hot-relocation spare
- Removing a disk from use as a hot-relocation spare
- Excluding a disk from hot-relocation use
- Making a disk available for hot-relocation use
- Configuring hot-relocation to use only spare disks
- Moving relocated subdisks
- Modifying the behavior of hot-relocation
- Administering cluster functionality (CVM)
- Overview of clustering
- Multiple host failover configurations
- About the cluster functionality of VxVM
- CVM initialization and configuration
- Dirty region logging in cluster environments
- Administering VxVM in cluster environments
- Requesting node status and discovering the master node
- Changing the CVM master manually
- Determining if a LUN is in a shareable disk group
- Listing shared disk groups
- Creating a shared disk group
- Importing disk groups as shared
- Handling cloned disks in a shared disk group
- Converting a disk group from shared to private
- Moving objects between shared disk groups
- Splitting shared disk groups
- Joining shared disk groups
- Changing the activation mode on a shared disk group
- Setting the disk detach policy on a shared disk group
- Setting the disk group failure policy on a shared disk group
- Creating volumes with exclusive open access by a node
- Setting exclusive open access to a volume by a node
- Displaying the cluster protocol version
- Displaying the supported cluster protocol version range
- Recovering volumes in shared disk groups
- Obtaining cluster performance statistics
- Administering CVM from the slave node
- Administering sites and remote mirrors
- About sites and remote mirrors
- Making an existing disk group site consistent
- Configuring a new disk group as a Remote Mirror configuration
- Fire drill - testing the configuration
- Changing the site name
- Administering the Remote Mirror configuration
- Examples of storage allocation by specifying sites
- Displaying site information
- Failure and recovery scenarios
- Performance monitoring and tuning
- Appendix A. Using Veritas Volume Manager commands
- Appendix B. Configuring Veritas Volume Manager
- Glossary
CVM commands supported for executing on the slave node
Table: List of CVM commands supported for executing on the slave node shows the complete list of commands that are supported for executing on the slave node.
Table: List of CVM commands supported for executing on the slave node
Command | Supported operations |
|---|---|
vxdg | vxdg -s init <shared_dg> [cds=on|off] vxdg -T < different_versions> -s init <shared_dg> [minor=base-minor] [cds=on|off] vxdg [-n newname] [-h new-host-id] deport <shared_dg> vxdg [-Cfst] [-n newname] [-o clearreserve] [-o useclonedev={on|off}] [-o updateid] [-o noreonline] [-o selectcp=diskid] [-o dgtype=shared] import <shared_dg> vxdg destroy <shared_dg> vxdg -g <shared_dg> [-o overridessb] [-f] adddisk [disk=]device vxdg-g <shared_dg>addsite site vxdg -g <shared_dg> reattachsite site vxdg -g <shared_dg> detachsite site vxdg -g <shared_dg> rmsite site vxdg -g <shared_dg> renamesite oldname newname vxdg flush <shared_dg> vxdg [-qa] -g <shared_dg> free [ medianame...] vxdg join sourcedg targetdg (both dgs should be shared ) vxdg split sourcedg targetdg vxdg [-q] [-s] [-o listreserve] list [diskgroup...] vxdg [-o expand] move sourcedg targetdg object (both dgs should be shared ) vxdg -g shared_dg recover vxdg -g <shared_dg> [-f] reminor <shared_dg> new-minor-number vxdg -g <shared_dg> rmdisk medianame... vxdg -g <shared_dg>[-q] spare [ medianame...] vxdg -g <shared_dg> [-f] [-o retain|replace] settag [encl:<enclosure>] name[=value name[=value] vxdg [-q] listtag <shared_dg> vxdg -g <shared_dg> rmtag [encl:<enclosure>] name=value vxdg -g <shared_dg> set siteconsistent=on vxdg upgrade <shared_dg> vxdg -g <shared_dg>set attr=value ... |
vxassist | vxassist -g <shared_dg> [ -b ] convert volume layout=<type> vxassist -g <shared_dg> [ -b ] addlog volume vxassist -g <shared_dg> [-b] mirror volume vxassist [-b]-g <shared_dg>make volume length [layout=layout] diskname ... vxassist -g <shared_dg> [-b] growby volume lengthchange [attribute ...] vxassist [-b] -g <shared_dg> growto volume newlength vxassist -g <shared_dg> shrinkby volume lengthchange vxassist -g <shared_dg> shrinkto volume newlength vxassist -g <shared_dg> settag volume|vset tagname[=tagvalue] vxassist -g <shared_dg>replacetag volume|vset oldtag newtag vxassist -g <shared_dg> removetag volume|vset tagname vxassist -g <shared_dg> move volume-name storage-spec vxassist -g <shared_dg> relayout {volume-name} layout=<type> vxassist -g <shared_dg> remove {volume|mirror|log} volume-name vxassist -g <shared_dg> snapshot volume-name [snapshot-name] [comment=<comment>] vxassist -g <shared_dg> snapstart volume vxassist -g <shared_dg> maxsize layout=<> nmirror=<> / nlog=<> vxassist -g <shared_dg> maxgrow volume vxassist -g <shared_dg> snapback snapvol vxassist -g <shared_dg> snapclear snapvol1 |
vxcache | vxcache -g <shared_dg> start cacheobject vxcache -g <shared_dg> stop cacheobject vxcache -g <shared_dg> att volume cacheobject vxcache -g <shared_dg> dis cachevol vxcache -g <shared_dg> shrinkcacheto cacheobject newlength vxcache -g <shared_dg> shrinkcacheby cacheobject lengthchange vxcache -g <shared_dg> growcacheto cacheobject newlength vxcache -g <shared_dg> growcacheby cacheobject lengthchange |
vxdco | vxdco -g <shared_dg> dis dco vxdco -g <shared_dg> att volume dco vxdco -g <shared_dg>[-o force] enable dco |
vxedit | vxedit -g <shared_dg> set comment="plex comment" plex1 vxedit -g <shared_dg> -rf rm volume vxedit -g <shared_dg>rename oldname newname vxedit -g <shared_dg> set what=value vxedit-g <shared_dg> set user=value mode=value medianame vxedit -g <shared_dg> set failing=off <disk name> vxedit -g <shared_dg> set fstype volumename vxedit -g <shared_dg> set len subdisk vxedit -g <shared_dg> set orig_dmname subdisk vxedit -g <shared_dg> set orig_dmoffset subdisk vxedit -g <shared_dg> set diskdetpolicy diskgroup |
vxmake | vxmake -g <shared_dg> sd name [attr...] vxmake-g <shared_dg>plex plex sd=subdisk1[,subdisk2,...] vxmake -g <shared_dg> -U fsgen vol homevol1 plex=plex-1 vxmake -g <shared_dg> -U fsgen vol volume1 plex=plex1,plex2 vxmake -g <shared_dg> cache name regionsize=<size> vxmake -g <shared_dg> dco volume log=dco |
vxmend | vxmend -g <shared_dg> on plex vxmend -g <shared_dg> off plex |
vxmirror | vxmirror -g <shared_dg>medianame vxmirror -g <shared_dg> -d [yes|no] |
vxplex | vxplex -g <shared_dg> att volume plex vxplex -g <shared_dg> cp volume new_plex vxplex -g <shared_dg> dis plex1 vxplex -g <shared_dg>mv original_plex new_plex vxplex -g <shared_dg> snapstart vol snapplex vxplex -g <shared_dg> snaphot snapplex vxplex -g <shared_dg> snapback vol snapplex vxplex -g <shared_dg> plex |
vxrelayout | vxrelayout -g <shared_dg> status volume vxrelayout -g <shared_dg> start volume vxrelayout -g <shared_dg> reverse volname |
vxsd | vxsd -g <shared_dg> assoc plex subdisk1 [subdisk2 subdisk3 ...] vxsd -g <shared_dg> [-o force] dis subdisk vxsd -g <shared_dg> mv old_subdisk new_subdisk [new_subdisk ...] vxsd -g <shared_dg> aslog plex2 sdisk3 vxsd -g <shared_dg> join subdisk1 subdisk2 ... new_subdisk vxsd -g <shared_dg> [-o force] dis subdisk vxsd -g <shared_dg> split subdisk newsd [newsd2]... |
vxsnap | vxsnap -g <shared_dg> addmir volume [nmirror=N] vxsnap -g <shared_dg> prepare volume vxsnap -g <shared_dg> rmmir volume vxsnap -g <shared_dg>unprepare volume vxsnap -g <shared_dg> make snapshot_tuple [snapshot_tuple]... [alloc=storage_attributes] vxsnap [-f] -g <shared_dg> dis volume vxsnap -g <shared_dg> addmap volumename count vxsnap -g <shared_dg> print volumename vxsnap -g <shared_dg> list volumename vxsnap -g <shared_dg> syncwait snapvol vxsnap -g <shared_dg> snapwait vxsnap -g <shared_dg> refresh snapvol source=volume vxsnap -g <shared_dg> restore target source=volname vxsnap -g <shared_dg> split volumename vxsnap -g <shared_dg> reattach volname source=volname |
vxsnptadm | vxsnptadm -g <shared_dg> create vol [snptname=snpt] [snapvolname=snapvol] [data={yes|no}] vxsnptadm -g <shared_dg> info vol [snptname=snpt] vxsnptadm -g <shared_dg> remove vol snptname=snpt vxsnptadm -g <shared_dg> removeall vol [cookie=cookie] vxsnptadm -g <shared_dg> rename vol snptname=snpt newname=snpt2 |
vxvol | vxvol -g <shared_dg> set logtype=drl | drlseq volume vxvol -g <shared_dg> start volume vxvol -g <shared_dg> stop volume vxvol -g <shared_dg> {startall|stopall} volume vxvol -g <shared_dg> init enable volume vxvol -g <shared_dg> init active volume vxvol -g <shared_dg> maint volumename vxvol -g <shared_dg> set len volumename vxvol -g <shared_dg> set logtype volumename vxvol -g <shared_dg> set loglen volumename |
vxvset | vxvset -g <shared_dg> make volume-set-name volume-name vxvset -g <shared_dg> addvol volume-set-name volume-name vxvset -g <shared_dg> list volume-set-name vxvset -g <shared_dg> rmvol volume-set-name volume-name vxvset -g <shared_dg> stop volume-set-name vxvset -g <shared_dg> start volume-set-name |
vxevac | vxevac -g <shared_dg> medianame |
vxresize | vxresize [ -Vsb] [-F fstype] -g <shared_dg> volume length |
vxrecover | vxrecover -g <shared_dg> vxrecover -g <shared_dg> volume |
vxckdiskrm | vxckdiskrm -g <shared_dg> medianame |