Storage Foundation Cluster File System High Availability 7.2 Administrator's Guide - Solaris
- Section I. Introducing Storage Foundation Cluster File System High Availability
- Overview of Storage Foundation Cluster File System High Availability
- About Veritas File System
- About Storage Foundation Cluster File System (SFCFS)
- How Dynamic Multi-Pathing works
- How DMP works
- How Veritas Volume Manager works
- How Veritas Volume Manager works with the operating system
- How Veritas Volume Manager handles storage management
- Volume layouts in Veritas Volume Manager
- Online relayout
- Volume resynchronization
- Dirty region logging
- Volume snapshots
- FastResync
- How VxVM handles hardware clones or snapshots
- How Veritas File System works
- How Storage Foundation Cluster File System High Availability works
- About Storage Foundation Cluster File System High Availability architecture
- About Veritas File System features supported in cluster file systems
- About single network link and reliability
- About I/O fencing
- About preventing data corruption with I/O fencing
- About I/O fencing components
- About server-based I/O fencing
- About secure communication between the SFCFSHA cluster and CP server
- How Cluster Volume Manager works
- Overview of clustering
- Cluster Volume Manager (CVM) tolerance to storage connectivity failures
- Storage disconnectivity and CVM disk detach policies
- CVM initialization and configuration
- Dirty region logging in cluster environments
- Multiple host failover configurations
- About Flexible Storage Sharing
- Overview of Storage Foundation Cluster File System High Availability
- Section II. Provisioning storage
- Provisioning new storage
- Advanced allocation methods for configuring storage
- Customizing allocation behavior
- Using rules to make volume allocation more efficient
- Understanding persistent attributes
- Customizing disk classes for allocation
- Specifying allocation constraints for vxassist operations with the use clause and the require clause
- Creating volumes of a specific layout
- Customizing allocation behavior
- Creating and mounting VxFS file systems
- Creating a VxFS file system
- Mounting a VxFS file system
- tmplog mount option
- ioerror mount option
- largefiles and nolargefiles mount options
- Resizing a file system
- Monitoring free space
- Extent attributes
- Section III. Administering multi-pathing with DMP
- Administering Dynamic Multi-Pathing
- Discovering and configuring newly added disk devices
- About discovering disks and dynamically adding disk arrays
- How to administer the Device Discovery Layer
- Administering DMP using the vxdmpadm utility
- Gathering and displaying I/O statistics
- Specifying the I/O policy
- Managing DMP devices for the ZFS root pool
- Discovering and configuring newly added disk devices
- Dynamic Reconfiguration of devices
- Reconfiguring a LUN online that is under DMP control using the Dynamic Reconfiguration tool
- Manually reconfiguring a LUN online that is under DMP control
- Managing devices
- Displaying disk information
- Changing the disk device naming scheme
- Adding and removing disks
- Event monitoring
- Administering Dynamic Multi-Pathing
- Section IV. Administering Storage Foundation Cluster File System High Availability
- Administering Storage Foundation Cluster File System High Availability and its components
- Administering CFS
- About the mount, fsclustadm, and fsadm commands
- When the CFS primary node fails
- About Snapshots on SFCFSHA
- Administering VCS
- Administering CVM
- About setting cluster node preferences for master failover
- About changing the CVM master manually
- Importing disk groups as shared
- Administering Flexible Storage Sharing
- Administering ODM
- About administering I/O fencing
- About the vxfentsthdw utility
- Testing the coordinator disk group using the -c option of vxfentsthdw
- About the vxfenadm utility
- About the vxfenclearpre utility
- About the vxfenswap utility
- About administering the coordination point server
- About migrating between disk-based and server-based fencing configurations
- Migrating between fencing configurations using response files
- About the vxfentsthdw utility
- Administering SFCFSHA global clusters
- Using Clustered NFS
- Understanding how Clustered NFS works
- Configure and unconfigure Clustered NFS
- Reconciling major and minor numbers for NFS shared disks
- Administering Clustered NFS
- Samples for configuring a Clustered NFS
- Using Common Internet File System
- Deploying Oracle with Clustered NFS
- Administering sites and remote mirrors
- About sites and remote mirrors
- Fire drill - testing the configuration
- Changing the site name
- Administering the Remote Mirror configuration
- Failure and recovery scenarios
- Administering Storage Foundation Cluster File System High Availability and its components
- Section V. Optimizing I/O performance
- Section VI. Veritas Extension for Oracle Disk Manager
- Using Veritas Extension for Oracle Disk Manager
- About Oracle Disk Manager
- About Oracle Disk Manager and Oracle Managed Files
- Using Cached ODM
- Using Veritas Extension for Oracle Disk Manager
- Section VII. Using Point-in-time copies
- Understanding point-in-time copy methods
- When to use point-in-time copies
- About Storage Foundation point-in-time copy technologies
- Volume-level snapshots
- Storage Checkpoints
- About FileSnaps
- About snapshot file systems
- Administering volume snapshots
- Traditional third-mirror break-off snapshots
- Full-sized instant snapshots
- Creating instant snapshots
- Adding an instant snap DCO and DCO volume
- Controlling instant snapshot synchronization
- Creating instant snapshots
- Cascaded snapshots
- Adding a version 0 DCO and DCO volume
- Administering Storage Checkpoints
- Storage Checkpoint administration
- Administering FileSnaps
- Administering snapshot file systems
- Understanding point-in-time copy methods
- Section VIII. Optimizing storage with Storage Foundation Cluster File System High Availability
- Understanding storage optimization solutions in Storage Foundation Cluster File System High Availability
- Migrating data from thick storage to thin storage
- Maintaining Thin Storage with Thin Reclamation
- Reclamation of storage on thin reclamation arrays
- Identifying thin and thin reclamation LUNs
- Veritas InfoScale 4k sector device support solution
- Section IX. Maximizing storage utilization
- Understanding storage tiering with SmartTier
- Creating and administering volume sets
- Multi-volume file systems
- Features implemented using multi-volume file system (MVFS) support
- Adding a volume to and removing a volume from a multi-volume file system
- Volume encapsulation
- Load balancing
- Administering SmartTier
- About SmartTier
- Placement classes
- Administering placement policies
- File placement policy rules
- Multiple criteria in file placement policy rule statements
- Using SmartTier with solid state disks
- Sub-file relocation
- Administering hot-relocation
- How hot-relocation works
- Moving relocated subdisks
- Deduplicating data on Solaris SPARC
- Compressing files
- About compressing files
- Use cases for compressing files
- Section X. Administering storage
- Managing volumes and disk groups
- Rules for determining the default disk group
- Moving volumes or disks
- Monitoring and controlling tasks
- Performing online relayout
- Adding a mirror to a volume
- Managing disk groups
- Disk group versions
- Displaying disk group information
- Importing a disk group
- Moving disk groups between systems
- Importing a disk group containing hardware cloned disks
- Handling conflicting configuration copies
- Destroying a disk group
- Backing up and restoring disk group configuration data
- Managing plexes and subdisks
- Decommissioning storage
- Rootability
- Encapsulating a disk
- Rootability
- Administering an encapsulated boot disk
- Quotas
- Using Veritas File System quotas
- File Change Log
- Managing volumes and disk groups
- Section XI. Reference
- Appendix A. Reverse path name lookup
- Appendix B. Tunable parameters
- Tuning the VxFS file system
- Methods to change Dynamic Multi-Pathing tunable parameters
- Tunable parameters for VxVM
- Methods to change Veritas Volume Manager tunable parameters
- About LLT tunable parameters
- About GAB tunable parameters
- About VXFEN tunable parameters
- Appendix C. Veritas File System disk layout
- Appendix D. Command reference
- Appendix E. Creating a starter database
Moving objects between disk groups
To move a self-contained set of VxVM objects from an imported source disk group to an imported target disk group, use the following command:
# vxdg [-o expand] [-o override|verify] move sourcedg targetdg \ object ...
The -o expand option ensures that the objects that are actually moved include all other disks containing subdisks that are associated with the specified objects or with objects that they contain.
The default behavior of vxdg when moving licensed disks in an EMC array is to perform an EMC disk compatibility check for each disk involved in the move. If the compatibility checks succeed, the move takes place. vxdg then checks again to ensure that the configuration has not changed since it performed the compatibility check. If the configuration has changed, vxdg attempts to perform the entire move again.
Note:
You should only use the -o override and -o verify options if you are using an EMC array with a valid timefinder license. If you specify one of these options and do not meet the array and license requirements, a warning message is displayed and the operation is ignored.
The -o override option enables the move to take place without any EMC checking.
The -o verify option returns the access names of the disks that would be moved but does not perform the move.
The following output from vxprint shows the contents of disk groups rootdg and mydg.
The output includes two utility fields, TUTIL0 and PUTIL0. VxVM creates these fields to manage objects and communications between different commands and Veritas InfoScale products. The TUTIL0 values are temporary; they are not maintained on reboot. The PUTIL0 values are persistent; they are maintained on reboot.
# vxprint Disk group: rootdg TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0 dg rootdg rootdg - - - - - - dm rootdg02 c1t97d0s2 - 17678493 - - - - dm rootdg03 c1t112d0s2 - 17678493 - - - - dm rootdg04 c1t114d0s2 - 17678493 - - - - dm rootdg06 c1t98d0s2 - 17678493 - - - - Disk group: mydg TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0 dg mydg mydg - - - - - - dm mydg01 c0t1d0s2 - 17678493 - - - - dm mydg05 c1t96d0s2 - 17678493 - - - - dm mydg07 c1t99d0s2 - 17678493 - - - - dm mydg08 c1t100d0s2 - 17678493 - - - - v vol1 fsgen ENABLED 2048 - ACTIVE - - pl vol1-01 vol1 ENABLED 3591 - ACTIVE - - sd mydg01-01 vol1-01 ENABLED 3591 0 - - - pl vol1-02 vol1 ENABLED 3591 - ACTIVE - - sd mydg05-01 vol1-02 ENABLED 3591 0 - - -
The following command moves the self-contained set of objects implied by specifying disk mydg01 from disk group mydg to rootdg:
# vxdg -o expand move mydg rootdg mydg01
By default, VxVM automatically recovers and starts the volumes following a disk group move. If you have turned off the automatic recovery feature, volumes are disabled after a move. Use the following commands to recover and restart the volumes in the target disk group:
# vxrecover -g targetdg -m [volume ...] # vxvol -g targetdg startall
The output from vxprint after the move shows that not only mydg01 but also volume vol1 and mydg05 have moved to rootdg, leaving only mydg07 and mydg08 in disk group mydg:
# vxprint Disk group: rootdg TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0 dg rootdg rootdg - - - - - - dm mydg01 c0t1d0s2 - 17678493 - - - - dm rootdg02 c1t97d0s2 - 17678493 - - - - dm rootdg03 c1t112d0s2 - 17678493 - - - - dm rootdg04 c1t114d0s2 - 17678493 - - - - dm mydg05 c1t96d0s2 - 17678493 - - - - dm rootdg06 c1t98d0s2 - 17678493 - - - - v vol1 fsgen ENABLED 2048 - ACTIVE - - pl vol1-01 vol1 ENABLED 3591 - ACTIVE - - sd mydg01-01 vol1-01 ENABLED 3591 0 - - - pl vol1-02 vol1 ENABLED 3591 - ACTIVE - - sd mydg05-01 vol1-02 ENABLED 3591 0 - - - Disk group: mydg TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0 dg mydg mydg - - - - - - dm mydg07 c1t99d0s2 - 17678493 - - - - dm mydg08 c1t100d0s2 - 17678493 - - - -
The following commands would also achieve the same result:
# vxdg move mydg rootdg mydg01 mydg05 # vxdg move mydg rootdg vol1
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