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
Disabling I/O for paths, controllers, array ports, or DMP nodes
Disabling I/O through a path, HBA controller, array port, or Dynamic Multi-Pathing (DMP) node prevents DMP from issuing I/O requests through the specified path, or the paths that are connected to the specified controller, array port, or DMP node. If the specified paths have pending I/Os, the vxdmpadm disable command waits until the I/Os are completed before disabling the paths.
Note:
From release 5.0 of Veritas Volume Manager (VxVM), this operation is supported for controllers that are used to access disk arrays on which cluster-shareable disk groups are configured.
Before detaching a system board, stop all I/O to the HBA controllers that are located on the board. To do this, execute the vxdmpadm disable command, and then run the Dynamic Reconfiguration (DR) facility provided by Oracle.
DMP does not support the operation to disable I/O for the controllers that use Third-Party Drivers (TPD) for multi-pathing.
To disable I/O for one or more paths, use the following command:
# vxdmpadm [-c|-f] disable path=path_name1[,path_name2,path_nameN]
To disable I/O for the paths connected to one or more HBA controllers, use the following command:
# vxdmpadm [-c|-f] disable ctlr=ctlr_name1[,ctlr_name2,ctlr_nameN]
To disable I/O for the paths connected to an array port, use one of the following commands:
# vxdmpadm [-c|-f] disable enclosure=enclr_name portid=array_port_ID # vxdmpadm [-c|-f] disable pwwn=array_port_WWN
where the array port is specified either by the enclosure name and the array port ID, or by the array port's worldwide name (WWN) identifier.
The following examples show how to disable I/O on an array port:
# vxdmpadm disable enclosure=HDS9500V0 portid=1A # vxdmpadm disable pwwn=20:00:00:E0:8B:06:5F:19
To disable I/O for a particular path, specify both the controller and the portID, which represent the two ends of the fabric:
# vxdmpadm [-c|-f] disable ctlr=ctlr_name enclosure=enclr_name \ portid=array_port_ID
To disable I/O for a particular DMP node, specify the DMP node name.
# vxdmpadm [-c|-f] disable dmpnodename=dmpnode
You can use the -c option to check if there is only a single active path to the disk.
The last path disable operation fails without -f option irrespective whether the device is in use or not.
The disable operation fails if it is issued to a controller that is connected to the root disk through a single path, and there are no root disk mirrors configured on alternate paths. If such mirrors exist, the command succeeds. The disable operation fails if it is issued to a controller that is connected to the swap device through a single path.