Storage Foundation 8.0 Administrator's Guide - Windows
- Overview
- Setup and configuration
- Function overview
- About the client console for Storage Foundation
- Recommendations for caching-enabled disks
- Configure basic disks (Optional)
- About creating dynamic disk groups
- About creating dynamic volumes
- Set desired preferences
- Using the GUI to manage your storage
- Working with disks, partitions, and volumes
- Adding storage
- Disk tasks
- Remove a disk from the computer
- Veritas Disk ID (VDID)
- General Partition/Volume tasks
- Mount a volume at an empty folder (Drive path)
- Expand a dynamic volume
- Shrink a dynamic volume
- Basic disk and volume tasks
- Automatic discovery of SSD devices and manual classification as SSD
- Volume Manager space allocation is SSD aware
- Dealing with disk groups
- Disk groups overview
- Delete a dynamic disk group
- Detaching and attaching dynamic disks
- Importing and deporting dynamic disk groups
- Partitioned shared storage with private dynamic disk group protection
- Fast failover in clustered environments
- iSCSI SAN support
- Settings for monitoring objects
- Event monitoring and notification
- Event notification
- Configuring Automatic volume growth
- Standard features for adding fault tolerance
- Performance tuning
- FlashSnap
- FlashSnap components
- FastResync
- Snapshot commands
- Dynamic Disk Group Split and Join
- Dynamic disk group join
- Using Dynamic Disk Group Split and Join with a cluster on shared storage
- Dynamic Disk Group Split and Join troubleshooting tips
- Fast File Resync
- Volume Shadow Copy Service (VSS)
- Using the VSS snapshot wizards with Microsoft Exchange
- Using the VSS snapshot wizards with Enterprise Vault
- Using the VSS snapshot wizards with Microsoft SQL
- Copy on Write (COW)
- Using the VSS COW snapshot wizards with Microsoft Exchange
- Using the VSS COW snapshot wizards with Microsoft SQL
- Configuring data caching with SmartIO
- Typical deployment scenarios
- About cache area
- Configuring SmartIO
- Frequently asked questions about SmartIO
- Dynamic Multi-Pathing
- Configuring Cluster Volume Manager (CVM)
- Configuring a CVM cluster
- Administering CVM
- Access modes for cluster-shared volumes
- Storage disconnectivity and CVM disk detach policy
- Unconfiguring a CVM cluster
- Command shipping
- About I/O Fencing
- Administering site-aware allocation for campus clusters
- SFW for Hyper-V virtual machines
- Introduction to Storage Foundation solutions for Hyper-V environments
- Live migration support for SFW dynamic disk group
- Preparing the host machines
- Configuring the SFW storage
- Administering storage migration for SFW and Hyper-V virtual machine volumes
- Optional Storage Foundation features for Hyper-V environments
- Microsoft Failover Clustering support
- Configuring a quorum in a Microsoft Failover Cluster
- Implementing disaster recovery with Volume Replicator
- Troubleshooting and recovery
- Using disk and volume status information
- Resolving common problem situations
- Commands or procedures used in troubleshooting and recovery
- Rescan command
- Repair volume command for dynamic mirrored volumes
- Additional troubleshooting issues
- Disk issues
- Volume issues
- Disk group issues
- Connection issues
- Issues related to boot or restart
- Cluster issues
- Dynamic Multi-Pathing issues
- vxsnap issues
- Other issues
- CVM issues
- Appendix A. Command line interface
- Overview of the command line interface
- vxclustadm
- vxvol
- vxdg
- vxclus
- vxdisk
- vxassist
- vxassist (Windows-specific)
- vxsd
- vxedit
- vxdmpadm
- vxcbr
- vxsnap
- vxscrub
- sfcache
- Tuning SFW
- Appendix B. VDID details for arrays
vxassist break
vxassist [-g<DynamicDiskGroupName>] break <VolumeName |DriveLetter> <plex=PlexName>|<!Diskname |!p#c#t#l#>]
[DriveLetter={A|B|...|Z}|DrivePath=<DrivePath>]
Breaks a mirror from an existing volume. When a mirror is broken, it becomes a separate volume and you lose the fault tolerance that mirroring provides.
The following attributes apply:
-g<DynamicDiskGroupName> | Required only if the internal volume name or internal disk name is used. |
<VolumeName> | The path name of the volume, such as \Device\HarddiskDmVolumes\DG1\Volume1. |
<DriveLetter> | The drive letter of the volume. |
<VmName> | Internal name of the volume; requires the use of the -g option (for example, -gDG1 Volume1). |
plex=<PlexName> | The mirror or plex to be broken off. It can be the plex name (such as Volume2-01) or the GUID of the mirror plex. A GUID is a unique internal number assigned to the plex. To determine the GUID for a given plex, use the command vxvol volinfo for the mirrored volume that contains the plex. If you use a script and have multiple snapshot plexes, then the GUID can distinguish the different snapshot plexes. |
<!DiskName> | The name of the disk, such as Harddisk2, or the internal disk name, which requires the use of the -g option (for example, !-gDG1 Disk2). You can use this attribute as an alternative to the plex name. See the note on the exclamation mark that follows this table. |
<!p#c#t#l#> | Another way to indicate a disk; the #s correspond to port, channel, target, and LUN of the disk. It also requires the !. |
DriveLetter={A|B|...|Z} | Used to assign a specific drive letter to the new volume that is created from the broken-off plex. The drive letter is not automatically assigned. |
DrivePath=<DrivePath> | Used when you want to mount the new volume that is created from the broken-off plex at a folder on a local NTFS volume. You can use this attribute as an alternative to the drive letter. |
Note:
The exclamation mark in front of the DiskName attribute is necessary to make the command compatible with the Volume Manager for UNIX version of the command.
If you do not remember the plex name, you can determine what it is by using the vxvol volinfo command. Alternatively, if you know which disk the plex resides on, you can use the <!DiskName> syntax, for example, !Harddisk2, to specify the plex.
Note:
If you want to delete the mirror instead of breaking it off, see the vxremove command in the section.
Examples
vxassist break H: plex=Volume1-01 DriveLetter=Z
The above command line sequence breaks a mirror from a volume that has been assigned the drive letter H. The specified plex becomes a new volume and receives the drive letter Z. Theoriginal volume retains the drive letter H.
vxassist break\Device\HarddiskDmVolumes\DynDskGrp1\Volume1 plex=Volume1-01 DriveLetter=Z
The above command line sequence is the same as the previous command sequence except that a path name is used to indicate the volume from which the mirror is broken.
vxassist break L: !Harddisk3 DriveLetter=M
This breaks off the mirror that resides on Harddisk3 from volume L and assign drive letter M to the newly created volume.