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
Before shrinking a dynamic volume
Consider the following before shrinking a dynamic volume.
Before performing the volume shrink operation, you must install the KB 2615327 hotfix from Microsoft.
If the combined length of the volume name and disk group name is more than 9 characters, then you must install the KB 2619083 hotfix from Microsoft before shrinking the volume.
You can shrink a volume only if the dynamic volume is either on raw partition (that is, without a file system) or using the NTFS file system.
The volume must be online.
If a volume or degraded volume has any snapshots or detached mirrors, then the volume shrink operation is rejected. To shrink a volume that has been snapshotted, you must first snapback the volume and then shrink the volume. After shrinking a volume, you can snapshot the volume again.
You can neither shrink a volume of less than 1 MB in size nor shrink a volume by less than 1 MB.
You cannot shrink a volume beyond the point where any unmovable files, such as the page file or the shadow copy storage area, are located. Unmovable files are not automatically relocated when you shrink a volume.
If you need to shrink the volume further, move the page file to another disk and delete the stored shadow copies, shrink the volume, and then move the page file back to the disk.
If dynamic bad-cluster remapping detects several bad clusters, then you cannot shrink the volume. If this occurs, then you should move the data and replace the disk.
Shrink Volume does not support read-only volumes.
Volumes of more than 10 GB in size can be shrunk up to 3 GB approximately. In other words, the new size of the volume must be at least 3 GB approximately.
Shrink Volume is not allowed during a mirror resynchronization, sub disk move, or thin reclamation.
If a volume shrink fails after a successful file system shrink, it leaves the file system in shrunk state. However, the volume remains of the original size.
For a workaround, refer to Known Issue 2385051 in the Veritas InfoScale Release Notes.
The time taken by the volume shrink operation depends on the size of the volume and the time required to relocate the files.
During the volume shrink operation, if the deport disk group operation is performed, either by the user or because of a failover, then the volume shrink operation is canceled.