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
FlashSnap overview
Veritas FlashSnap is a multi-step process that lets you create independently addressable snapshot volumes that are copies or mirrors of the volumes on your server. These snapshots can be used for backup, application testing, or reporting and analysis. One of the main advantages of using FlashSnap is that the snapshot volumes can be easily moved to another server. Thus, backup or other processing can be performed on another server without affecting the performance of applications on the applications server.
With Storage Foundation (SFW), you can also create simultaneous, multiple split-mirror snapshots. These snapshots can be done either through the VEA GUI or through the vxsnap CLI command.
Note:
FlashSnap is available only with the Enterprise edition. See the "Licensing" section in the Veritas InfoScale Installation and Upgrade Guide for details.
SFW supports both traditional full snapshots or Microsoft Copy on Write (COW) snapshots. The VEA GUI or the vxsnap CLI utility can be used to take COW snapshots. Microsoft COW snapshots are faster than full snapshots and take up less storage space because COW snapshots use a shadow copy that is differential. The initial state of the original volume can be reconstructed using the blocks in the differences area and unchanged blocks in the original volume.
SFW provides support for taking snapshots of Microsoft SQL databases and Microsoft Exchange mailbox databases. FlashSnap integrates with the Microsoft Volume Shadow Copy Service (VSS) to allow snapshots to be taken of all the volumes that are associated with an SQL or Exchange database without taking the database offline.
The VSS Snapshot wizard and the vxsnap CLI command both use VSS and either can be used to take snapshots of storage groups. The VSS process allows the storage group's databases to be quiesced before the snapshot operation and reactivates them immediately after. The quiescing at the storage group level allows for Microsoft supported and guaranteed persistent snapshots of the data. Snapshots of the storage groups can be reattached and resynchronized to match the current state of the storage group with the VSS Snapback wizard or the vxsnap reattach CLI command.
SFW also provides a VSS Snapshot Scheduler Wizard that enables you to set up a schedule for automating the snapback process.
At the scheduled time for the snapshot, the snapshot volumes are automatically reattached, resynchronized, and then snapshotted again. A scheduler service, VxSchedService.exe, that runs in the background, maintains the schedule.
Fast File Resync is a feature that uses Veritas FastResync technology to resynchronize selected files in a snapshotted volume to the original volume. It is designed for database applications using volumes with multiple database files and can be used to restore one or more corrupt files.
Note:
Dynamic disks belonging to a Microsoft Disk Management Disk Group do not support FlashSnap or SFW VSS-related commands.