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
Cluster deployment in a VMware environment- with vMotion support
A cluster deployment in a VMware environment involves in-guest SFW installation.
The following diagram represents in-guest SFW installation with support for VMware vMotion. The application data is stored on the shared disks and the cache area is created on the locally attached SmartDisks.
In the above example, SFW and the application that is configured for high availability is installed on the virtual machines (VM1 and VM2). A VMware cluster is configured between the ESX hosts. Multiple SSDs are locally attached to the individual ESX hosts. Using VxDMP (version 7.1 or later), these SSDs are aggregated to form individual SmartPools. From a SmartPool, multiple SmartDisks are provisioned for caching. A SmartDisk is exposed to a virtual machine as a RAW LUN (Here, SmartDisk1 is attached to VM1 and SmartDisk2 is attached to VM2).
Note:
You can attach only one SmartDisk per virtual machine.
For details about creating and administering SmartPools, and provisioning the SmartDisks, refer to Dynamic Multi-Pathing Administrator's Guide
After vMotion, the first I/O to the cache area fails and the request is forwarded to the back-end storage (data disks). SFW considers the I/O failure as a vMotion event and informs the VxDMP layer to allocate a SmartDisk of the required capacity. After the VxDMP layer allocates the SmartDisk, SFW retrieves the cache area details from the registry and creates a similar cache area on the SmartDisk. This newly created cache area is assigned to the virtual machine after vMotion.
Note:
If the cache area is offline during vMotion, SFW does not recreate the cache area on the SmartDisk attached to the target host. Admin intervention is required to bring the cache area online. After the cache is brought online the subsequent I/O fails. This I/O failure is considered as a vMotion case and SFW accordingly initiates the further process.