Storage Foundation 8.0.2 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 Enterprise Vault
- Using the VSS snapshot wizards with Microsoft SQL
- Copy on Write (COW)
- 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
- Volume Encryption
- 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
- Appendix C. Executive Order logging
vxstat
The vxstat utility has keywords and operands for displaying statistics for dynamic disks, dynamic volumes, and subdisks of dynamic volumes. It can also display statistics at specified intervals and for specified numbers of times.
Typing the following sequence brings up a description of its syntax:
vxstat <Keyword> -?
vxstat [-g<DynamicDiskGroupName>] [-s] [-d] [-v] [-i<Interval>] [-c<Count>] [<Object>...]
The following attributes apply:
-g<DynamicDiskGroupName> | Name of the dynamic disk group from which the records are selected. For example, -gDynDskGrp1. |
[<Object>...] | An object can be a disk or a volume (specified by the volume name or drive letter). If no object is specified, the statistics apply to all the volumes on the managed server. Multiple objects are separated by a space. |
[-s] | Displays the statistics for subdisks on the objects specified. If the object specified is a disk, all subdisks on that disk are selected. If the object specified is a volume, all subdisks on that volume are selected. |
[-d] | Displays the statistics for disks on the objects specified. |
[-v] | Displays the statistics for volumes on the objects specified. |
[-i<Interval>] | Displays the statistics every <Interval> seconds. The default and minimum interval is 5 seconds between the instances that the statistics are displayed. |
[-c<Count>] | Stops displaying the interval statistics after <Count> times. |
If the -i<Interval> option is specified without the -c<Count> option, the statistics runs continuously with the interval specified. If neither the -i<Interval> option nor the -c<Count> option is specified, the statistics display once.
Summary statistics for each object are displayed in one-line output records, preceded by two header lines. The output line consists of blank-separated fields for the object type and object name.
Statistics Types
The statistics types are as follows:
Read Requests/Second
The number of read requests per second for selected storage objects.
Write Requests/Second
The number of write requests per second for selected storage objects.
Read Blocks/Second
The amount of read request data (in blocks per second) that is processed for selected storage objects. It is the throughput on the read requests made.
Write Blocks/Second
The amount of write request data (in blocks per second) that is processed for selected storage objects. It is the throughput on the write requests made.
Average Time/Read Block
The average time in microseconds that it takes to process a read block from the time a request is made until the data is returned.
Average Time/Write Block
The average time in microseconds that it takes to process a write block from the time a request is made until the data is returned.
Queue Depth
The current number of read and write requests in the queue for selected disks. It does not apply to volumes and subdisks.
You can use these statistics to improve performance on your system.
Examples
vxstat -s
Displays the statistics for all subdisks on a managed server.
vxstat -d Harddisk5 Harddisk6
Displays the statistics for Harddisk5 and Harddisk6
vxstat -s E:
Displays the statistics for the subdisks of volume E.
vxstat -i 10 -c 5 -d
Displays 5 sets of statistics at 10-second intervals for all the disks on the managed server.
vxstat -d F:
Displays the statistics for the disks that are associated with volume F.
vxstat -v Harddisk5
Displays the statistics for the volumes that are associated with Harddisk5.
vxstat -gDynDskGrp1 -v
Displays the statistics for all volumes in DynDskGrp1.
vxstat -s F: G: H: Harddisk7
Displays the subdisk statistics for volumes F, G, H, and for Harddisk7.
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