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
Online monitoring window features
The Online Monitoring window displays real-time statistics for storage objects you select. It can include disks, subdisks, and volumes. To access the Online Monitoring window, select Statistics>Online Monitoring from the Tools menu, then select the storage objects to monitor in a preliminary window that comes up, and click OK.
The Online Monitoring window collects statistics as long as you have it open. The window can operate in the background. You can do other commands while the window is open. When you set up the real-time statistics, you can change the refresh rate, the time interval of the refresh of the screen display. The default is 5 seconds. The statistics are computed continuously in the background.
The Online Monitoring window is organized as follows:
Name
The first column contains the names of the storage objects that have been selected for monitoring. Thus, each row contains the statistical data on a selected storage object.
Hot Spot
The second column has a pie symbol that is designed to be used as an indicator for hot spot detection. A hot spot is an area of high I/O activity that may cause bottlenecks in I/O throughput. The color and shading of each pie symbol indicate the current state of I/O activity for the associated storage object. The pie symbol for the highest amount of I/O activity, Critical activity, is red and fully shaded, making it easy to notice on the screen. You can select the statistical parameters you want to use for hot spot detection.
Statistical Parameters
The remaining columns represent the different statistical parameters available in the program. By default, Read Requests per Second, Write Requests per Second, Read and Write Requests per Second, Read and Write Blocks per Second, and Queue Depth are selected, but you can select any of the nine statistical parameters.
Legend for the Hot Spot Indicator
The legend at the bottom of the window describes the four pie symbol categories for the hot spot indicator. The table below gives more detail on these categories. If the pie symbol indicator displays the High or Critical category, it signals the fact that you have a hot spot - that is, an area of high I/O activity.
Table: Explanation of the pie symbol categories for hot spot indicator
I/O Activity | Pie Symbol | Subdisk I/O | Dynamic Disk I/O |
---|---|---|---|
Low | Blue Small section in pie | Does not apply | More than 30% below average if it is not below minimum I/O threshold |
Normal | Green Section less than half of pie | 80% or less of parent disk I/O | 30% below average up to 30% above average |
High | Yellow Section more than half of pie | 81% to 90% of parent disk I/O | 31% to 50% above average |
Critical | Red Color in all of pie | More than 90% of parent disk I/O | More than 50% above average |
Context Menu
If you right-click any row in the Online Monitoring window, a context menu appears with the following two menu choices relating to the storage object being monitored:
Graph Historical Statistics Information
Remove Object from Online Monitoring
The first menu choice is grayed out unless you have previously selected that storage object for historical statistics monitoring.
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