Page History
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- About the Storage Unit entity
- About the Symmetrix Unit entity
- About the Symmetrix Device entity
- About the Devices Sharing the Same Policy***
- About the Devices Sharing the Same Pool***
- About the Symmetrix Disk Director entity
- About the Symmetrix Front End Director entity
- About the Symmetrix Remote Director entity
- About the Clariion Unit entity
- About the Clariion Device entity
- About the Pools entity
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The Symmetrix Disk Director entity displays general details and I/O activity of the selected device. The following views are available:■ Overview
- Overview
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- Performance
■ Performance
■ Load
■ Throughput
- Load
- Throughput
About the overview of a disk director
The Overview, in the Objects tab, displays general details of the disk director, such as director ID and director type.
About the performance of a disk director
The Performance view, in the Objects tab, displays two overtime graphs that illustrate the following information:
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- The number of sequential reads and the total number of read and write requests during the selected time period.
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- The read, write, and combined cache hit ratios over the selected time period.
About the load of a disk director
The Load view, in the Objects tab, displays an overtime graph of the megabytes of data read and written during the selected time period.
About the throughput of a disk director
The Throughput view, in the Objects tab, displays an overtime graph that illustrates the I/O rate (requests per second) and the throughput (megabytes per second) during the selected time period.
Associating a disk director with other entities
You can associate a disk director in the Main area of the Objects tab with devices. You can display additional entities by using the More... option.
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The Symmetrix Front End Director entity displays general details and the I/O activity of the selected director.
About getting an overview of the Symmetrix Front End Director
The Overview displays general details of the Symmetrix front-end director, along with the number of I/O requests, hit ratio and I/O rate of the selected front-end director, as follows:Properties
- Properties. Displays general details of the Symmetrix front-end director, such as Director ID, and Director Type.
- Requests.
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- Displays the number of I/O requests for the selected front-end director, over the selected time period,
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- as collected by the Storage agent.
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- Hit Ratio. Displays the hit ratio of the selected front-end director, over the selected time period, as collected by the Storage agent.
- I/O
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- Rate. Displays the I/O rate, of the selected front-end director, over the selected time period, as collected by the Storage agent.
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You can view general details and statistics counters on the entities associated to the selected Symmetrix Front End Director entity in the Association area. It is possible to associate to the Symmetrix Front End Director entity from the Symmetrix Unit and Symmetrix Device entities. The following tabs are displayed:
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- Overview. Displays general details for the selected device.
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- Statistics. Displays I/O statistics for the selected device as collected by the Storage agent.
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The Symmetrix Remote Director entity displays general details and the I/O activity of the selected director.
About getting an overview of the Symmetrix Remote Director
The Overview displays general details of the Symmetrix storage remote director, along with the hit ratio, and I/O rate of the selected remote director, as follows:
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- Properties. Displays general details of the Symmetrix storage remote director such as director ID, and director type.
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- Requests. Displays the number of I/O requests for the selected remote director, over the selected time period, as collected by the Storage agent.
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- Hit
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- Ratio. Displays the hit ratio of the selected remote director, over the selected time period, as collected by the
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- Storage agent.
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- I/O
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- Rate. Displays the I/O rate of the selected remote director, over the selected time period, as collected by the
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- Storage agent.
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About the Symmetrix Remote Director entity Association area
You can view general details and statistics counters on the entities associated to the selected Symmetrix Remote Director entity in the Association area. It is possible to associate to the Symmetrix Remote Director entity from the Symmetrix Storage Unit entity. The following tabs are displayed:
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- Overview. Displays general details for the selected device.
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- Statistics. Displays I/O statistics for the selected device as collected by the Storage agent.
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The Clariion Unit entity displays general details and the I/O activity for the selected unit. The following views are available:■ Overview
- Overview
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- Performance
■ Performance
■ Load
■ Throughput
- Load
- Throughput
About getting an overview of the Clariion unit
The Overview displays general details of the Clariion unit such as its ID, and the number of SQL Server instances connected to it, as follows:
- Requests Displays the number of I/O requests for the selected Clariion unit, over the selected time period, as collected by the Storage agent.
Load Displays the I/O load for the selected Clariion unit, over the selected time period.
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Statistics Displays I/O statistics for the selected device as collected by the Storage agent.
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The Clariion Device entity displays general details and the I/O activity of the selected device. The following views are available:
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