Disk Central Display

Disk data is provided through two different Displays, with each one based on the Prognosis Server platform.

MS Windows

The Disk Central Display makes use of the NtPhysicalDisk (NTPHDISK) record to provide a summary of physical and logical disk space and current processing loads. A logical disk is a partition on a physical hard or fixed disk drive that has an assigned drive letter, such as C. Physical disks can be partitioned into one or more logical partitions where they can store file, program, and page data.

This Display can be accessed from the Windows Server Overview Display by clicking on the Disk link in the 'Server Navigation' window.

The table, on the right, shows a list of the logical drives that are being monitored. The data provided shows the space that is free, has been used and total capacity (in megabytes) on each logical drive.

The graph in the bottom window shows the percentage of elapsed time that the monitored physical disk drives are busy servicing read or write requests.

Links

Windows Server Central

Opens the Windows Server Overview Display which provides an overview of all the server operations.

Storage Central

Opens the Storage Central Display that provides free space details on all monitored logical disk drives.

Partition Performance Overview

Opens the Partition Performance Overview Display. This Display provides a graph of the rate of read and write operations on the logical disk drive together with a chart showing detailed operations such as queue lengths, reads per second, writes per second and average write duration times.

UNIX/Linux

The Disk Performance Central Display makes use of the UnixPhysicalVolume (UXPHYVOL) record to provide I/O statistics for each physical volume on the system. A physical volume is a hard or fixed disk drive that contains one or more logical partitions.

This Display can be accessed from the UNIX Server Overview Display by clicking on the Disk link in the 'Server Navigation' window.

The various tables and graphs on this Display provide data showing the percentage of time that the Disks are busy servicing requests, the maximum time spent servicing a single request, the number of data transfers per second and the current number of outstanding requests.

Links

Disk Details

Clicking this link will open the UNIX Physical Disk Details Display. This Display provides details of each configured disk on the device.

UNIX Central

Clicking this link will open the UNIX Central Display. This Display provides a menu giving access to a range of other UNIX monitoring metrics.

Storage Central

Opens the Storage Central Display that provides free space details on all monitored logical disk drives.

HPE NonStop

A physical disk object is a hard or fixed disk drive that contains one or more logical partitions. The Disk Central Display makes use of the NonStopVolume (VOLUME) record to provide a summary of physical and logical disk space and current processing loads.

This Display can be accessed from the NonStop Server Overview Display by clicking on the Disk link in the 'Server Navigation' window.

The table in the bottom window shows the disks volume details sorted by I/O rate.

Links

Yesterday

This link will open the Disk I/O Yesterday Display which contains a number of charts showing Disk I/O metrics.

Today

This link will open the Disk I/O Today Display which contains a number of charts showing Disk I/O metrics.

Storage Central

Opens the Storage Central Display that provides free space details on all monitored logical disk drives.