7.7 UX Block IO

The UX Block IO object provides counters for monitoring the processing activity on UNIX systems.

For counters that accept a block IO device instance, block IO device names are available in the Operator Console. For example, to monitor the average number of kilobytes read per second from the block IO device scanner, type:

UX Block IO|Kilobytes Read/s|scanner

To monitor a counter for all block IO devices instead of a particular device, such as average number of transfer operations waiting, type:

UX Block IO|Average # of Trans. Waiting|_Total

The following table describes the counters for the UX Block IO object.

Counter Name

Description

Platforms

Reads/s

Number of read operations per second. For all platforms, specify one of the following as the instance:

  • a block IO device name

  • _Total (for all instances).

  • HP-UX
  • Linux
  • Solaris

Writes/s

Number of write operations per second. For all platforms, specify one of the following as the instance:

  • a blockIO device name

  • _Total (for all instances).

  • HP-UX
  • Linux
  • Solaris

Kilobytes Read/s

Average number of kilobytes transferred from the disk per second during read operations. Specify one of the following as the instance:

  • a block IO device name

  • _Total (for all instances).

HP-UX

Kilobytes Write/s

Average number of kilobytes transferred from the disk per second during write operations. Specify one of the following as the instance:

  • a block IO device name

  • _Total (for all instances).

HP-UX

Average # of Trans. Waiting

Average number of disk transfer operations that are waiting. For either platform, specify one of the following as the instance:

  • a block IO device name

  • _Total (for all instances).

  • Linux
  • Solaris

Average # of Trans. Serviced

Average number of disk transfer operations that are serviced. Specify one of the following as the instance:

  • a block IO device name

  • _Total (for all instances).

Solaris

%Time Trans. Waiting

Percentage of time that input/output transfers are waiting. Specify one of the following as the instance:

  • a block IO device name

  • _Total (for all instances).

Solaris

%Time Disk Busy

Percentage of time that the disk is busy with read or write operations. For either platform, specify one of the following as the instance:

  • a block IO device name

  • _Total (for all instances).

  • Linux
  • Solaris