lsbackenddisktypes

Use the lsbackenddisktypes command to list the types of back-end disks and their average input/output.

This command is available for the following storage systems:
  • Storwize® V7000
  • SAN Volume Controller

Syntax


1  tpctool lsbackenddisktypes  -user  user_name -pwd  password   -url  url?  -fs  character?  -header ?  -help?  -qs  character?   -silent?  -grouping

Parameters and arguments

-user user_name
Specifies an IBM Spectrum Control™ user ID.
-pwd password
Specifies the password for the IBM Spectrum Control user ID.
-url url
Specifies the Device server. The format of the URL is system:port_number, where system represents either the host name or IP address, and port_number represents the IBM Spectrum Control Device server port.
-fs character
Specifies the 7-bit character that separates the information in the output. If you omit this parameter, the information is separated by blank spaces.
-header
Suppresses the column headings in the output. If you omit this parameter, the column headings are included.
-help | -h | -?
Lists help information for the command.
-qs character
Specifies the 7-bit character that surrounds character strings and date stamps in the output. If you omit this parameter, character strings and date stamps are enclosed by double quotation marks (").
-silent
Suppresses all output for the command. If you omit this parameter, output is included.
-grouping
Enables the grouping of numeric values. For example, in English the value 12000 would display as 12,000. The grouping character is determined by the system locale.

Example: Listing back-end disk types

The following command lists the types of back-end disks:

tpctool> lsbackenddisktypes
If the command is successful, a list of the types of back-end disks is displayed.
Back-end Disk Type   Description                             IOPS
====================================================================
A07                 "Sata - 7 500 rpm"                      40
F10                 "Fiber - 10 000 rpm"                    120
F15                 "Fiber - 15 000 rpm"                    150
DEFAULT             "DEFAULT TYPE FOR UNCONFIGURED DEVICES" 0
When you issue the lsbackenddisktypes command, the following information is displayed.
Backend Disk Type
The type of back-end disk. For example: A07
Description
A description of the type of back-end disk. For example: Sata - 7500 rpm
IOPS
Input/Output (I/O) per second. The average number of input/output operations per second for the disk.
Tip: Use the setbackenddisktype command to set or update the type of a back-end disk.