| LSCSS(8) | System Manager's Manual | LSCSS(8) |
NAME¶
lscss - list channel subsystem devices.SYNOPSIS¶
- lscss <options> [RANGE]
DESCRIPTION¶
The lscss command is used to list all or a subset of devices that are managed by the common I/O subsystem.[RANGE]¶
Limit output to a range of subchannels by specifying multiple identifiers as a comma-separated list or a range or a combination of both, e.g.0.0.1234-0.0.1235,4711
Note that ranges may also be separated by spaces.
OPTIONS¶
- -s|--short
- Shorten IDs by removing leading "0.0.". Note: only IDs beginning with "0.0." will be displayed in this case.
- -t|--devtype <devtype>[/<model>][,...]
- For IO subchannels, limit output to devices of the given device type (e.g. 3390).
- -d|--devrange
- Indicate that RANGE refers to device identifiers.
- --avail
- Show availability attribute of IO devices.
- --vpm
- Show verified path mask. VPM is an internal path mask used by Linux. A channel path can be used by Linux device drivers to do IO if the corresponding bit is set in the VPM. Events that can lead to a channel path not being available include:
- •
- The corresponding bit is not set in at least one of the PIM, PAM, or POM masks.
- •
- The channel path is varied offline.
- •
- Linux received no interrupt to IO using this channel path.
- -v|--version
- Print the version of the s390-tools package and the command.
- -h|--help
- Print help text.
- -u|--uppercase
- Print values using uppercase.
- --io
- Show IO subchannels. (default)
- --chsc
- Show CHSC subchannels.
- --eadm
- Show EADM subchannels.
- -a|--all
- Show subchannels of all types.
EXAMPLES¶
lscssList all devices that are managed by the common I/O
subsystem.
lscss -t 3390
Same as above but shows only 3390 devices.
NOTES¶
In rare situations a device might temporarily not be accessible to the subchannel. Then "none" is displayed as the device identifier and the other device attributes are empty.AUTHOR¶
This man-page was written by Stefan Bader <shbader@de.ibm.com>. New options added by Sebastian Ott <sebott@linux.vnet.ibm.com>.
SEE ALSO¶
chccwdev(8)| Mar 2009 | s390-tools |