NAME¶

lstape - list tape devices.

SYNOPSIS¶

lstape

[-h|--help] [--scsi-only|--ccw-only] [-v|--version] [-V|--verbose]
[--online|--offline] [-s]
[-t <device-type>[,<device-type>]...]
[<device-bus-ID>...]

DESCRIPTION¶

The lstape command lists all available tape devices on the current host. For channel attached tape devices this output is the same as the contents of /proc/tapedevices (which is obsolete) but also includes offline devices. By default all tape devices are displayed.

The lstape command without the --ccw-only option causes extra SAN traffic for each SCSI tape or changer device by invoking the sg_inq command.

OPTIONS¶

-h or --help

Print help text.

-v or --version

Print the version of the s390-tools package and the command.

-V or --verbose

Adds additional information that does not fit into a single line of output. This is currently only used for SCSI devices.

--scsi-only|--ccw-only

Limit output to either SCSI or channel attached tape devices. The output without SCSI devices is the same as it was with previous versions of this command.

-s|--shortid

Using this option will list only tape devices that are in channel subsystem 0, with subchannel set 0. All other devices will be suppressed and the leading "0.0." for bus IDs of the remaining devices will be removed. Since this is specific to CCW devices this option has no effect on the output of SCSI tape devices.

--online|--offline

Limit output to either online or offline devices. This filter has no effect on the output of SCSI devices.

-t|--type <device-type>

Limit output to given device types, for example 3490 (currently only applies to channel-attached tape devices).

<device-bus-ID>

Limits the output to information about the specified tape device or devices only. For CCW-attached devices only.

OUTPUT FIELDS FOR SCSI TAPE/CHANGER DEVICES¶

Generic

SCSI generic device file for the tape drive, for example /dev/sg0. "N/A" if the SCSI generic (sg) kernel functionality is not available.

Device

Main character device node file for accessing the tape drive or medium changer. SCSI tape devices are only visible if they are known to the SCSI layer. There are at least two possible drivers that can claim a SCSI tape device. The lstape command tries to determine the device driver. For the generic tape and changer driver the device names start with "st" or "sch", while for the IBM tape driver this would be "IBMtape" or "IBMchanger". If "N/A" is shown, the device driver could not be determined.

Target

Linux SCSI device name in H:C:T:L format.

Vendor

The vendor field from the SCSI device.

Model

The model field from the SCSI device.

Type

"tapedrv" for a tape drive or "changer" for a medium changer.

State

The state of the SCSI device object in the kernel. Any state other than "running" can indicate problems.

For SCSI devices, the --verbose option additionally displays:

HBA

The device bus-ID of the FCP device or of the virtio-scsi-ccw virtual HBA through which the tape drive is attached. "N/A" if the device does not have a sysfs ancestor with subsystem ccw.

WWPN

The WWPN (worldwide port name) of the tape drive in the SAN. "N/A" if device is not attached through zfcp.

Serial

The serial number. "NO/INQ" if there is no sg_inq command available. "NO/SG" if no SCSI generic (sg) kernel support is available.

EXAMPLES¶

lstape

lstape --ccw-only -t 3490 --online

lstape --scsi-only --verbose