scsimgr SCSI Management and Diagnostics utility on HP-UX 11i v3 (March 2008)

Displaying hardware path, device file, WWID and serial number for all devices, in scriptable
output
# scsimgr -p get_attr all_lun -a hw_path -a device_file -a wwid -a serial_number
64000/0xfa00/0x0:/dev/rdisk/disk15:0x0004cffffebbf737:3FD1M2SW
64000/0xfa00/0x1:/dev/rdisk/disk16:0x0004cffffebbe43e:3FD1LZ0S
64000/0xfa00/0x2:/dev/rdisk/disk17::
64000/0xfa00/0x3:/dev/rdisk/disk18:0x20000020371972ee:LS255190000010080N0V
64000/0xfa00/0x4:/dev/rdisk/disk19:0x20000020371972e3:LS271211000010080N1H
64000/0xfa00/0x5:/dev/rdisk/disk20:0x20000020371972eb:LS24603100001008K74M
64000/0xfa00/0x6:/dev/rdisk/disk21:0x200000203726a3af:LJS87900000029491GWF
64000/0xfa00/0x7:/dev/rdisk/disk22:0x20000020370fe8c8:LJ67387800002916H9A9
64000/0xfa00/0x8:/dev/rdisk/disk23:0x200000203726d3b9:LJT4848400002950H0R4
64000/0xfa00/0x9:/dev/pt/pt2::USSO08016323
64000/0xfa00/0xa:/dev/pt/pt3::USSO08016323
Displaying current values of a settable attribute for all devices on the system, in a scriptable
format
A script, which needs current value of the max_q_depth tunable for all devices on the system, can
issue the following scsimgr command. Note that the device_file attribute is also required to be able
to associate devices and max_q_depth values.
# scsimgr -p get_attr all_lun -a device_file -a max_q_depth
/dev/rdisk/disk15:8
/dev/rdisk/disk16:8
/dev/rdisk/disk17:1
/dev/rdisk/disk18:8
/dev/rdisk/disk19:8
/dev/rdisk/disk20:16
/dev/rdisk/disk21:8
/dev/rdisk/disk22:8
/dev/rdisk/disk23:8
/dev/pt/pt2:1
/dev/pt/pt3:1
Notes: The following rules apply for the scriptable output of attributes:
• Attribute values are displayed exactly in the order specified in the command line.
• By default current values are returned. If the script wants default or saved values, the script
should specify the keyword ‘default’ and ‘saved’ respectively. Examples:
o scsimgr -p get_attr -D /dev/rdisk/disk0 -a max_q_depth -a path_fail_secs default
o scsimgr -p get_attr -D /dev/rdisk/disk0 -a max_q_depth -a path_fail_secs saved
• The field corresponding to an attribute will be empty if the value of the attribute is not
available. Examples: (1) Invalid attribute; (2) Invalid value requested (for instance saved or
default for a read-only attribute); (3) Value of the attribute not yet set (for instance querying
the value of the alias attribute prior to setting it).
• If the values of some of the attributes are not available, scsimgr exits with an error code >
0 to indicate that an error has occurred. The corresponding fields will be empty in the output.
Setting tunables
The HP-UX 11i v3 mass storage stack provides a rich set of attributes (tunables) that you can manage
using the scsimgr command. Each attribute has a name and the following values types:
• current value: the value currently used for operation.
• saved value: the value saved in a persistent manner. If it is set this value is used to initialize
the attribute at system boot.
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