scsimgr.1m (2010 09)

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scsimgr [-f] ddr_add -N attr_scope

scsimgr [-f] ddr_del -N attr_scope

ddr_list Lists driver settable attribute scopes registered on the system.

Usage:

scsimgr ddr_list

Note: The attribute scope speciﬁes the set of devices affected by attribute values set at

this level.

To display the list of attributes that can be set at a given scope and their values, run the

command:

scsimgr get_attr -N attr_scope

For instance, if you add the scope corresponding to all disk devices from HP:

’/escsi/esdisk/0x0/HP ’

, to list attributes which can be set at this level

and their values, run the following command:

scsimgr get_attr -N ’/escsi/esdisk/HP ’ settable

For description of attributes, refer to the manpage of the

scsimgr plug-in for the

corresponding driver.

ddr_name Generates a settable attribute scope covering a SCSI object. The user can then register

the scope generated using the command option

ddr_add.

Usage:

scsimgr ddr_name identiﬁer pdt | vid | pid | rev

where:

identifier Identiﬁes a LUN.

pdt Includes elements down to the peripheral device identiﬁer.

vid Includes elements down to the vendor identiﬁer.

pid Includes elements down to the product identiﬁer.

rev Includes elements down to the ﬁrmware revision number.

Note: the user can manually build the settable attribute scope, but this is prone to

errors. The

ddr_name command option automatically generates the settable attribute

scope from the inquiry data of the LUN, as well as the driver to which it is bound. The

user can then "cut and paste" the scope to register it with the system using the

ddr_add

command option.

For example, to register the settable attribute scope corresponding to all disk devices

bound to the same driver as disk20, and from the same vendor as disk20, run the follow-

ing command:

scsimgr ddr_name -D /dev/rdisk/disk20 vid

If the command gives the output:

SETTABLE ATTRIBUTE SCOPE

"/escsi/esdisk/0x0/COMPAQ "

the user can then register the scope generated as follows:

scsimgr ddr_add -N "/escsi/esdisk/0x0/COMPAQ "

disable/enable

Disables/enables a SCSI object. Upon disable, the object cannot be used to transfer I/Os.

If the disabled object is a LUN, all pending I/Os are aborted for that LUN. Currently

supported SCSI objects are LUNs and LUN paths.

The SCSI object can be disabled either administratively by invoking the disable com-

mand, or by the SCSI stack upon detection of certain types of critical errors. When this

condition has occurred, HP-UX logs a message in

syslog which informs the user that a

SCSI object has been disabled. In the case of the SCSI stack disabling the SCSI object,

the system administrator, after resolving the problem on the device, can invoke the

HP-UX 11i Version 3: September 2010 − 7 − Hewlett-Packard Company 7