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devswmgr - utility to manage the device switch database
/sbin/devswmgr [-option [ parameter ]]
Displays the following information about the device switch database:
The devswmgr command helps you manage the device switch table by displaying information about the devices drivers in the table
You can also use the command to release device switch table entries. Typically, you release the entries for a driver after you have unloaded the driver and do not plan to reload it later. Releasing the entries frees them for use by other device drivers.
The following example shows that a device switch table was loaded from
the primary device and that there are 70 entries in it:
% /sbin/devswmgr -display
Device switch information
device switch database read from primary file
device switch table has 70 entries
The following example shows the major numbers in the device switch table
that have been reserved for the driver named cam_disk:
% /sbin/devswmgr -getnum driver=cam_disk
Device switch reservation list
(*=entry in use)
driver name instance major
------------------------------- -------- -----
cam_disk 1 8*
The file that manages the device switch databases The primary device switch database file The backup device switch database file
Commands: scsimgr(8) delim off