IBM AIX Devices

.............../ Updation in Progress
 
Devices management.  

ODM keeps track of  everything on the system, as
for devices we have two types of  categorization

1) Predifined Database
2) Customized Database



1) Predefined database :  "Support devices", drivers are already installed

#lsdev -P -H          (P for predefined devices, H for heading)
Gives us list

Listing particular class

#lsdev -Pc tape    (P for predefined devices, c for class)
#lsdev -Pc disk

#lsdev -Pc tape    --To lookup the predefined db for support for tape device


2) Customized database :  "Customized devices as per requirement"

#lsdev -C -H

Status is important.
Available means ready to use.
Defined means only driver available



Device Attributes


All the devices have what is called as attributes.

Now to list the attributes of a devices
#lsattr -EH -l mem0    (E for effective attr,l logical device

keylock
realmem
iostat

Check for User settable columns, where it says whether it could be
modified or not


Every devices has a logical device located in /dev directory
ls -l /dev // To see the devices attached to your system




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