Copyright IBM Corporation 2008,Unit 7 Devices, Copyright IBM Corporation 2008,Unit objectives,After completing this unit, you should be able to: Describe the difference between logical and physical devices Describe the purpose of the ODM predefined and customized databases Describe the different states of a device Describe the format of device location codes Use SMIT to add/show/change/delete devices, Copyright IBM Corporation 2008,Device terminology,Physical Devices Ports Device Drivers Logical Devices /dev Directory, Copyright IBM Corporation 2008,Listing of /dev directory,# ls -l /dev brw-rw-rw 1 root system 20,0 Oct 29 02:25 fd0 brw-rw-rw 1 root system 20,64 Oct 29 02:26 fd1 crw-rw-rw 1 root system 20,0 Oct 29 02:25 rfd0 crw-rw-rw 1 root system 20,64 Oct 29 02:26 rfd1 : : crw-r-r- 1 root system 22,0 Oct 29 02:25 rmt0 crw-r-r- 1 root system 22,1 Oct 29 02:25 rmt0.1 : : brw- 1 root system 14,1 Oct 29 02:44 hdisk0 brw- 1 root system 14,2 Nov 1 05:31 hdisk1 crw- 2 root system 14,1 Oct 29 02:44 rhdisk0 crw- 1 root system 14,2 Nov 1 05:31 rhdisk1,fd0,rmt0,rmt1, Copyright IBM Corporation 2008,Device configuration database,Predefined Configuration Database Class Type Subclass Description memory totmem sys Memory tape 4mm4gb scsi 4.0 GB 4mm Tape Drive disk osdisk scsi Other SCSI Disk Drive adapter 23100020 pci IBM 10/100Mbps Ethernet PCI Adapter (23100020) adapter 14101800 pci IBM PCI Tokenring Adapter (14101800) adapter chrp_ecp isa_sio CHRP IEEE1284 (ECP) Parallel Port Adapter adapter keyboard kma_chrp Keyboard Adapter Customized Configuration Database Name Status Location Description sa0 Available 01-S1 Standard I/O Serial Port sioka0 Available 01-K1-00 Keyboard Adapter rmt0 Available 10-80-00-0.0 SCSI 4mm Tape Drive hdisk0 Available 10-80-00-4,0 16 Bit SCSI Disk Drive hdisk1 Available 10-80-00-5,0 16 Bit SCSI Disk Drive mem0 Available Memory ent0 Available 10-60 IBM 10/100 Mbps Ethernet PC Adapter (23100020) lft lft node Low Function Terminal Subsystem diskette fd siofd Diskette Drive printer ibm4019 parallel IBM 4019 LaserPrinter, Copyright IBM Corporation 2008,List all supported devices,PdDv (Predefined Devices) # lsdev -P -H class type subclass description memory totmem sys Memory tape 4mm4gb scsi 4.0 GB 4mm Tape Drive disk osdisk scsi Other SCSI Disk Drive adapter 22100020 pci IBM PCI Ethernet Adapter (22100020) adapter 14101800 pci IBM PCI Tokenring Adapter (14101800) adapter ppa isa_sio Standard I/O Parallel Port Adapter adapter isa_keyboard isa_sio Keyboard Adapter . . . . # lsdev -Pc tape tape 1200mb-c scsi 1.2 GB 1/4-Inch Tape Drive tape 150mb scsi 150 MB 1/4-Inch Tape Drive tape 3490e scsi 3490E Autoloading Tape Drive tape 4mm2gb scsi 2.0 GB 4mm Tape Drive . . . ., Copyright IBM Corporation 2008,List all defined devices,CuDv (Customized Devices) # lsdev -C -H name status location description sys0 Available System Object pci0 Available PCI Bus isa0 Available 10-58 ISA Bus sa0 Available 01-S1 Standard I/O Serial Port scsi0 Available 10-80 Wide/Fast-20 SCSI I/O Controller cd0 Available 10-80-00-3,0 SCSI Multimedia CD-ROM Drive rmt0 Defined 10-80-00-6,0 4.0 GB 4mm Tape Drive hdisk0 Available 10-80-00-4,0 16 Bit SCSI Disk Drive hdisk1 Available 10-80-00-5,0 16 Bit SCSI Disk Drive mem0 Available Memory ent0 Available 10-60 IBM 10/100 Mbps Ethernet PCI tok0 Available 10-90 IBM PCI Tokenring Adapter # lsattr -EH -l sys0 attribute value description user_settable keylock normal State of system keylock at boot time False realmem 131072 Amount of usable physical memory Kbytes False iostat true Continuously maintain DISK I/O history True # lsattr -E -l sys0 -a realmem realmem 131072 Amount of usable physical memory in Kbytes False, Copyright IBM Corporation 2008,Device states,Predefined Database,Undefined,Supported,Device,Customized Database,Defined,Not Usable,Available,Ready for,Use,rmdev -l,mkdev -l,or,cfgmgr,rmdev -dl,rmdev -dl, Copyright IBM Corporation 2008,Self-configuring devices, Copyright IBM Corporation 2008,SMIT Devices menu,# smit devices,Devices Move cursor to desired item and press Enter. Install/Configure Devices Added After IPL Printer/Plotter TTY Asynchronous Adapters PTY Console MPIO Management Fixed Disk Disk Array CD ROM Drive Read/Write Optical Drive Diskette Drive Tape Drive Communications Graphic Displays Graphic Input Devices Low Function Terminal (LFT) SCSI Initiator Device SCSI Adapter FC Adapter IDE Adapter iSCSI Asynchronous I/O Multimedia List Devices Configure/Unconfigure Devices Install Additional Device Software PCI Hot Plug Manager SSA Disks SSA RAID Arrays, Copyright IBM Corporation 2008,Device addressing,Location codes are used for device addressing The location code for a device is a path from the adapter in the CPU drawer or system unit, through the signal cables and the asynchronous distribution box (if there is one) to the device Location cod