AIX admin course 1
Terms
undefined, object
copy deck
- how do you check the block size on a tape?
- use the tctl command with the -f flag the tape name and the status subcommand. ex: tctl -f /dev/rmt0 status
- what does the errlogger command do?
- allows the admin to record messages...
- what is the bosboot command used for? give an example of the command.
- to create a boot image. bosboot -ad /dev/rmt0.1
- what does smit stand for?
- system management interface tool
- when a system boots, what is the 1st process that is ran?
- init
- what are the 3 phases of the AIX boot process?
-
1. Hardware initialization.
2. Base Device Configuration.
3. System Boot - what does a flashing 888 code on the lcd mean?
- serious hardware problem
- what does the /usr/sbin/shutdown script do?
- it runs the killall command to terminate all processes. it then runs the sync command to clear memory, unmounts the file systems, and finally invokes the halt command.
- what command would you use to rewind a tape?
- tctl -f /dev/rmt0 rewind
- what are the common shutdown flags and what do they do?
-
-r reboot
-F quick shutdown with no warning to users.
-m brings the system to maintenance or single user mode.
+{Time} number of minutes to shutdown in
Message broadcast message - what does command errpt get you?
- the error log... usually hardware or software... sometimes informational
- when you shutdown an AIX system, which script is ran?
- /usr/sbin/shutdown
- what is ODM
- Object Data Manager
- list the mksysb command options.
-
-X Expands the /tmp file if needed
-i Creates the /image.data file
-m Creates the /image.data file and the physical partition maps
-e Excludes the files and directories
-v Lists files as they are backed up
-p Ensures that files are not packed as they are backed up
-b Shows how many 512-byte blocks to write in a single ouptu operation - what is the command to attain the attributes of a file?
- aclget
- which group is the default group for all users created in the system?
- staff
- what command is used to edit ODM files?
- odme
- when AIX is installed, where are the details of the BOS installation held?
- in the bosinst.data file. this is located in /var/adm/ras directory
- what command can you use to rewind a tape to the beginning?
- tctl -f {device} rewind
- what does the run level Q or q mean?
- tells the init command to re-examine the /etc/innitab file.
- what is the typical command to change the block size of a tape?
- chdev -l rmt0 -a block_size=###
- how can you create a backup from the command prompt?
- mksysb command
- what is an LPP?
- licensed program product. an lpp is a complete software product collection including all packages and filesets required. the BOS is an example of an lpp
- what are the minimum hardware requirements?
- terminal must be attached. system unit must be unlocked with the system key. all users must be logged off a multi user system. 32mb of ram, 380mb HD
- what is the ODM for?
- it is designed to maintain system and device configurations and vital product data. it is a binary database used by aix for configuration information, which is then used by the dynamic kernel.
- what is the lsuser command used for?
- list the attributes of all | a user
- what is held in the /etc/security/roles file?
- a list of valid roles
- how do you check how much space is available in the root volume group?
- lsvg rootvg command
- how is the /etc/security/roles file manipulated?
-
with the commands:
chrole
lsrole
mkrole
rmrole - what is a fileset?
- the smallest individually installable unit. it is a collection of files that provide a specific function.
- what is a package?
- contains a group of filesets with a common function.
- what is a command you could use to list the attributes of a device?
- lsattr -E -l {DEVICE}
- which command sets the control information of a file?
- aclput
- what is the instfix command used for?
-
allows you to install a fix or a set of fixes withou knowing any info other than the APAR number given to you by the support center
- what are the standard fileset suffixes?
- .adt, .com, .compat, .data, .dev, .diag, .fnt, .info, .help, .loc, .mp, .psg, .rte, .smit
-
what is the
tctl -f /dev/rmt0.1 fsf command used for? - this command brings the tape to the end of the first image
- aix filesets follow a standard naming convention. give an example.
-
lpp * package * fileset * suffix
bos.terminfo.print.data - each software component is divided into three parts, what are they and why?
- root, usr, and share. this is done to support code serving and diskless workstations.
- what is a bundle?
- a bundle is a collection of packages and filsets suited for a particular environment.
- describe the backup levels
-
level 0 is a full.
level one is an incremental that is a backup of all files that have changed since 0, level 2 since one and so on.