3.3 References

3.4 Quiz

Figure 14 is an exhibit pertaining to question 1.


init:2:initdefault:
brc::sysinit:/sbin/rc.boot 3 >/dev/console 2>&1 # Phase 3 of system boot
powerfail::powerfail:/etc/rc.powerfail 2>&1 | alog -tboot > /dev/console # Power Failure Detection
rc:2:wait:/etc/rc 2>&1 | alog -tboot > /dev/console # Multi-User checks
fbcheck:2:wait:/usr/sbin/fbcheck 2>&1 | alog -tboot > /dev/console # run /etc/firstboot
srcmstr:2:respawn:/usr/sbin/srcmstr # System Resource Controller
rctcpip:2:wait:/etc/rc,tcpip > /dev/console 2>&1 # Start TCP/IP daemons
rcnfs:2:wait:/etc/rc.nfs > /dev/console 2>&1 # Start NFS Daemons
cron:2:respawn:/usr/sbin/cron
piobe:2:wait:/usr/lib/lpd/pio/etc/pioinit >/dev/null 2>&1  # pb cleanup
qdaemon:2:wait:/usr/bin/startsrc -sqdaemon
writesrv:2:wait:/usr/bin/startsrc -swritesrv
uprintfd:2:respawn:/usr/sbin/uprintfd
logsymp:2:once:/usr/lib/ras/logsymptom # for system dumps
pmd:2:wait:/usr/bin/pmd > /dev/console 2>&1 # Start PM daemon
diagd:2:once:/usr/lpp/diagnostics/bin/diagd >/dev/console 2>&1
dt:2:wait:/etc/rc.dt
cons:0123456789:respawn:/usr/sbin/getty /dev/console
cfgmceh:2:once:/usr/lib/methods/cfgmceh >/dev/null 2>&1 # Configure Machine Check Error Handler
infod:2:once:startsrc -s infod
browser:2:respawn:/usr/lpp/xlC/browser/pdnsd
Figure 14: Exhibit for Question 1

  1. After booting, NFS is not available. Based on the exhibit, what can be concluded?
    1. /etc/rc.nfs is corrupted.

    2. The /var filesystem is corrupted.

    3. The TCP/IP initialization is incorrect.

    4. The start NFS call should read "rcnfs:1:wait:/etc/rc.nfs > /dev/console 2>&1.

  2. During bootup, the system administrator notices that the system is hung at LED 553. This most commonly indicates:
    1. A corrupted /etc/inittab.

    2. The system could not complete a network boot.

    3. The system could not vary on the root volume group.

    4. The configuration manager could not locate a valid boot device.

  3. After a power failure, the system attempts to reboot but hangs on 557. This indicates file system corruption. Which of the following actions should be taken to recover?
    1. Restore /etc/filesystems from mksysb.

    2. Execute chfs -a size=+1 against all filesystems in rootvg.

    3. From a maintenance shell, run lppchk -v against all filesets installed.

    4. From a maintenance shell, run fsck -y against all filesystems in rootvg.

3.4.1 Answers

  1. C

  2. A

  3. D

3.5 Exercises