Rb8- Backup, Restores, And Availability

Front 1

with the -u flag, the backup command will do an incremental backup of incremental data according to the level number. what is the range of level numbers?

Back 1

0 - 9

Front 2

When you need to make a mksysb backup of a system, and you want to exclude
some data file systems from the system, how do you accomplish this?

Back 2

you need to edit the /etc/exclude.rootvg
file.

Front 3

what is the tctl command?

Back 3

The tctl command sends subcommands to a streaming tape device, like
/dev/rmt0. This command can manipulate tapes easily for data restoration.

Front 4

mksysb

Back 4

The mksysb command creates an installable image of the root volume
group either in a file or onto a bootable tape.

Front 5

how would you make a duplicate copy of a diskette?

Back 5

To make a duplicate copy of a diskette, you first use the dd command to copy the
contents of the diskette into a temporary file. Once the temporary file has been
created, use the dd command to copy the temporary file onto the /dev/fd0 device,
thus, creating a duplicate of your diskette.

Front 6

restvg

Back 6

Use the restvg command to restore a volume group.

Front 7

what is hacmp?

Back 7

High Availability Cluster Multi-Processing (HACMP).
HACMP for AIX is an application solution that can link up to eight RS/6000
servers or SP nodes into highly available clusters.

Front 8

pax

Back 8

The pax command should be the archive of choice for system dumps
and images greater than 2 GB in size.

Front 9

what 3 images precede teh backup files in a mksysb?

Back 9

the BOS boot image, mkinsttape image, and dummy
TOC

Front 10

can maksysb be ran against a user created volume group (non rootvg)?

Back 10

no, use other utilities such as savevg, tar, cpio, backup

Front 11

when creating a mksysb, what does the shrink variable do?

Back 11

When set to YES, causes the system to create the smallest file
systems required to contain all the data in the file system.

Front 12

tar

Back 12

The tar command manipulates archives by writing files to, or
retrieving files from, an archive storage medium.

Front 13

A typical problem with moving tapes between systems is an incorrect block size. what command can you use to determine the block size?

Back 13

tcopy /dev/rmt0

Front 14

tctl

Back 14

Use the tctl command to control a tape device.

Front 15

what command is used to change the block size prior to reading in the tape?

Back 15

# chdev -l rmt0 -a block_size=512

Front 16

dd

Back 16

The dd command reads the InFile parameter or standard input, does
the specified conversions, then copies the converted data to the
OutFile parameter or standard output. The input and output block
size can be specified to take advantage of raw physical I/O.

Front 17

what command is used to make copies of a magnetic tape?

Back 17

tcopy

Front 18

backup

Back 18

The backup command creates copies of your files on a backup
medium, such as a magnetic tape or diskette. The copies are in one
of the two backup formats: Either specific files backed up (using the -i
flag), or the entire file system backed up by i-node.

Front 19

cpio

Back 19

The cpio command copies files into and out of archive storage and
directories.

Front 20

restore

Back 20

The restore command reads archives created by the backup
command and extracts the files stored on them. These archives can
be in either file-name or file-system format.

Front 21

savevg

Back 21

The savevg command saves non-root volume groups.

Front 22

describe savevg.

Back 22

The savevg command finds and backs up all files belonging to a specified volume
group.

Front 23

what command is interchangeable with -print during a find while doing a backup?

Back 23

-depth

Front 24

can a volume group be varied off to run savevg?

Back 24

no

Front 25

what is the mksysb command used for?

Back 25

to create a bootable image of all mounted file systems on teh rootvg volume group.