Backup/Restore
9.1 Backup °³¿ä
- O/S Configuration º¯°æ ½Ã ¹Ýµå½Ã O/S ¹é¾÷ ¼öÇà
- Root file system°ú data file system À» º°µµÀÇ tapeÀ¸·Î ¹é¾÷
- °¡´ÉÇÑ file system º°·Î ¹é¾÷ ¼öÇà
9.2 tar
n ¹é¾÷
¢¹ O/S µ¥ÀÌÅÍ ¹é¾÷
¨ç DB & Application shutdown ½ÃÅ´
¨è Single-user mode·Î Àüȯ
# shutdown 0
¨é O/S °ü·Ã directory¸¸ mount½ÃÅ´, ¡°bdf¡± ·Î È®ÀÎ
¨ê # cd / (root directory·Î À̵¿)
¨ë tapeÀ» µå¶óÀ̺꿡 ³Ö´Â´Ù.
¨ì # tar cvf /dev/rmt/0m ./
¢¹ ÀÏ¹Ý µ¥ÀÌÅÍ ¹é¾÷
ÀϹÝÀûÀ¸·Î ¼ö½Ê ~ ¼ö¹é MB Á¤µµÀÇ µ¥ÀÌÅ͸¦ ¹é¾÷Çϴµ¥ ÀûÇÕ
[¿¹Á¦] # cd /data ; # tar cvf /dev/rmt/0m .
©£ data¸¦ »ó´ë path·Î ¹é¾÷ ¹ÞÀ½ (# tar cv . °ú °°À½)
[¿¹Á¦] # tar cvf /dev/rmt/0m /data
©£ data¸¦ Àý´ë path·Î ¹é¾÷ ¹ÞÀ½
[¿¹Á¦] # tar rvf /dev/rmt/0m .
©£ ±âÁ¸ tape¿¡ µ¡ºÙ¿© ¹é¾÷ ¹ÞÀ½
[¿¹Á¦] # tar tvf /dev/rmt/0m
©£ ¹é¾÷ ¹ÞÀº ³»¿ëÀ» tape¿¡¼ È®ÀÎÇÔ
n º¹±¸
¢¹ Àý´ë path·Î ¹é¾÷ ¹Þ¾ÒÀ» ½Ã
# tar xvf /dev/rmt/0m
©£ data´Â ¹é¾÷ ¹ÞÀº Àý´ë path·Î º¹±¸µÈ´Ù.
¢¹ »ó´ë path·Î ¹é¾÷ ¹Þ¾ÒÀ» ½Ã
# cd /data ; # tar xvf /dev/rmt/0m
©£ º¹±¸ÇÏ°íÀÚ ÇÏ´Â directory·Î À̵¿ ÈÄ º¹±¸
9.3 cpio
n ¹é¾÷
- copy input to output
- ´ë¿ë·®ÀÇ data¸¦ ¡®disk´ë disk¡¯ ȤÀº ¡®disk´ë tape¡¯ µî ÀÚÀ¯ÀÚÀç·Î »ç¿ë
°¡´É
[¿¹Á¦] #cd /data ; # find . –print –depth -xdev|cpio –pxdmluv /new-data
©£ ¡®data¡¯ directory¿¡ ÀÖ´Â ¸ðµç ³»¿ëÀ» ¡®/new-data¡¯·Î ¹é¾÷ ¹ÞÀ½
[¿¹Á¦] #cd /data ; # find . –print|cpio –ocvBhx > /dev/rmt/0m
©£ ¡¯data¡¯ directory¿¡ ÀÖ´Â ¸ðµç ³»¿ëÀ» tapeÀ¸·Î ¹é¾÷ ¹ÞÀ½
n º¹±¸
[¿¹Á¦] # cd /data ; # cpio -icdBumvhx < /dev/rmt/0m
©£ º¹±¸ ÇÒ directory·Î À̵¿ ÈÄ º¹±¸ÇÑ´Ù.
9.4 fbackup
n ¹é¾÷
- HP system¿¡¼¸¸ µ¿ÀÛÇϸç SAMÀ¸·Îµµ °¡´É
- tarº¸´Ù ¼Óµµ°¡ ºü¸£´Ù.
- Backup µÈ ÆÄÀϵéÀÇ list¸¦ º¼ ¼ö ÀÖ´Ù.
- ¹é¾÷ ¹æ¹ý
- SAM ÀÌ¿ë
# sam
©£ Backup and Recovery ¼±ÅÃ
©£ Interactive Backup and Recovery ¼±ÅÃ
©£ ¹é¾÷ ¹ÞÀ» Device ÀåÄ¡¸¦ ¸¶Å©(space bar ÀÌ¿ë) ÇÑ ÈÄ
[Action] ¸Þ´º¸¦ ¼±ÅÃ
©£ Back up files Interactively ¡¦ ¼±ÅÃ
©£ Specify Tape Device Option ¡¦ ¼±ÅÃ à ¿øÇÏ´Â Device option
¼±ÅÃ
©£ Select Backup Scopy ¼±ÅÃ à ¿øÇÏ´Â ÆÄÀÏ ½Ã½ºÅÛÀ» add ÇÑ
´Ù.
©£ OK ¸¦ ´©¸£¸é ¹é¾÷ÀÌ ÁøÇàµÊ
- ¸í·É¾î ÀÌ¿ë
[¿¹Á¦] # fbackup –f device_file –i path –e path
©£ f : Ãâ·ÂÀ» º¸³¾ ÀåÄ¡ÆÄÀÏ, ÀϹÝÀûÀ¸·Î tape
©£ i : ¹é¾÷ ½Ã Æ÷ÇÔ½Ãų directory path
©£ e : ¹é¾÷ ½Ã Á¦¿Ü½Ãų directory path
[¿¹Á¦] # fbackup –f device file –g graph_file
©£ g : ¹é¾÷¿¡¼ Æ÷ÇÔ ¶Ç´Â Á¦¿Ü½Ãų ÆÄÀÏ°ú µð·ºÅ丮ÀÇ ¸ñ·ÏÀÌ
µé¾î ÀÖ´Â ÆÄÀÏ
©£ ¡°-i¡±,¡±-e¡± option ´ë½Å »ç¿ë. »ó´ë path,Àý´ë path ¸ðµÎ °¡´É
[¿¹Á¦] # fbackup –f /dev/rmt/0m –i / -e /home
©£ tape ÀåÄ¡·Î ¡°/home¡± directory¸¦ Á¦¿Ü ÇÑ ¸ðµç ÆÄÀÏ ¹× ÇöÀç
¸¶¿îÆ® µÇ¾î ÀÖ´Â ¸ðµç ÆÄÀϽýºÅÛÀ» ¹é¾÷ÇÑ´Ù.
n º¹±¸
- SAM ÀÌ¿ë
# sam
©£ Backup and Recovery ¼±ÅÃ
©£ Interactive Backup and Recovery ¼±ÅÃ
©£ RestoreÇÒ Device ÀåÄ¡¸¦ ¸¶Å©(space bar ÀÌ¿ë) ÇÑ ÈÄ [Action]
¸Þ´º¸¦ ¼±ÅÃ
©£ Restore Files or Directories ¼±ÅÃ
©£ ¸Þ´º³»¿ë ¼±ÅÃÇÑ ÈÄ OK ´©¸£¸é ½ÇÇà
- ¸í·É¾î ÀÌ¿ë
[¿¹Á¦] # frecover –x –f /dev/rmt/0m –i {path} –e {path}
©£ -i path : º¹±¸ ÇÒ directory
©£ -e path : º¹±¸ÇÏÁö ¾ÊÀ» directory
[¿¹Á¦] # frecover –r –f /dev/rmt/0m
©£ tapeÀ¸·ÎºÎÅÍ ¸ðµÎ º¹±¸
9.5 dd
- Á÷Á¢ÀûÀÎ Image Copy ¼öÇà
- Bit ´ÜÀ§·Î º¹»çÇϱ⠶§¹®¿¡ ¼±ÅÃÀû º¹±¸ ºÒ°¡´É
- DiskÀÇ º¹»çº»À» ¸¸µé ¶§ À¯¿ë
- Redundant O/S¿ëÀ¸·Î È°¿ë °¡´É
[¿¹Á¦] #dd if=<source> of=<destination> (¹æÇâ Áß¿äÇÔ!)
#dd if=/dev/rdsk/c0t6d0 of=/dev/rdsk/c0t5d0 bs=1024k
#dd if=/dev/rdsk/c0t6d0 of=/dev/rmt/0m bs=12k
9.6 Make_recovery
n °³¿ä
- Make_recovery´Â ignite-uxÀÇ ÀϺΠ±â´ÉÀÌ´Ù.
- Make_recovery´Â ¡°system recovery boot tape¡± À» »ý¼ºÇϴµ¥ »ç¿ëµÈ´Ù.
Áï, ½Ã½ºÅÛÀÇ Root disk failure ½Ã O/S¸¦ À缳ġ ÇÏÁö ¾Ê°í ¹Ì¸® »ý¼ºÇÑ
recovery tapeÀ» ÀÌ¿ëÇÏ¿© ½Ã½ºÅÛÀ» ºÎÆÃÇÏ¿© O/S µ¥ÀÌÅ͸¦ ½Å¼ÓÇÏ°Ô
restore ÇÒ ¼ö ÀÖ´Ù.
- Recovery tape »ý¼º ½Ã /var ¿¡ 32MB °¡ ÇÊ¿äÇÏ´Ù.
- Boot image¸¦ »ý¼ºÇϱâ À§ÇØ ÇÊ¿äÇÑ °ø°£À¸·Î make_recovery ´Â /var¿¡
boot-image¸¦ »ý¼º ÇÑ ÈÄ ¡°dd¡± ¸í·É¾î·Î /dev/rmt/0mn ¿¡ º¹»çÇÑ´Ù.
- Boot image¸¦ Á¦¿ÜÇÑ ³ª¸ÓÁö fileµéÀº ¡°pax¡± ¸í·É¾î·Î ¹é¾÷µÈ´Ù.
- Online »óÅ¿¡¼µµ ¹é¾÷ °¡´ÉÇÏ´Ù.
- ¼·Î ´Ù¸¥ ½Ã½ºÅÛÀÇ O/S º¹Á¦ ½Ã¿¡µµ »ç¿ë °¡´ÉÇÏ´Ù.
- º°µµ·Î ignite-ux s/w ¸¦ ¼³Ä¡ ÇØ¾ß ÇÑ´Ù.
©£ fileset Àº /opt/ignite ¿¡ ¼³Ä¡µÊ.
n ¹é¾÷
¢¹ O/S ±âº» ¹é¾÷
: ±âº»ÀûÀ¸·Î O/S critical directory ¸¸ ¹é¾÷ ¹Þ´Â´Ù.
- /stand, /sbin, /dev, /etc : ¸ðµÎ Æ÷ÇÔ
- /usr, /opt, /var : ÀϺΠÆ÷ÇÔ
[¿¹Á¦] # make_recovery –d /dev/rmt/0mn (-d ÀÌÇÏ »ý·« °¡´É)
¢¹ O/S full ¹é¾÷
: vg00 ¿¡ Æ÷ÇÔµÈ ¸ðµç data¸¦ ¹é¾÷ ¹Þ´Â´Ù.
[¿¹Á¦] # make_recovery –A –d /dev/rmt/0mn
n º¹±¸
¢¹ O/S Àüü º¹±¸
¨ç SystemÀ» recovery tapeÀ¸·Î ºÎÆÃÇÑ´Ù.
¨è ºÎÆà ÈÄ batch mode ¹× interactive mode·Î º¹±¸ ÇÒ ¼ö ÀÖ´Ù.
- Batch mode
©£ ¹é¾÷ ¹ÞÀº disk ¿¡ ¹é¾÷ ¹ÞÀº »óÅ ±×´ë·Î º¹±¸ ½Ã »ç¿ëÇÑ´Ù. Áï, tapeÀ¸·Î ºÎÆà ÈÄ ignite-ux ȸé load ½Ã interruptÀ» °ÉÁö ¾ÊÀ¸¸é ÀÚµ¿À¸·Î batch mode·Î µé¾î°¡ recovery ÀÛ¾÷ÀÌ ¼öÇàµÈ´Ù.
- Interactive mode
©£ tape À¸·Î ºÎÆà ÈÄ ignite-ux ȸé load ½Ã ¾Æ¹« key³ª ´©¸£¸é interactive mode ·Î µé¾î°¥ ¼ö ÀÖ´Ù.
©£ Interactive mode¿¡¼´Â restore ÇÒ disk ÁöÁ¤, O/S file system layout º¯°æ µî ´Ù¾çÇÑ flexibility¸¦ Á¦°øÇÑ´Ù.
¢¹ ÀϺΠÆÄÀÏ º¹±¸
¨ç º¹±¸ tape¿¡¼ boot image¸¦ skipÇÏ°í file ÀÌ ¹é¾÷µÈ °÷À¸·Î À̵¿
# mt –t /dev/rmt/0mn fsf 1
¨è ¿øÇÏ´Â ÆÄÀÏ º¹±¸
# tar xvf /dev/rmt/0m etc/passwd opt/
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