3.文件备份
# xfsdump -f 备份存放位置 要备份文件路径
xfsdump -f /opt/dump_1 /dump_test
[root@donglian dump_test]# xfsdump -f /opt/dump_1 /dump_test
xfsdump: using file dump (drive_simple) strategy
xfsdump: version 3.1.7 (dump format 3.0) - type ^C for status and control
============================= dump label dialog ==============================
please enter label for this dump session (timeout in 300 sec)
-> dump_1 # 指定备份文件标签
session label entered: "dump_1"
--------------------------------- end dialog ---------------------------------
xfsdump: level 0 dump of donglian:/dump_test
xfsdump: dump date: Mon May 11 13:57:01 2020
xfsdump: session id: 76054e9c-fc40-4b38-b8d5-cb53584388ae
xfsdump: session label: "dump_1"
xfsdump: ino map phase 1: constructing initial dump list
xfsdump: ino map phase 2: skipping (no pruning necessary)
xfsdump: ino map phase 3: skipping (only one dump stream)
xfsdump: ino map construction complete
xfsdump: estimated dump size: 36032 bytes
============================= media label dialog =============================
please enter label for media in drive 0 (timeout in 300 sec)
-> dump_test #指定设备便签（硬盘挂载名）
media label entered: "dump_test"
--------------------------------- end dialog ---------------------------------
xfsdump: creating dump session media file 0 (media 0, file 0)
xfsdump: dumping ino maps and 11 entries processed
xfsdump: dumping directoriesree /dump_test/test/^C4 2020s offline) ]
xfsdump: dumping non-directory files
xfsdump: ending media filete: 0 seconds elapsed814-93b8-eb18f29b7bb7
xfsdump: media file size 33208 bytesedia file size> ]
xfsdump: dump size (non-dir files) : 5184 bytes excluded) ]
xfsdump: dump complete: 15 seconds elapsed ... ]
xfsdump: Dump Summary:st]# 1p) ]
xfsdump: stream 0 /opt/dump_1 OK (success)
xfsdump: Dump Status: SUCCESS
3.1 不交互备份
xfsdump -f /opt/dump_2 /dump_test -L dump_2 -M /dump_test
# -L 指定文件标签 -M指定设备标签
[root@donglian dump_test]# xfsdump -f /opt/dump_2 /dump_test -L dump_2 -M /dump_test
xfsdump: using file dump (drive_simple) strategy
xfsdump: version 3.1.7 (dump format 3.0) - type ^C for status and control
xfsdump: level 0 dump of donglian:/dump_test
xfsdump: dump date: Mon May 11 14:03:42 2020
xfsdump: session id: 3771ab8a-6efe-4414-8a62-ac47ec18365d
xfsdump: session label: "dump_2"
xfsdump: ino map phase 1: constructing initial dump list
xfsdump: ino map phase 2: skipping (no pruning necessary)
xfsdump: ino map phase 3: skipping (only one dump stream)
xfsdump: ino map construction complete
xfsdump: estimated dump size: 36032 bytes
xfsdump: creating dump session media file 0 (media 0, file 0)
xfsdump: dumping ino map
xfsdump: dumping directories
xfsdump: dumping non-directory files
xfsdump: ending media file
xfsdump: media file size 33208 bytes
xfsdump: dump size (non-dir files) : 5184 bytes
xfsdump: dump complete: 1 seconds elapsed
xfsdump: Dump Summary:
xfsdump: stream 0 /opt/dump_2 OK (success)
xfsdump: Dump Status: SUCCESS
[root@donglian dump_test]#
3.2恢复备份
xfsrestore -f /opt/dump_1 /dump_test
# xfsrestore -f 备份存放位置 要恢复备份文件路径
[root@donglian dump_test]# xfsrestore -f /opt/dump_1 /dump_test
xfsrestore: using file dump (drive_simple) strategy
xfsrestore: version 3.1.7 (dump format 3.0) - type ^C for status and control
xfsrestore: searching media for dump
xfsrestore: examining media file 0
xfsrestore: dump description:
xfsrestore: hostname: donglian
xfsrestore: mount point: /dump_test
xfsrestore: volume: /dev/sdb1
xfsrestore: session time: Mon May 11 13:57:01 2020
xfsrestore: level: 0
xfsrestore: session label: "dump_1"
xfsrestore: media label: "dump_test"
xfsrestore: file system id: 9b65ee97-f7fe-41f9-80fc-10ad38a0e999
xfsrestore: session id: 76054e9c-fc40-4b38-b8d5-cb53584388ae
xfsrestore: media id: b389bf7c-8ae3-4c81-84de-12650942a1aa
xfsrestore: using online session inventory
xfsrestore: searching media for directory dump
xfsrestore: reading directories
xfsrestore: 3 directories and 22 entries processed
xfsrestore: directory post-processing
xfsrestore: restoring non-directory files
xfsrestore: restore complete: 0 seconds elapsed
xfsrestore: Restore Summary:
xfsrestore: stream 0 /opt/dump_1 OK (success)
xfsrestore: Restore Status: SUCCESS
[root@donglian dump_test]#