五、恢复

假定我们需要恢复cp3上一些丢失的数据，首先用amandabackup帐号登录cp2机器，创建/etc/amanda/amanda-client.conf文件，内容如下：

#

# amanda.conf - sample Amanda client configuration file.

#

# This file normally goes in /etc/amanda/amanda-client.conf.

#

conf "FileBackup"# your config name

index_server "cp1.domain.com"# your amindexd server

tape_server "cp1.domain.com"# your amidxtaped server

#tapedev "tape:/dev/YOUR-TAPE-DEVICE-HERE"# your tape device

# if not set, Use configure or ask server.

# if set to empty string "", ask server

# amrecover will use the changer if set to the value

# of 'amrecover_changer' in the server amanda.conf.

# auth- authentication scheme to use between server and client.

# Valid values are "bsd", "bsdudp", "bsdtcp", "krb5", "local",

# "rsh" and "ssh".

# Default: [auth "bsdtcp"]

auth "bsdtcp"

#ssh_keys ""# your ssh keys file if you use ssh auth

然后使用root帐号运行amrecover命令来初始化data恢复过程

[root@cp3 ~]# amrecover

AMRECOVER Version 2.6.1p1. Contacting server on cp1.domain.com ...

220 cp1 AMANDA index server (2.6.1p1) ready.

Setting restore date to today (2009-04-13)

200 Working date set to 2009-04-13.

200 Config set to FileBackup.

200 Dump host set to cp3.domain.com.

Use the setdisk command to choose dump disk to recover

amrecover>

接下的一些命令演示如何将特定的一些数据恢复到指定的目录(这里指定/tmp)

amrecover> listdisk

200- List of disk for host cp3.domain.com

201- /opt/www/sites

200 List of disk for host cp3.domain.com

amrecover> setdisk /opt/www/sites

200 Disk set to /opt/www/sites.

amrecover> ls

2009-04-13-17-49-11 newltf/

2009-04-13-17-49-11 lawburn/

2009-04-13-17-49-11 hnnoritz/

2009-04-13-17-49-11 fireyang/

2009-04-13-17-49-11 admin/

2009-04-13-17-49-11 .htpasswd

2009-04-13-17-49-11 .

amrecover> cd admin

/opt/www/sites/admin

amrecover> ls

2009-04-13-17-49-11 var

2009-04-13-17-49-11 usr

2009-04-13-17-49-11 tmp

2009-04-13-17-49-11 sbin

2009-04-13-17-49-11 lib

2009-04-13-17-49-11 etc

2009-04-13-17-49-11 dev

2009-04-13-17-49-11 bin

2009-04-13-17-49-11 domain.com/

2009-04-13-17-49-11 .

amrecover> cd domain.com

/opt/www/sites/admin/domain.com

amrecover> ls

2009-04-13-17-49-11 var

2009-04-13-17-49-11 usr

2009-04-13-17-49-11 tmp

2009-04-13-17-49-11 subdomains/

2009-04-13-17-49-11 sbin

2009-04-13-17-49-11 mysql/

2009-04-13-17-49-11 lib

2009-04-13-17-49-11 etc

2009-04-13-17-49-11 dev

2009-04-13-17-49-11 bin

2009-04-13-17-49-11 Mailboxs/

2009-04-13-17-49-11 .

amrecover> add subdomains/

Added dir /admin/domain.com/subdomains/ at date 2009-04-13-17-49-11

amrecover> lcd /tmp

amrecover> extract

Extracting files using tape drive changer on host cp1.domain.com.

The following tapes are needed: FileBackup-06

Restoring files into directory /tmp

Continue [?/Y/n]? y

Extracting files using tape drive changer on host cp1.domain.com.

Load tape FileBackup-06 now

Continue [?/Y/n/s/d]? y

./admin/domain.com/subdomains/

./admin/domain.com/subdomains/404/

./admin/domain.com/subdomains/404/bin/

./admin/domain.com/subdomains/404/cgi-bin/

./admin/domain.com/subdomains/404/dev/

./admin/domain.com/subdomains/404/etc/

./admin/domain.com/subdomains/404/html/

./admin/domain.com/subdomains/404/lib/

./admin/domain.com/subdomains/404/libexec/

./admin/domain.com/subdomains/404/logs/

./admin/domain.com/subdomains/404/logs/2009/

./admin/domain.com/subdomains/404/logs/2009/04/

./admin/domain.com/subdomains/404/sbin/

./admin/domain.com/subdomains/404/tmp/

......

我们看看/tmp下面是不是已经有了我们刚才恢复的数据：

[root@cp3 ~]# tree /tmp/admin/domain.com/subdomains/ |more

/tmp/admin/domain.com/subdomains/

|-- 404

| |-- bin

| | |-- bash

| | |-- cat

| | |-- echo

| | |-- false

| | |-- gunzip

| | |-- ls

| | |-- mkdir

| | |-- mv

| | |-- pwd

| | |-- rm

| | |-- scp

| | |-- sftp

| | |-- sh

| | |-- tar

| | |-- unzip

| | `-- zip

| |-- cgi-bin

| |-- dev

| | |-- null

| | |-- random

| | `-- urandom

......

Ok,到此为止，Amanda备份配置基本完成，当然我们很多的配置都是基于缺省定义，比如槽位数，备份周期等，更多详细的定义，可以参考/usr/lib/amanda/example/amanda.conf文件。