X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=man%2Famrestore.8;h=545eba1963b9cae0b0d817851802e6ade24aa838;hb=b6ea83cedbf3e034fa91d66a7f180f788f34f907;hp=6a92015353ca0c28517364f189b5e1250a2e5dd4;hpb=d3b2175e084f88c8736ad7073eacbf4670147aec;p=debian%2Famanda diff --git a/man/amrestore.8 b/man/amrestore.8 index 6a92015..545eba1 100644 --- a/man/amrestore.8 +++ b/man/amrestore.8 @@ -1,20 +1,28 @@ +'\" t .\" Title: amrestore -.\" Author: -.\" Generator: DocBook XSL Stylesheets v1.72.0 -.\" Date: 06/06/2007 -.\" Manual: -.\" Source: +.\" Author: James da Silva +.\" Generator: DocBook XSL Stylesheets vsnapshot_8273 +.\" Date: 04/10/2009 +.\" Manual: System Administration Commands +.\" Source: Amanda 2.6.1p1 +.\" Language: English .\" -.TH "AMRESTORE" "8" "06/06/2007" "" "" +.TH "AMRESTORE" "8" "04/10/2009" "Amanda 2\&.6\&.1p1" "System Administration Commands" +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- .SH "NAME" -amrestore \- extract backup images from an Amanda tape +amrestore \- extract backup images from an \fIAmanda\fR tape .SH "SYNOPSIS" -.HP 10 -\fBamrestore\fR [\-r | \-c | \-C] [\-b | \fIblocksize\fR] [\-f | \fIfileno\fR] [\-l | \fIlabel\fR] [\-p] [\-h] \fItapedevice\fR|\ \fIholdingfile\fR [\fIhostname\fR [\fIdiskname\fR [\fIdatestamp\fR [\fIhostname\fR [\fIdiskname\fR [\fIdatestamp\fR | ...]]]]]] +.HP \w'\fBamrestore\fR\ 'u +\fBamrestore\fR [\-r | \-c | \-C] [\-b | \fIblocksize\fR] [\-f | \fIfileno\fR] [\-l | \fIlabel\fR] [\-p] [\-h] \fItapedevice\fR|\ \fIholdingfile\fR [\fIhostname\fR [\fIdiskname\fR [\fIdatestamp\fR [\fIhostname\fR [\fIdiskname\fR [\fIdatestamp\fR | \&.\&.\&.]]]]]] .SH "DESCRIPTION" .PP \fBAmrestore\fR @@ -27,70 +35,70 @@ that match \fIdiskname\fR and \fIdatestamp\fR -patterns given on the command line. The tape or holding file must be in a format written by the +patterns given on the command line\&. The tape or holding file must be in a format written by the \fBamdump\fR or \fBamflush\fR -program. +program\&. .PP If \fIdiskname\fR is not specified, all backups on the tape for the previous \fIhostname\fR -are candidates. If +are candidates\&. If \fIdatestamp\fR is not specified, all backups on the tape for the previous \fIhostname\fR and \fIdiskname\fR -are candidates. If no +are candidates\&. If no \fIhostname\fR, \fIdiskname\fR or \fIdatestamp\fR -are specified, every backup on the tape is a candidate. +are specified, every backup on the tape is a candidate\&. .PP \fIHostname\fR and \fIdiskname\fR are special expressions described in the "HOST & DISK EXPRESSION" section of -\fBamanda\fR(8). +\fBamanda\fR(8)\&. \fIDatestamp\fR are special expression described in the "DATESTAMP EXPRESSION" section of -\fBamanda\fR(8). For example, if +\fBamanda\fR(8)\&. For example, if \fIdiskname\fR is "rz[23]a", it would match disks \fBrz2a\fR and -\fBrz3a\fR. +\fBrz3a\fR\&. .PP \fIDatestamp\fR is useful if \fBamflush\fR -writes multiple backup runs to a single tape. +writes multiple backup runs to a single tape\&. .PP Unless \fB\-p\fR is used, candidate backup images are extracted to files in the current directory named: .PP -\fIhostname.diskname.datestamp.dumplevel\fR +\fIhostname\&.diskname\&.datestamp\&.dumplevel\fR .PP -Amrestore doesn't use a changer, it restore from the tape already loaded in the -\fItapedevice.\fR +Amrestore doesn\'t use a changer, it restore from the tape already loaded in the +\fItapedevice\&.\fR .SH "OPTIONS" .PP \fB\-b\fR .RS 4 -Set the blocksize used to read the tape or holding file. All holding files must be read with a blocksize of 32 KBytes. +Set the blocksize used to read the tape or holding file\&. All holding files must be read with a blocksize of 32 KBytes\&. \fBAmrestore\fR -should normally be able to determine the blocksize for tapes on its own and not need this parameter. +should normally be able to determine the blocksize for tapes on its own and not need this parameter\&. .RE .PP -The default is 32 KBytes. +The default is 32 KBytes\&. .PP \fB\-f\fR .RS 4 -Do a rewind followed by a fsf before trying to restore an image. +Do a rewind followed by a fsf before trying to restore an image\&. .RE .PP \fB\-l\fR @@ -101,108 +109,114 @@ Check if we restoring from the tape with the right .PP \fB\-p\fR .RS 4 -Pipe output. The first matching backup image is sent to standard output, which is normally a pipe to +Pipe output\&. The first matching backup image is sent to standard output, which is normally a pipe to \fBrestore\fR or \fBtar\fR, then \fBamrestore\fR -quits. It may be run again to continue selecting backups to process. Make sure you specify the no\-rewind +quits\&. It may be run again to continue selecting backups to process\&. Make sure you specify the no\-rewind \fItapedevice\fR -when doing this. +when doing this\&. .RE .PP Note: \fBrestore\fR -may report "short read" errors when reading from a pipe. Most versions of +may report "short read" errors when reading from a pipe\&. Most versions of \fBrestore\fR -support a blocking factor option to let you set the read block size, and you should set it to 2. See the example below. +support a blocking factor option to let you set the read block size, and you should set it to 2\&. See the example below\&. .PP \fB\-c\fR .RS 4 -Compress output using the fastest method the compression program provides. +Compress output using the fastest method the compression program provides\&. \fBAmrestore\fR normally writes output files in a format understood by \fBrestore\fR or -\fBtar\fR, even if the backups on the tape are compressed. With the +\fBtar\fR, even if the backups on the tape are compressed\&. With the \fB\-c\fR or \fB\-C\fR option, \fBamrestore\fR -writes all files in compressed format, even if the backups on the tape are not compressed. Output file names will have a -\fB.Z\fR +writes all files in compressed format, even if the backups on the tape are not compressed\&. Output file names will have a +\fB\&.Z\fR or -\fB.gz\fR +\fB\&.gz\fR extension depending on whether \fBcompress\fR or \fBgzip\fR -is the preferred compression program. This option is useful when the current directory disk is small. +is the preferred compression program\&. This option is useful when the current directory disk is small\&. .RE .PP \fB\-C\fR .RS 4 -Compress output using the best method the compression program provides (may be very CPU intensive). See the notes above about the +Compress output using the best method the compression program provides (may be very CPU intensive)\&. See the notes above about the \fB\-c\fR -option. +option\&. .RE .PP \fB\-r\fR .RS 4 -Raw output. Backup images are output exactly as they are on the tape, including the +Raw output\&. Backup images are output exactly as they are on the tape, including the \fBamdump\fR -headers. Output file names will have a -\fB.RAW\fR -extension. This option is only useful for debugging and other strange circumstances. +headers\&. Output file names will have a +\fB\&.RAW\fR +extension\&. This option is only useful for debugging and other strange circumstances\&. .RE .PP \fB\-h\fR .RS 4 -Header output. The tape header block is output at the beginning of each file. This is like +Header output\&. The tape header block is output at the beginning of each file\&. This is like \fB\-r\fR except \fB\-c\fR or \fB\-C\fR -may also be used to compress the result. +may also be used to compress the result\&. \fBAmrecover\fR -uses the header to determine the restore program to use. +uses the header to determine the restore program to use\&. .RE .PP -If a header is written (\-r or \-h), only 32 KBytes are output regardless of the tape blocksize. This makes the resulting image usable as a holding file. +If a header is written (\-r or \-h), only 32 KBytes are output regardless of the tape blocksize\&. This makes the resulting image usable as a holding file\&. .PP \fB\-o\fR \fIconfigoption\fR .RS 4 See the "\fBCONFIGURATION OVERRIDE\fR" section in -\fBamanda\fR(8). +\fBamanda\fR(8)\&. .RE .SH "EXAMPLES" .PP The following does an interactive restore of disk \fIrz3g\fR from host -\fIseine\fR, to restore particular files. Note the use of the +\fIseine\fR, to restore particular files\&. Note the use of the \fBb\fR option to -\fBrestore\fR, which causes it to read in units of two 512\-byte blocks (1 Kbyte) at a time. This helps keep it from complaining about short reads. +\fBrestore\fR, which causes it to read in units of two 512\-byte blocks (1 Kbyte) at a time\&. This helps keep it from complaining about short reads\&. .sp +.if n \{\ .RS 4 +.\} .nf % amrestore \-p /dev/nrmt9 seine rz3g | restore \-ivbf 2 \- .fi +.if n \{\ .RE -.sp +.\} .PP The next example extracts all backup images for host -\fIseine\fR. This is the usual way to extract all data for a host after a disk crash. +\fIseine\fR\&. This is the usual way to extract all data for a host after a disk crash\&. .sp +.if n \{\ .RS 4 +.\} .nf % amrestore /dev/nrmt9 seine .fi +.if n \{\ .RE -.sp +.\} .PP If the backup datestamp in the above example is 19910125 @@ -214,56 +228,63 @@ and \fIrz1g\fR on the tape, these files will be created in the current directory: .sp +.if n \{\ .RS 4 +.\} .nf -seine.rz1a.19910125.0 -seine.rz1g.19910125.0 +seine\&.rz1a\&.19910125\&.0 +seine\&.rz1g\&.19910125\&.0 .fi +.if n \{\ .RE -.sp +.\} .PP You may also use \fBamrestore\fR to extract a backup image from a holding disk file that has not yet been flushed to tape: .sp +.if n \{\ .RS 4 +.\} .nf -% amrestore \-p /amanda/20001119/seine.rz1a.2 | restore \-ivbf 2 \- +% amrestore \-p /amanda/20001119/seine\&.rz1a\&.2 | restore \-ivbf 2 \- .fi +.if n \{\ .RE -.sp +.\} .PP \fBAmrestore\fR may be used to generate a listing of images on a tape: .sp +.if n \{\ .RS 4 +.\} .nf % mt \-f /dev/nrmt9 rewind % amrestore \-p /dev/nrmt9 no\-such\-host > /dev/null .fi +.if n \{\ .RE -.sp +.\} .PP This asks \fBamrestore\fR to find images for host -\fBno\-such\-host\fR. It will not find any entries that match, but along the way will report each image it skips. +\fBno\-such\-host\fR\&. It will not find any entries that match, but along the way will report each image it skips\&. .SH "CAVEATS" .PP \fBGNU\-tar\fR -must be used to restore files from backup images created with the GNUTAR dumptype. Vendor tar programs sometimes fail to read GNU tar images. -.SH "AUTHOR" -.PP -James da Silva, -, University of Maryland, College Park: Original text -.PP -Stefan G. Weichinger, -, maintainer of the -\fIAmanda\fR\-documentation: XML\-conversion +must be used to restore files from backup images created with the GNUTAR dumptype\&. Vendor tar programs sometimes fail to read GNU tar images\&. .SH "SEE ALSO" .PP \fBamanda\fR(8), \fBamdump\fR(8), \fBamflush\fR(8), -\fBtar\fR(1) -\fBrestore\fR(8) +\fBtar\fR(1), +\fBrestore\fR(8), +: http://wiki.zmanda.com +.SH "AUTHORS" +.PP +\fBJames da Silva\fR <\&jds@amanda\&.org\&> +.PP +\fBStefan G\&. Weichinger\fR <\&sgw@amanda\&.org\&>