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Special Forums Hardware Filesystems, Disks and Memory backup NetApp using dump command Post 20800 by yellowfish on Sunday 5th of May 2002 04:38:31 AM
Old 05-05-2002
Question backup NetApp using dump command

I have been trying to backup my NetApp /vol/vol0 data to local tape drive. It is around 68GB.
The tape I am using is DLT tape and should be able to handle 70GB data. However, dump always
aborted around reaching 57~58GB data.
Tape drive is attached on NetApp.

1st try to dump /vol/vol0 to local drive (68GB) => dump aborted
2nd try to dump /vol/vol0/home to local tape drive (59GB) =>dump aborted
Any idea?

Here are some info
==========================================
NetApp filer name: netmgtfs1

root@woodstock> uname -a
SunOS woodstock 5.6 Generic_105181-15 sun4u sparc SUNW,Ultra-2

root@woodstock> rsh netmgtfs1 "mt -f nrst0a status"
Tape drive: Digital DLT7000
Status: ready, write enabled
Format: 85937 bpi 70 GB (w/comp)
fileno = 0 blockno = 0 resid = 0

root@woodstock> rsh netmgtfs1 "df "
Filesystem kbytes used avail capacity Mounted on
/vol/vol0/ 69580432 66787380 2793052 96% /vol/vol0/
/vol/vol0/.snapshot 17395108 2353816 15041292 14% /vol/vol0/.snapshot

root@woodstock> mount -F nfs netmgtfs1:/vol/vol0 /mnt
root@woodstock> ls /mnt
PROBLEM090199/ heaven1_org@ nms/ sunroot/
etc/ home/
global2/ nmd/

root@woodstock> du -sk home
59049872

root@woodstock>!!
rsh netmgtfs1 "dump 0uf nrst0a /vol/vol0/home"

DUMP: creating "/vol/vol0/../snapshot_for_backup.201" snapshot.
DUMP: Using Partial Volume Dump
DUMP: Date of this level 0 dump: Sat May 4 00:39:57 2002.
DUMP: Date of last level 0 dump: the epoch.
DUMP: Dumping /vol/vol0/home to nrst0a
DUMP: mapping (Pass I)[regular files]
DUMP: mapping (Pass II)[directories]
DUMP: estimated 58520516 tape blocks.
DUMP: dumping (Pass III) [directories]
DUMP: dumping (Pass IV) [regular files]
DUMP: We have written 1785109 KB to tape.
DUMP: We have written 3613470 KB to tape.
DUMP: We have written 5714735 KB to tape.
DUMP: We have written 7939329 KB to tape.
.....
DUMP: We have written 53961774 KB to tape.
DUMP: We have written 55563549 KB to tape.
DUMP: We have written 57590637 KB to tape.
DUMP: DUMP IS ABORTED
DUMP: Deleting "/vol/vol0/../snapshot_for_backup.201" snapshot.
 

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READ_TAPE(8)						       AFS Command Reference						      READ_TAPE(8)

NAME
read_tape - Reads volume dumps from a backup tape to a file SYNOPSIS
read_tape -tape <tape device> -restore <# of volumes to restore> -skip <# of volumes to skip> -file <filename> [-scan] [-noask] [-label] [-vheaders] [-verbose] [-help] DESCRIPTION
read_tape reads an OpenAFS backup tape and prompts for each dump file to save. This command does not require any OpenAFS infrastructure. This command does not need an OpenAFS client or server to be available, which is not the case with the backup(8) command. The dump files will be named for the Read/Write name of the volume restored. After saving each dump file, vos restore or restorevol can be used to restore the volume into AFS and non-AFS space respectively. read_tape reads the tape while skipping the specified number of volumes. After that, it restores the specified number of volumes. read_tape doesn't rewind the tape so that it may be used multiple times in succession. OPTIONS
-tape <tape device> Specifies the tape device from which to restore. -restore <# of volumes to restore> Specifies the number of volumes to restore from tape. -skip <# of volumes to skip> Specifies the number of volumes to skip before starting the restore. -file <filename> Specifies an alternate name for the restored volume dump file rather than the default of the volume name. -scan Scans the tape. -noask Doesn't prompt for each volume. -label Displays the full dump label. -vheaders Displays the full volume headers. -verbose Produces on the standard output stream a detailed trace of the command's execution. If this argument is omitted, only warnings and error messages appear. -help Prints the online help for this command. All other valid options are ignored. EXAMPLES
The following command will read the third through fifth volumes from the tape device /dev/tape without prompting: % read_tape -tape /dev/tape -skip 2 -restore 3 -noask PRIVILEGE REQUIRED
The issuer must have access to read and write to the specified tape device. SEE ALSO
backup(8), restorevol(1), vos_restore(1) COPYRIGHT
Copyright 2007 Jason Edgecombe <jason@rampaginggeek.com> This documentation is covered by the BSD License as written in the doc/LICENSE file. This man page was written by Jason Edgecombe for OpenAFS. OpenAFS 2012-03-26 READ_TAPE(8)
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