How to safely copy full filesystems with large files (10Gb files)
Hello everyone. Need some help copying a filesystem. The situation is this: I have an oracle DB mounted on /u01 and need to copy it to /u02. /u01 is 500 Gb and /u02 is 300 Gb. The size used on /u01 is 187 Gb. This is running on solaris 9 and both filesystems are UFS.
But when the command finishes I end up with 207 Gb copied on /u02!!!!, my question is... why !!!???, where did the extra 20 Gb come from???
Any ideas on why this happens and how I can safely copy from /u01 to /u02?, I have to be sure since this is a production DB.
PD: The /u01 has files that are 10 Gb large... could this be the problem?, can cpio handle large files? (I thought it could!, I've used it before to copy 2GB files without problems...)
Thanks in advance!
Last edited by Neo; 09-27-2010 at 04:04 PM..
Reason: code taggies
Determining if an OS is using 32 or 64 bits
This may be our number one question. Sadly I have not been able to find a definitive answer for Linux. If you have a Linux solution, please post it in our Linux forum. I will edit this post to include it.
32 / 64 bit (Solaris)
hp-ux ... (0 Replies)
I have never heard of this before but someone at work here says there is a command to find files that are under currently mounted filesystems. Does anyone know what this command is and is it available on HP-UX? (3 Replies)
Hi all,
Am writing a script that does a rm/mv if a file exist, however, in one scenario, one of the variables which is supposed to a variable for a directory is undefined/blank so instead of the variable resolving to /tmp/logfile.dmp, it resolves instead to / so the rm translates to a rm /... (2 Replies)
Hi All,
I have a CentOS operating system installed. I work with really huge number of files which are not only huge in number but some of them really huge in size. Minimum number of files could be 1 million to 2 million in one directory itself. Some of the files are even several Gigabytes in... (2 Replies)
I need to pull down a good bit of files for another support team for an upgrade project. I have a server.list with all of the server names.
I need to do two parts:
FIRST:
I have this example, but it does not list the server name in front of each line.
#! /bin/bash
for server in $(<... (10 Replies)
I wanted to know whether all files under /tmp can be safely removed. I guess that /tmp may also have temporary files for applications currently being worked on, so at the most those applications may just shut down.
I hope that my question is clear whether all files under /tmp can be safely... (5 Replies)
Hello.
I use this command :
rsync -av --include=".*" --dry-run "$A_FULL_PATH_S" "$A_FULL_PATH_D"The data comes from the output of a find command.
And no full source directories are in use, only some files.
Source example... (2 Replies)
Hey Guys,
I'm swamped writing code for the forums:
Could someone write a script or command line to safely delete files with special chars in filenames from a directory:
Example:
-rw-r--r-- 1 root root 148 Apr 30 23:00 ?xA??
-rw-r--r-- 1 root root 148... (8 Replies)
Discussion started by: Neo
8 Replies
LEARN ABOUT NETBSD
cpio
CPIO(1) BSD General Commands Manual CPIO(1)NAME
cpio -- copy file archives in and out
SYNOPSIS
cpio -o [-AaBcLvZz] [-C bytes] [-F archive] [-H format] [-O archive] < name-list [> archive]
cpio -i [-6BbcdfmrSstuvZz] [-C bytes] [-E file] [-F archive] [-H format] [-I archive] [pattern ...] [< archive]
cpio -p [-adLlmuv] destination-directory < name-list
DESCRIPTION
The cpio command copies files to and from a cpio archive. If the archive is of the form: [[user@]host:]file then the archive will be pro-
cessed using rmt(8).
The options are as follows:
-o, --create
Create an archive. Reads the list of files to store in the archive from standard input, and writes the archive on standard output.
-a, --reset-access-time
Reset the access times on files that have been copied to the archive.
-A, --append
Append to the specified archive.
-B Set block size of output to 5120 bytes.
-c Use ASCII format for cpio header for portability.
-C bytes
Set the block size of output to bytes.
-F archive
-O archive
Use the specified file name as the archive to write to.
-H format
Write the archive in the specified format. Recognized formats are:
bcpio Old binary cpio format.
cpio Old octal character cpio format.
sv4cpio SVR4 hex cpio format.
tar Old tar format.
ustar POSIX ustar format.
-L Follow symbolic links.
-v Be verbose about operations. List filenames as they are written to the archive.
--xz Compress/decompress archive using xz(1) format.
-Z Compress archive using compress(1) format.
-z Compress/decompress archive using gzip(1) format.
-i, --extract
Restore files from an archive. Reads the archive file from standard input and extracts files matching the patterns that were speci-
fied on the command line.
-b Do byte and word swapping after reading in data from the archive, for restoring archives created on systems with a different
byte order.
-B Set the block size of the archive being read to 5120 bytes.
-c Expect the archive headers to be in ASCII format.
-C bytes
Read archive written with a block size of bytes.
-d, --make-directories
Create any intermediate directories as needed during restore.
-E file, --pattern-file file
Read list of file name patterns to extract or list from file.
-f, --nonmatching
Restore all files except those matching the patterns given on the command line.
-F archive, --file archive
-I archive
Use the specified file as the input for the archive.
-H format, --format format
Read an archive of the specified format. Recognized formats are:
bcpio Old binary cpio format.
cpio Old octal character cpio format.
sv4cpio SVR4 hex cpio format.
tar Old tar format.
ustar POSIX ustar format.
-m Restore modification times on files.
-r, --rename
Rename restored files interactively.
-s Swap bytes after reading data from the archive.
-S, --swap-halfwords
Swap words after reading data from the archive.
-t, --list
Only list the contents of the archive, no files or directories will be created.
-u, --unconditional
Overwrite files even when the file in the archive is older than the one that will be overwritten.
-v, --verbose
Be verbose about operations. List filenames as they are copied in from the archive.
-z Uncompress archive using gzip(1) format.
-Z Uncompress archive using compress(1) format.
-6 Process old-style cpio format archives.
-p, --pass-through
Copy files from one location to another in a single pass. The list of files to copy are read from standard input and written out to
a directory relative to the specified directory argument.
-a Reset the access times on files that have been copied.
-d Create any intermediate directories as needed to write the files at the new location.
-l, --link
When possible, link files rather than creating an extra copy.
-L, --dereference
Follow symbolic links.
-m, --preserve-modification-time
Restore modification times on files.
-u, --unconditional
Overwrite files even when the original file being copied is older than the one that will be overwritten.
-v, --verbose
Be verbose about operations. List filenames as they are copied.
--force-local
Do not interpret filenames that contain a ':' as remote files.
--insecure
Normally cpio ignores filenames that contain ``..'' as a path component. With this option, files that contain ``..'' can be
processed.
EXIT STATUS
cpio will exit with one of the following values:
0 All files were processed successfully.
1 An error occurred.
Whenever cpio cannot create a file or a link when extracting an archive or cannot find a file while writing an archive, or cannot preserve
the user ID, group ID, file mode, or access and modification times when the -p option is specified, a diagnostic message is written to stan-
dard error and a non-zero exit value will be returned, but processing will continue. In the case where cpio cannot create a link to a file,
cpio will not create a second copy of the file.
If the extraction of a file from an archive is prematurely terminated by a signal or error, cpio may have only partially extracted the file
the user wanted. Additionally, the file modes of extracted files and directories may have incorrect file bits, and the modification and
access times may be wrong.
If the creation of an archive is prematurely terminated by a signal or error, cpio may have only partially created the archive which may vio-
late the specific archive format specification.
SEE ALSO pax(1), tar(1)AUTHORS
Keith Muller at the University of California, San Diego.
BUGS
The -s and -S options are currently not implemented.
BSD June 18, 2011 BSD
09-27-2010
How to safely copy full filesystems with large files (10Gb files)
!!!???, where did the extra 20 Gb come from???