Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #562
Difficulty: Easy
Normally, the control flow of a program is sequential: each statement is executed right-to-left the next statement before the current statement.
True or False?
Linux & Unix Commands - Search Man Pages

xchkdmp(8) [redhat man page]

xchkdmp(8)					       JFS utility - dump fsck.jfs log file						xchkdmp(8)

NAME
xchkdmp - dump the contents of a JFS fsck log file created with xchklog SYNOPSIS
xchkdmp [ -f input.file ] [ -V ] DESCRIPTION
xchkdmp dumps the contents of a JFS fsck log file that was created by JFS utility xchklog. If no input file is specified, the default path and file name (<pwd>fscklog.new) is used. The output is written to standard out. OPTIONS
-f input.file Specifies the input file name and path. input.file must be 127 characters or less in length. input.file will be read from the present working directory unless it is fully qualified. -V Print version information and exit (regardless of any other chosen options). EXAMPLES
Dump the contents of the fsck service log in <pwd>fscklog.new: xchkdmp Dump the contents of the fsck service log in /temp/l9651107.log: xchkdmp -f /temp/l9651107.log REPORTING BUGS
If you find a bug in JFS or xchkdmp , please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site: http://oss.software.ibm.com/jfs Please send as much pertinent information as possible, including any xchkdmp error messages and the complete output of running fsck.jfs with the -v option on the JFS device. SEE ALSO
xchklog(8), mkfs.jfs(8), fsck.jfs(8), logdump(8), logredo(8), xpeek(8) AUTHOR
Barry Arndt (barndt@us.ibm.com) xchkdmp is maintained by IBM. See the JFS project web site for more details: http://oss.software.ibm.com/jfs January 11, 2001 xchkdmp(8)

Check Out this Related Man Page

mkfs.jfs(8)						     JFS file system creation						       mkfs.jfs(8)

NAME
mkfs.jfs - create a JFS formatted partition SYNOPSIS
mkfs.jfs [options] device DESCRIPTION
mkfs.jfs is used to create (format) a JFS partition. mkfs.jfs must be run as root. device is the special file name corresponding to the actual device (e.g. /dev/hdb1) on which a JFS file system will be created. The default block size is 4096. WARNING
mkfs.jfs will destroy all data on the specified device! OPTIONS
-c Check the device for bad blocks before building the file system. -L volume_label Set the volume label for the file system. -O Provide case-insensitive support for compatibility with OS/2. -q Quiet execution - do not ask for confirmation before creating the file system. -s log_size Set the log size (in megabytes). If the -s option is not used, the default log size is 0.4% of the aggregate size. -V Print version information and exit (regardless of any other chosen options). EXAMPLES
Format 3rd partition on 2nd hard disk with the volume label "JFS_hdb3": mkfs.jfs -L JFS_hdb3 /dev/hdb3 Format 5th partition on 1st hard disk, verifying each block created: mkfs.jfs -c /dev/hda5 REPORTING BUGS
If you find a bug in JFS or mkfs.jfs, please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site: http://oss.software.ibm.com/jfs Please send as much pertinent information as possible including any error messages resulting from running mkfs.jfs and the complete output of running fsck.jfs with the -v option. SEE ALSO
mkfs(8), fsck.jfs(8), extendfs(8), logdump(8), logredo(8), xchkdmp(8), xpeek(8) AUTHORS
Barry Arndt (barndt@us.ibm.com) William Braswell, Jr. mkfs.jfs is maintained by IBM. See the JFS project web site for more details: http://oss.software.ibm.com/jfs/ November 9, 2001 mkfs.jfs(8)

15 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

jfs (jfs2) for AIX versus Veritas

Hi there, Can anyone tell me the advantages that jfs has over Veritas (if any)?? Cheers. (5 Replies)
Discussion started by: rich
5 Replies

2. UNIX for Dummies Questions & Answers

creating jfs

Need help, I have read the docs but need some better understanding. Can someone explain the reasons behind setting the values for fragement size, i-node and allocation group size? Thanks, (6 Replies)
Discussion started by: kburrows
6 Replies

3. AIX

Lost+Found is not available

Hi, I have a AIX 4.3.3 running on IBM pseries server. I have some jfs filesystems running on it. I dont see Lost+Found directory in them. Can anybody guide me why it is not available. Cheers, Vinod.. (4 Replies)
Discussion started by: vinod2all
4 Replies

4. AIX

Can not extend a JFS file system

Hi, I am getting an error message when i try to increase the size of a filesystems under AIX 4.3.3: chfs: 0506-932 Can not extend a JFS file system with nbpi = 4096 and frag = 4096 past 134217728 (512 byte blocks). -> Characteristics Journaled File System ... (4 Replies)
Discussion started by: Can
4 Replies

5. UNIX for Dummies Questions & Answers

How to route error to log file in unix

Hey Every one I have a find statement which find the files and deletes them find /web/local/orderlink/batchmanaged01/scripts/SMOappLogs/log -name 'orderlink.log.*' -type f -mtime +$10-exec rm -f {} \; This statement if finds a file at the given location it will delete the files but if it... (4 Replies)
Discussion started by: pinky
4 Replies

6. AIX

160G SAN FS on JFS

Hi All, I can't create a FS from a SAN VG with size of 160G on JFS (NOT JFS2, requirement with application) with large file enabled. It only let me create 64G in maximum size. The actual size of SAN VG is also 160G, the FS can be smaller than 160G because of the inode allocation. Please... (1 Reply)
Discussion started by: itik
1 Replies

7. Web Development

How do I verify my web visitor is still online

Hello every one, I have a little issue that has been killing me now for the past couple of days, I have tried to find solutions online, but its been hard to, ok here it goes... I have created a site that is based on amount of user that have access at a time, based on cookie. So if the... (5 Replies)
Discussion started by: heman007
5 Replies

8. Filesystems, Disks and Memory

Performance Hit With Many Files

Is it slower to open or create a file in a directory with 1 million files than a directory with 1000 files? How much slower? Where can I find information about this? I'm mainly concerned about JFS on AIX, but also NTFS on Windows Server. Is there a difference? I'm trying to determine a good... (6 Replies)
Discussion started by: cyner
6 Replies

9. AIX

Cannot grow jfs file system on AIX 5.2

Hello all, I'm trying to grow a file system by 500MB using SMIT on AIX 5.2 but I receive this error: "0516-404 allocp: This system cannot fulfill the allocation request. There are not enough free partitions or not enough physical volumes to keep strictness and satisfy allocation requests.... (3 Replies)
Discussion started by: need2bageek
3 Replies

10. Programming

help with fseek

Hi, I working a c project in IBM AIX. I have a requirement like this. I have some contents in *temp. I am writing the contents of *temp to a file pointer ftemp (*ftemp for an tmp file tmpfile.txt) Now I want to read the contents of *ftemp in the reverse order an dneed to print it in the... (2 Replies)
Discussion started by: ramkrix
2 Replies

11. AIX

Jfs and jfs2

Hi all, Can anyone define the difference between jfs and jfs2 filesystem as well as usage of jfs log files.... Thanks.... (7 Replies)
Discussion started by: sumathi.k
7 Replies

12. AIX

Help with jfs

how to change the filesystem from jfs to jfs2 in ibm aix6.1 please tell me command for that. thank you, paandu (2 Replies)
Discussion started by: paandur
2 Replies

13. Shell Programming and Scripting

Compare the text/integer value from the log file

i have some log (temp.txt) file like temp.txt: Filesystem size used avail capacity Mounted on /dev/md/dsk/d30 9.8G 9.7G 14M 100% /opt /dev/md/dsk/d72 187M 61M 107M 37% /osmf/mgmt /dev/md/dsk/d71 187M 140M 29M 83% /export/home /dev/md/dsk/d70 7.9G 4.3G 3.5G 56% /var/crash /dev/md/dsk/d74... (6 Replies)
Discussion started by: doubt
6 Replies

14. AIX

Fsck -n on mounted FS - how unreliable ?

greetings all, we had SAN bobbles recently and so I ran fsck against all local FS on all systems. our domino servers present a moving set of alleged corruption, both JFS and JFS2 FS. Am I playing whack-a-mole with special effects (i.e. false positives) produced by vigorous filesystem... (9 Replies)
Discussion started by: maraixadm
9 Replies

15. Programming

Storing a Temporary File Using C

How would someone save a file such as /etc/vpnc/test.conf locally into a temp file, so it can be queried? So for example if I used rsync to copy this file locally, how would I add that to a temp_file variable and discard it using unlink? #include <stdio.h> #include "error.h" ... (15 Replies)
Discussion started by: metallica1973
15 Replies

Featured Tech Videos