RHCS6: Show/Add GFS2/GFS journals

RHCS: Show/Add GFS2/GFS journals

# Tested on RHEL 6/gfs2 and RHEL 5/gfs

# GFS2 -------------------------------

# Showing journals of a gfs2 filesystem

gfs2_tool journals /<mountpoint>

   journal2 - 128MB
   journal3 - 128MB
   journal1 - 128MB
   journal0 - 128MB
   4 journal(s) found.


# Adding journals to a gfs2 filesystem

gfs2_jadd -j <journals_to_add> -J <journal_size_in_MB> /<mountpoint>



# GFS --------------------------------


# Showing journals of a gfs filesystem is a little bit more complex

# There's no "journals" option. We have to use "jindex" instead but output
# is a bit cryptic; it shows the number of 64K segments

gfs_tool jindex /<mountpoint> | egrep "Journal|segment"
   Journal 0:
     ji_nsegment = 2048
   Journal 1:
     ji_nsegment = 2048
   Journal 2:
     ji_nsegment = 2048
   Journal 3:
     ji_nsegment = 2048

# In this case we have 2048 seg * 64K/seg = 128M


# Adding journals to a gfs filesystem

gfs_jadd -j <journals_to_add> -J <journal_size_in_MB> /<mountpoint>
0 (0)
Article Rating (No Votes)
Rate this article
Attachments
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Full Name
Email Address
Security Code Security Code
Related Articles RSS Feed
high swap space utilization in LINUX
Viewed 4877 times since Fri, Jul 13, 2018
Using IOzone for Linux disk performance analysis
Viewed 4868 times since Wed, Jul 25, 2018
RHCS6: Mirror/unmirror a GFS2 volume
Viewed 3865 times since Sun, Jun 3, 2018
HowTo: Retrieve Email from a POP3 Server using the Command Line
Viewed 5620 times since Mon, Feb 18, 2019
Linux 20 Netstat Commands for Linux Network Management
Viewed 7931 times since Mon, Sep 21, 2020
Find All Large Files On A Linux System
Viewed 1013 times since Mon, Oct 29, 2018
How to automate SSH login with password? ssh autologin
Viewed 1095 times since Fri, Jun 8, 2018
How to Clear RAM Memory Cache, Buffer and Swap Space on Linux
Viewed 744 times since Mon, Nov 23, 2020
LVM: Extend SWAP size by adding a new Logical Volume
Viewed 1086 times since Sat, Jun 2, 2018
HP-UX - Stunnel Configuration
Viewed 1069 times since Fri, Sep 28, 2018