how do I uninstall a ramdisk?

[tgriep]

The ram disk install script should of backed up the changed files to this folder.

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/usr/local/nagios/ramdiskbackup/

The hard part is that if you edited those files since installing the ramdisk, restoring them could make things worse.
Also, it looks like your settings are customized with pnp4nagios so restoring the settings may be even trickier.

[benhank]

good news there werent any changes after the ram disk was set up.
so just retoring the backed up files and unmounting the disk will do the trick?

[tgriep]

Yes, that should do it for you.
If possible, make a full backup of the server before restoring those files.

[lmiltchev]

so just retoring the backed up files and unmounting the disk will do the trick?

You will have to delete the "/etc/sysconfig/nagios"

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rm -f /etc/sysconfig/nagios

and reboot.

Other than that, you need to revert all of the changes you made. Doing this manually would be:

1. Remove the nagiosramdisk directory:

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rm -rf /var/nagiosramdisk

2. Open /usr/local/nagios/etc/nagios.cfg and change the lines below from this:

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service_perfdata_file=/var/nagiosramdisk/service-perfdata
host_perfdata_file=/var/nagiosramdisk/host-perfdata
check_result_path=/var/nagiosramdisk/spool/checkresults
object_cache_file=/var/nagiosramdisk/objects.cache
status_file=/var/nagiosramdisk/status.dat
temp_path=/var/nagiosramdisk/tmp

to this:

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service_perfdata_file=/usr/local/nagios/var/service-perfdata
host_perfdata_file=/usr/local/nagios/var/host-perfdata
check_result_path=/usr/local/nagios/var/spool/checkresults
object_cache_file=/usr/local/nagios/var/objects.cache
status_file=/usr/local/nagios/var/status.dat
temp_path=/tmp

3. Open the "/usr/local/nrdp/server/config.inc.php" and change this:

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$cfg["check_results_dir"]="/var/nagiosramdisk/spool/checkresults";

to this:

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$cfg["check_results_dir"]="/usr/local/nagios/var/spool/checkresults";

4. Open the "/usr/local/nagiosxi/html/config.inc.php" and change this:

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$cfg['xidpe_dir'] = '/var/nagiosramdisk/spool/xidpe/';
$cfg['perfdata_spool'] = '/var/nagiosramdisk/spool/perfdata/';

to this:

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$cfg['xidpe_dir'] = '/usr/local/nagios/var/spool/xidpe/';
$cfg['perfdata_spool'] = '/usr/local/nagios/var/spool/perfdata/';

5. Open the "/usr/local/nagios/etc/pnp/npcd.cfg" and change this:

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perfdata_spool_dir = /var/nagiosramdisk/spool/perfdata/

to this:

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perfdata_spool_dir = /usr/local/nagios/var/spool/perfdata/

6. Open the "/usr/local/nagiosmobile/include.inc.php" and change this:

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STATUS_FILE = "/var/nagiosramdisk/status.dat";
$OBJECTS_FILE = "/var/nagiosramdisk/objects.cache";

to this:

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$STATUS_FILE  = "/usr/local/nagios/var/status.dat";
$OBJECTS_FILE = "/usr/local/nagios/var/objects.cache";

7. Restart services:

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service nagios restart
service httpd restart
service npcd restart

8. Go to the CCM->Commands, type "perfdata-file-bulk" in the search bar, and hit "Enter".

Modify the "process-host-perfdata-file-bulk" command so that it looks like this:

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/bin/mv /usr/local/nagios/var/host-perfdata /usr/local/nagios/var/spool/xidpe/$TIMET$.perfdata.host

Save.

Modify the "process-service-perfdata-file-bulk" command so that it looks like this:

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/bin/mv /usr/local/nagios/var/service-perfdata /usr/local/nagios/var/spool/xidpe/$TIMET$.perfdata.service

Save. Apply Configuration.

You can check if you were able to make all of the necessary changes by running:

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watch -n 1 "ls /usr/local/nagios/var/spool/xidpe | wc -l"

and

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watch -n 1 "ls /usr/local/nagios/var/spool/perfdata | wc -l"

Wait for a few minutes after running each command, and make sure the numbers are changing to 0 once in a while (the perfdata is being processed).

You can exit the command by pressing Ctrl+c.

Let us know if this helped.

[benhank]

Worked like a charm! thanks Ludmil!
BTW, the ramdisk script and the ramdisk disk itself was awesome! I just forgot that we'd made some modifications that need to be taken into account befor we use a ramdisk again. you guys can lock it up.

[dwhitfield]

Glad to hear it is resolved. I am going to lock the thread. Please feel free to post again if you have you another issue. Thank you for using the Nagios forums!