Apr 23

Cisco Prime NCS – The system is running low on diskspace

If you are running the Cisco Prime NCS or Infrastructure Appliance you may see the following error.

The system is running low on diskspace, please refer to online help to perform disk cleanup

I have received this twice now with my Prime Infrastructure (NCS) appliance. Each time I have found that the upgrade or install files were left in the defaultRepo directory along with all of the back up files.

To view these files you should start by looking in the defaultRepo directory. If you place your backup files or your install files some other place, you will have to look there.

This is what mine looked like

GoatPrime# dir disk:/defaultRepo

Directory of disk:/defaultRepo
1730387219 Dec 28 2012 09:43:50 PI-upgrade-bundle-
1860472744 Feb 20 2013 15:16:09 PI-upgrade-bundle-
16575516315 Apr 08 2013 01:19:54 backup-20130408-1200.tar.gpg
16875498727 Apr 10 2013 01:27:00 backup-20130410-1200.tar.gpg
16952316499 Apr 12 2013 01:27:06 backup-20130412-1200.tar.gpg
16893108395 Apr 14 2013 01:21:38 backup-20130414-1200.tar.gpg
17115151700 Apr 16 2013 01:26:38 backup-20130416-1200.tar.gpg
0 Dec 28 2012 09:40:40 ncs_patch-
11734212 Feb 20 2013 14:35:23 pi_1.2.1.12_update.tar.gz
0 Dec 28 2012 09:41:54 pi_1.2.1.12_upgrade-12.tar.gz

Usage for disk: filesystem
88297095168 bytes total used
35130003456 bytes free
130144694272 bytes available

To clear out files to create more disk space, you need to delete some files that are no longer needed. This is how you delete the files that are no longer needed.

GoatPrime# delete disk:/defaultRepo/PI-upgrade-bundle-
GoatPrime# delete disk:/defaultRepo/pi_1.2.1.12_update.tar.gz
Repeat this process until you have deleted all of the files that are no longer needed. If you have too many backup files, you should delete some of the older back up files.

Cisco made an attempt to fix this issue a bit easier then what I presented to you. You can always go to the command line and use the ncs cleanup command. This command deletes files from your system. Read all of the prompts carefully so you don’t delete something that you find important.

Reference: http://www.cisco.com/en/US/docs/wireless/prime_infrastructure/1.2/configuration/guide/tasks.html

**Either way, you use to resolve your problem, be careful and don’t delete files you need.

For the location in Prime to adjust your backup frequency click here.

If this does not solve your problem, please let us know what did fix your problem!!!

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Nov 06

Cisco’s wireless controller systems

Cisco has management software called “Wireless Control System” (WCS). This server based software manages wireless controllers and their Access Points.

Cisco then changed the name of this software to “Cisco Prime Network Control System” (NCS).

After version 1.1 of NCS, Cisco changed the name again, it is now “Cisco Prime Infrastructure”. Cisco Prime Infrastructure continues the version numbers starting at version 1.2.

When I received my NCS appliance I checked to make sure I had the latest version of software. NCS ended at version 1.1 and I thought I was at the latest revision. I found that I was not able to get NCS 1.1 to manage a controller running 7.3 software. I found out from my Cisco Account Team that NCS 1.1 was not compatible with WLC version 7.3 and that I needed to upgrade to 1.2. I then learned that I was NOT on the latest version and that the name changed. Nothing on the website where I checked for NCS software told me to look some other place, that was disappointing.

I did find out that you cannot export your data from WCS and import it into Cisco Prime Infrastructure 1.2. You can only migrate (import) WCS data into NCS 1.x. This left me discovering a lot of controllers and recreating all of my templates.

If you move from WCS to NCS, export your database from WCS into NCS 1.x, then upgrade to Infrastructure 1.2. WCS and NCS have the same look and feel. Infrastructure is completely different, for now, you can use the “legacy view” to get the WCS look and feel back.