cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements

This community is for technical, feature, configuration and deployment questions.
For production deployment issues, please contact the TAC! We will not comment or assist with your TAC case in these forums.
Please see How to Ask the Community for Help for other best practices.

1067
Views
0
Helpful
2
Replies
Arne Bier
VIP Advisor

Shrink ISE disk utilization

Hello

What are the chances of getting to the Linux CLI on an ISE node?  Or even, running a command as root user? 

I am not in the fortunate position of being able to nail up 200GB of disk space for all of my lab PSN's - therefore I made them all as thin-provisioned - which works really well in a lab.  I recognise that one doesn't do this for production and therefore the general practice is to thick provision.

But the VM's are growing and even if I purge all the logs, the free space is not reclaimed, and the VMWare Disk compress option does not work via GUI.  For performance reasons my VM's are on SSD and the space is at a premium - therefore I want to shrink the .vmdk's because they will eventually expand to 200GB and that is untenable.

VMWare Linux VM's have a solution to this but it requires root access.

  I have had good success on CentOS 7 with the shrink command

vmware-toolbox-cmd disk shrinkonly      to manage the reclaiming of free space.

Perhaps someone has an alternative suggestion?

thanks

Arne

1 ACCEPTED SOLUTION

Accepted Solutions

Hi Tim

thanks for letting me know about the patch.

I have devised my own method of shrinking the disks and have found substantial savings in doing this.  In one case I recovered over 20GB of SSD in one node - an that is from a VM that has been running for only 2 months.

The method involves shutting down the VM, making a backup of the .vmdk, installing the .vmdk on another Linux host (HDD hot add), mounting the various ext4 file systems and then running wipe&shrink on them.  Takes a bit of time but this is something that can run on the weekend when the lab is not in use.  For me there are real $$$ savings involved in doing this, especially for large labs.

View solution in original post

2 REPLIES 2
Timothy Abbott
Cisco Employee

Hi Arne,

The only way to get root access to ISE is through the use of a root patch.  The root patch can only be issued from TAC.

Regards,

-Tim

Hi Tim

thanks for letting me know about the patch.

I have devised my own method of shrinking the disks and have found substantial savings in doing this.  In one case I recovered over 20GB of SSD in one node - an that is from a VM that has been running for only 2 months.

The method involves shutting down the VM, making a backup of the .vmdk, installing the .vmdk on another Linux host (HDD hot add), mounting the various ext4 file systems and then running wipe&shrink on them.  Takes a bit of time but this is something that can run on the weekend when the lab is not in use.  For me there are real $$$ savings involved in doing this, especially for large labs.

View solution in original post

Create
Recognize Your Peers
Content for Community-Ad

ISE Webinars



Did you miss a previous ISE webinar?

CiscoISE YouTube Channel