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ClearRack FAQs

What is an "instance"?

An instance is a computing environment, in this case a virtual one-a virtual server, a virtual machine that is established using software.  An actual hardware server can host multiple virtual servers or instances.

Can I Reconfigure my RAM and CPU options after my instance has been created?

Yes.  With your machine in stop mode, you can reconfigure the RAM and CPU options you selected in the Compute Offering step.  Note that this is a service that many other cloud server providers don't allow.  Without this feature you'll have to delete the server you've built and start over.

If I stop my virtual machine, will I continue to be billed?

Yes.  Even though stopped, the virtual machine continues to be stored on a server and absorb system resources.  If you want to stop being billed for an instance you created, simply delete that instance.

Can I manually change my network options?

No.  All networking options are automatically assigned by ClearRack.  IP addressed are generated automatically, and all virtual machines created are initially set up to share the same IP address.  If additional or dedicated IP addresses are required , they can be purchased for $2.00 each and assigned by ClearRack.

Is there a cost for IP addresses?

The first IP address is provided at no cost.  Additional IP addresses can be purchased for $2.00 each.  


Does ClearRack cloud hosting service offer Firewall services?

Yes.  With ClearRack, Firewall services are included free of charge with each cloud server.  

What is an "ISO image"?

An ISO (image is an archive file (also known as a disk image) of an optical disc conforming to ISO (International Organization for Standardization) standard 9960.

Can I save Snapshots of my data?

Yes.  To help mitigate data loss and a way of disaster recovery, users are given the capability of either taking adhoc snapshots of their disk volumes or setting up a comprehensive schedule for taking periodic snapshots of their data.  Users can set limits to the number of snapshots taken and manage how many are retained or how long they're retained.

What linux distros do you offer?

CentOS 6.4 and Ubuntu 12.4.03LTS.

How do I access and manage VMs independently when they all share the same IP?

There are a few different approaches you can take to manage each of your ClearRack VMs:

1. Use the console application in clear-rack to manage the servers

2. Map alternative ports to standard ports (Ex, map port 2201 on the external IP address to port 22 on server1, then 2202 to 22 on server2, etc)

3. Have each server’s SSH deamon listen on a different port.

4. Setup a VPN connection from your PC or network device to ClearRack.  You can then access the servers with their internal IP addresses.

5. Add an IP address for each server and do a static one-to-one mapping so each server has its own external IP address.

Which hypervisor does ClearRack use?

ClearRack uses XenServer hypervisor.

Why does ClearRack use the CloudStack platform rather than OpenStack?

CloudStack is truly an open platform.  OpenStack, as it turns out, not so much.  A recent report from research firm Gartner warns businesses to beware of considerable hype and says misconceptions about the open source cloud computing project are leading to "dangerous myths" that are impacting IT adoption and investments.  “OpenStack is a nascent technology driven by a group of self-serving vendors who are pushing their own agendas over the usability of the cloud management platform.”  Click here for the entire article, “Gartner report throws cold water on uber-hyped OpenStack project.”

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