OpenStack: Nova components HA
I wrote all the missing resource agents related to the nova ecosystem. All the RAs are available on my Github. All the ’nova’ RAs mainly re-use the structure of the resource agent written …
Read more →OpenStack: Glance and Keystone HA
The purpose of this article is to achieve high-availability for some OpenStack components.
Read more →Use RBD on a client
Quick tip on Ceph. The linux kernel RBD (rados block device) driver allows striping a linux block device over multiple distributed object store data objects. The libceph module takes care of that.
Read more →Setup Cloud Pipe VPN in OpenStack
This article mainly re-uses the OpenStack official documentation. Since the latter has errors in it, I fixed them. It’s fully functionnal under Ubuntu 12.04 distro.
Read more →Introducing FlashCache
FlashCache is a generic write back block level storage caching solution developed by Facebook. It’s actively used in production within Facebook and released as GPL v2 license.
Read more →Delete a tenant in OpenStack
If you are running on OpenStack Essex, you should have some problem to delete a tenant.
Read more →Introducing Ceph to OpenStack
Managing Open Source Cloud Platforms
Several ways to manage your private cloud with Open Source softwares!
Read more →Differences between active-active and active-passive cluster
Common thoughts and working of clustering forms. Pick up from the Sybase HA documentation. Good reminder :-)
Read more →Connection state of a NIC
Sometimes you want to know if the network cable is plug but you don’t want to go to the server room.
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