Month: November 2013

Replicating block device with DRBD on Centos 6

30 November 2013

Replicating block device with DRBD on Centos 6 How to configure DRBD on CentOS 6 DRBD® refers to block devices designed as a building block to form high availability(HA) clusters – Distributed Replicated Block Device This is done by mirroring a whole block device via an assigned network. Distributed Replicated Block Device can be understood as network based raid-1.   Distributed Replicated Block […]

Flashcache on CloudLinux and CentOS and OpenVZ or SolusVM

24 November 2013

Flashcache on CloudLinux and CentOS and OpenVZ or SolusVM Major issue on a hosting server which serve hundreds of website is remain the same: I/O bottleneck. My curiosity began when I received a newsletter from a VPS provider in US, they said they have added SSD as filesystem cache to their server fleet. Flashcache is a […]