Everyone has experienced the phenomenon of dealing with their savings or checking account banks. When they deposit a check, the bank is quick to credit, while when they write a check, they are slow to debit. This is a phenomenon of accounting, ie take in money as quickly as possible, but dole it out as slowly as possible. At root it is at the heart of cash flow. In this month’s newsletter we discuss some of the challenges inherent in business as belts are tightened and budgets constrict.
Archive for January, 2010
In part two of our article on DRBD and High Availability, we take you step-by-step through setting up Sun’s Virtualbox software, creating a couple of VMs, and then installing CentOS on those. These two virtual Linux boxes then serve as two nodes in our DRBD mirrored disk setup which we use as a platform to install MySQL.
DRBD, MySQL and the Virtualbox Setup – Database Journal
Keep on the lookout for our third part in the series next month. In that issue we’ll explain how the Linux Heartbeat project can be used to control the whole setup, and provide automatic failover in the event that one node goes down.