Categories: esata, file, linux, mail, Nagios, RAID, rsync, sata, virtualization, vpn, xp.
Virtualization is simply the coolest. I currently have 4 linux servers running. I consolidate my mail server in my web server, which takes one virtual machine. Another virtual machine is running a file server. The third is running a VPN for my iPhone. And the last server is running Nagios to monitor the uptime of all my servers. In addition I am concurrently running Windows XP for a program that graphically monitors the visitors to my websites. In the end I am only consuming about 1.5 Gigabytes of ram after all the virtual machines have fully loaded. I can have many many many more virtual machines, given that I have 5 Gigabytes of ram on my PC. This is power. Virtualization is power. The potential is incredible. Not to mention I have 3 hard drives in raid1 to ensure system stability in the case of hardware failure. I am going to set up the following: I want a 4′th hard drive, which I am going to connect via an external SATA port. They call these ports ESATA, which could have been seen a mile away. I am still debating weather to sync the drive via raid, or via rsync. A raid sync will be seamless, whereas rsync will probably consume some computing power. Also if something happens to the software on my PC the raid will copy the corruptions to the backup drive. Using rsync manually would most likely avoid copying corrupted data.