Hot Adding a SCSI Device
Friday, July 11th, 2008 Posted in Linux, RAID | No Comments »When hot adding a SCSI device, such as a hard drive, you might have noticed that it doesn't show in /dev. You can either reboot, which defeats the purpose of hot adding the device, or notify Linux to rescan the ...
Useful Mdadm Commands
Sunday, December 16th, 2007 Posted in Linux, RAID | No Comments »Below is a collection of commands for mdadm that I have found useful. Use these at your own risk.
RAID Explained
Sunday, December 16th, 2007 Posted in Linux, RAID | No Comments »RAID, which stands for "redundant array of independent" disks provides a way to group disks into one volume and/or provide fault tolerance. There are three way to implement RAID: hardware, a combination of hardware/software, and software only.
Installing Debian/Ubuntu on an Existing RAID/LVM
Thursday, December 13th, 2007 Posted in Linux, RAID | No Comments »I like to test all the possible scenarios before putting a server into production. One of these tests was whether I could reinstall linux without disturbing the RAID arrays. Unfortunately the Debian and Ubuntu installers do not make this easy. ...