disks and file systems
Seems like hard disks have been quite a popular topic for me recently and there are a few things I've actually learnt in the process. Things like chosing filesystem formats, disk recovery and raiding. It all started with my recent disk upgrades which forced me to start doing stuff again. Here's what I learnt. Fact 1: Hardware SATA raid on your motherboard is actually software raid on the bios. Fact 2: Disk performance can be determined by quite a few factors, the easy things to do without getting into tweaking your kernel is to ensure that you have the right cables. Check that SMART is enabled (through the BIOS) and your DMA is on. Here are some useful commands # smartctl -a /dev/hda # hdparm -d /dev/hda Fact 3: Choose the right filesystem and stick to it. Easiest to use this as a default install as well. I think most Redhat install types use EXT3. Although other filesystems might be better for different purposes, running different filesystems will add additional load to diffe...