On 5/8/07, Rogelio Serrano <[EMAIL PROTECTED]> wrote:
..
create a small hardware raid partition for boot. 500 mb is fine. thats
what i do. but make sure your kernel has hardware raid support
builtin. or else you have to boot with initramfs
i dont use hardware raid because it is much slower than software raid.
and it willingly replicates filesystem blocks with errors. since the
boot partition is mostly read only thats fine.
Tell that to people like EMC and Veritas. They seem to have built
entire business models around hardware RAID..
That said, my approach is usually as follows.
Say you have two disks, in a RAID1 configuration.
Make identical partitions on the two disks. Each partition is like this:
1: 200MB /boot
2: 1000MB swap
3: the rest
stripe the 3rd partition on each disk. This is your RAID1 volume.
Have TWO swap partitions, the two 2nd partitions.
Have your /boot on the 1st partition of the 1st drive. After
installation, "dd" the entire 1st partition of the 1st drive to the
1st partition of the 2nd drive.
This way, even though your /boot is not RAID-ed, you have a backup
/boot so you can still boot with one drive failed.
Some people take this to an extreme. Silicon Graphics IRIX boxes for
example have a hidden partition called the "miniroot" on every drive.
You can boot off this miniroot in case your OS install gets hosed.
Kind of like having tomsbrt on every drive.
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