On Mon, 28 Feb 2005 12:06:23 +0100, Richard Bos <radoeka@xs4all.nl> wrote:
I'm looking into RAID, and as such I started to read the suse manual and the raid howto on the web. I still have some questions that someone on this list can answer.
1) Is it possible to add a soft raid after installation? The system I want to extend with raid (raid 1) is already up and running on single disk system (it has 2 disks).
Don't know.
2) How does one enable hardware raid. The motherboard has an onboard hardware raid controller. The controller does not really seem to be supported by linux (Promise 378). Anyway, I ask this out of interest ;) In case of hardware should it be done via the bios or completely different?
Typically hardware raid has the initial setup performed at the BIOS level. Ongoing maintenance etc. is typically handled by the OS (kernel driver + userspace). For instance, to create a RAID 5 set you typically have to access the bios. Then later if you have a disk failure and you need to swap it out, the notification and swap-out management have to be handled without having to reboot the server, thus the driver / user space apps have to manage this process. Greg -- Greg Freemyer