Re: on RAID1: is HDA+HDD okay?

[Alvin Oga <aoga@ns.Linux-Consulting.com>]

hi ya will

On Tue, 17 Aug 2004, Will Trillich wrote:

> lemme check to make sure i grok the recommendation -- HDA and
> HDB are primary and secondary on the first bus (C: and D: in
> windows parlance), and HDC and HDD are primary and secondary on
> the second bus (E: and F: in windows parlance).

yup
 
> so it's best to have a raid1 disk on each bus -- but do they
> both have to be primary?

the problem is ... on some bios and drives, if hda is dead,
sometimes it never see hdb  ( so its bad to use hda and hdb )

it's also bad to use hda and hdb because its "ide" on one ide cable
so one disk have to wait for the other disk

best config: hda + hdd  and  hdb + hdc
	- both raid has a primary disk and a slave

- if you have a cdrom, put that on a $5 or $20 pci ide card
	- do NOT mix cdrom/dvd drives with disks on the same
	ide cable

c ya
alvin