on RAID1: is HDA+HDD okay?
On Sun, Aug 15 at 09:53PM -0700, Alvin Oga wrote:
> On Sun, 15 Aug 2004, Will Trillich wrote:
> > $ sfdisk -d
> > # partition table of /dev/hda
> > unit: sectors
> >
> > /dev/hda1 : start= 63, size= 192717, Id=83, bootable
> > /dev/hda2 : start= 192780, size= 1959930, Id=82
> > /dev/hda3 : start= 2152710, size=146480670, Id=83
> > /dev/hda4 : start=148633380, size= 7614810, Id=83
> > # partition table of /dev/hdb
> > unit: sectors
>
> this is bad ... you should be also convincing them to use
> hda and hdc ... for 2 disk raid
> - if the cable goes bad... you're dead
>
> - sometimes, depends on the bios and drives, if hda is not
> present, it will not see hdb
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).
so it's best to have a raid1 disk on each bus -- but do they
both have to be primary?
it'd be easier (i have to talk them thru this tomorrow a.m. on
the phone) to just move HDB to HDD (leaving the cd-rom at hdc)
or would that be a bad thing?
===
disk2:
HDA HDB HDC HDD
disk1:
HDA * n YES ?
HDB n * ? ?
HDC YES ? * n
HDD ? ? n *
so HDA+HDC is obviously recommended -- would HDB+HDD be okay? how
about HDA+HDD or HDB+HDC? what are the ramifications?
--
I use Debian/GNU Linux version 3.0;
Linux boss 2.4.18-bf2.4 #1 Son Apr 14 09:53:28 CEST 2002 i586 unknown
DEBIAN NEWBIE TIP #131 from Philipp <kernel@cyberraum.de>
:
So you want to RECOVER YOUR LINUX BOOT BLOCKS after
installing microso~1 windows on a partition:
1) boot from the Debian CD
2) change from the installation screen
to a console (ALT F2)
3) mount your root partition, for example:
mount /dev/hda2 /mnt
lilo is under /sbin/ which should be
on your root partition
4) change your root partition: chroot /mnt
5) now you are on your old system, edit lilo.conf
and add needed lines to boot windows.
6) execute lilo to reset your Master Boot Blocks: /sbin/lilo
Also see http://newbieDoc.sourceForge.net/ ...
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