I have 4 drives.
I would like complete fault tolerance if a drive fails.
Is there a simple tutorial online that can show me how to do this in debian
??
On the first set of drives - I have created 2 raid partitions on each drive
- 1 for the root / filesystem (996gb) and the other for swap (4gb) - I have
4gb of ram in the server.
I managed to setup the / and the swap system but i think i am doing
something wrong with swap - when i do:
root@rider:~# cat /proc/mdstat
Personalities : [raid1]
md2 : active (auto-read-only) raid1 sdc1[0] sdd1[1]
976759672 blocks super 1.2 [2/2] [UU]
md1 : active (auto-read-only) raid1 sda2[0] sdb2[1]
4104180 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
972654456 blocks super 1.2 [2/2] [UU]
unused devices: <none>
It keeps showing up as read-only.
Further - I tried to use the 2 other drives as mirroring each other - md2 -
but it took a long time to mirror drives.
How can i do this after the system is setup ???
How can I create a filesystem on them???
How do I put MBRs on both drives that have the root filesytem (.).
thanks
mjh
On Mon, Jun 27, 2011 at 6:49 PM, Tom H <[email protected]> wrote:
> On Mon, Jun 27, 2011 at 7:43 AM, Joey L <[email protected]> wrote:
> >
> > I am trying to build a system that will give me as much tolerance as
> > possible.
> > I have (4) 1 Terabyte drives.
> > I have created 2 mirrored raid drives md0 and md1.
> > md0 has the / and boot partition on it.
> > and md1 has the data on lvm.
> > On /dev/sda I also have my swap partition on it.
> > I have tried to test what would happen if i loose my first drive in the
> root
> > partition /.
> > I get a blinking cursor - something is preventing the mirrored drive
> from
> > kicking in and booting.
>
> Have you installed grub the MBRs of sda and sdb?
>
>
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