RAID/LVM Root Filesystem on SuSE8.2

[David Bandel]

On Thu, 10 Feb 2005 17:58:59 -0500, Matthew Carpenter <matt at eisgr.com> wrote:
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> Speaking of "making the partitions equal or greater in size", I learned
> a slick trick reading this article  (if everybody promises not to tell I
> might scan the few pages and share) was the following line:
> 
> # sfdisk -d /dev/hdc | sfdisk /dev/hda
> 
> This is done once you've copied all the data from /dev/hda to the mirror
> (which only lives on /dev/hdc), and takes /dev/hdc's partitioning scheme
> and duplicates it to /dev/hda.  That's just slicker'n snot.
> 
> As for monitoring, which method of monitoring/notification do you use
> for failed disks?

umm.  mdadm? :
ps ax | grep mdadm
2150 ?        Ss     1:06 /sbin/mdadm -F -i /var/run/mdadm.pid -m root -f -s

when I installed mdadm, I was asked who to e-mail messages to.  the -m
root says mail to root (I get root's mail)

> 
> David Bandel wrote:
> | On Wed, 9 Feb 2005 14:00:36 -0800, Bill Campbell
> 
> | Well, I might agree if I were talking about GRUB.  But with LILO's
> | understanding of raid, it's no big deal.  In fact, I've already lost a
> | Maxtor 80Gb hdd (Maxtor must be out to lunch, I've lost a bunch of
> | their 80Gb hdds this past year) that contained both /boot and /root.
> | Were it not for raid, I'd have lost the contents of both (it was a
> | hard crash).  As it was, I removed hda, replaced with a Hitachi,
> | reboot (the /boot was on hdc and /root on hde if I remember correctly,
> | or maybe the reverse), partitioned remembering to make the partitions
> | equal or greater in size, added the partitions and let mdadm rebuild
> | all.  Down time (which happened a day after the crash) consisted of
> | the time it took to shutdown, remove the hard drive and replace with a
> | new one, then restart the system.  The system ran for a day after
> | mdadm sent me a note telling me hda was a goner (actually it said md0
> | and md2 were degraded).
> |
> | Ciao,
> |
> | David A. Bandel
> 
> - --
> Matthew Carpenter
> matt at eisgr.com                          http://www.eisgr.com/
> 
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