[lug] pleas help raid1

[Jason]

now this helps...thanks. so i will try this and get back to you...is it
common to get stopped at boot up and droped to a semi shell to reconsruct
your raid array..or was i getting this because my diskthat i was adding
had a mbr but my primary disk (that i was using the boot floppy to boot)
didnt?..anyway im at home now so ill try it tommorow.
thanks again
jd

On Thu, 4 Oct 2001, Chuck Morrison wrote:

> Try this
> 
> http://www.linuxdoc.org/HOWTO/Software-RAID-HOWTO-6.html
> 
> here's the first section:
> 
> 6. Reconstruction
> If you've read the rest of this HOWTO, you should already have a pretty good 
> idea about what reconstruction of a degraded RAID involves. I'll summarize: 
> Power down the system 
> Replace the failed disk 
> Power up the system once again. 
> Use raidhotadd /dev/mdX /dev/sdX to re-insert the disk in the array 
> 
> >>>NOTE: this is using scsi disks, you would want to use /dev/hdc if that is 
> where your new disk is now<<<
> 
> Have coffee while you watch the automatic reconstruction running 
> And that's it. 
> Well, it usually is, unless you're unlucky and you RAID has been rendered 
> unusable because more disks than the ones redundant failed. This can actually 
> happen if a number of disks reside on the same bus, and one disk takes the 
> bus with it as it crashes. The other disks, however fine, will be unreachable 
> to the RAID layer, because the bus is down, and they will be marked as 
> faulty. On a RAID-5 where you can spare one disk, loosing two or more disks 
> can be fatal. 
> The following section is the explanation that Martin Bene gave to me, and 
> describes a possible recovery from the scary scenario outlined above. It 
> involves using the failed-disk directive in your /etc/raidtab, so this will 
> only work on kernels 2.2.10 and later. 
> ...
> 
> 
> 
> On Thursday 04 October 2001 21:01, you wrote:
> > <br><br><br>  Jason Davis
> >    jd_480 at hotmail.com
> > the web site u pointed me to i have read...it helped somewhat with
> > installing...i have found the redhat docs to be the best..however the docs
> > i have read are great for setup and assume you know how to recover from
> > disk failure ..i think my problem is that i used the redhat gui to setup
> > raid during instillation so i have no grasp on what really happend..so..i
> > guess ill start checking out the raid tools in rh7.1...could some one tell
> > me where i might want to start?
> 
> /usr/share/doc/
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