Hi, guy!
On Thu, Feb 01, 2001 at 10:15:17AM +0200, you wrote the following:
> > Right now we don't mirror GNU; we don't mirror any Debian
> > architectures besides i386 (which is one of the reasons for us not
> > being able to get official mirror status); we don't mirror much of the
> > Red Hat archive (including the beta section, which may interest many
> > people, and other sections as well); we don't mirror Mandrake-devel;
> > and we're slowly running out of diskspace despite all that.
> >
> > With 2.4.1, we'll be able to take the new disks (for which I hope the
> > kind Aduva offer still stands), create an LVM volume on them, format
> > it with ReiserFS, copy the current mirror to it, and then add the old
> > disks to the volume to regain that space too.
>
> it's also possible to set up two seperate logical partitions. one'll
> remain the old one, one as the new one.
So we'll have two partitions with mirrors? I wouldn't like that. It
makes everything a lot more complicated.
> > We won't have RAID 5 in that case, but I think we can manage without
> > RAID 5, because the data on the mirrors is not very important
> > (i.e. it's not original data, and can be re-created in the worst
> > case). LVM should allow us to take a disk out of the volume without
> > destroying the filesystem, which is what we'll do if a disk starts
> > failing. (If the disk is totally dead it will be more problematic;
> > perhaps we should test it somehow?)
>
> the data is not criticla. however, if a single disk fails, we need to
> re-get ALL of the mirrored data from scratch - which is a painfull (and
> long...) task, when dealing with over 100GB of disk space...
>
> is there a way to add a new disk to an existing RAID-ed file system, in a
> similar manner to how you describe this with LVM?
I don't think so. To be completely sure, I'll subscribe to
linux-raid@vger and ask the question there.
How about hardware RAID controllers? Does any one of them support that?
I guess I'll ask that too.
> > Someone in close proximity to the server (Guy?) -- get there, install
> > the new disks, and do the copy procedure.
>
> no problem with that part. just make sure all those hard disks are somehow
> placed in a single array, rather as several seperate boxes (i assume for a
> set of external hard drives plus a new SCSI controller - the existing
> controller(s) already support a few disks. having more disks will make
> internal-machine copy operations work faster, i guess.
Does our current SCSI adapter have an external connector? If it does,
we can connect the external array to there. Why do we need a second
SCSI adapter?
--
Alex Shnitman | http://www.debian.org
[EMAIL PROTECTED], [EMAIL PROTECTED] +-----------------------
http://alexsh.hectic.net UIN 188956 PGP key on web page
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Good advice is something a man gives when he is too old to set a bad example.
-- La Rouchefoucauld
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