Re: Re: A question about RAID and partitions

[centos@xxxxxxxxxxxxxxx]

On Tue, 22 May 2007 16:53:32 -0700
Scott Silva <ssilva@xxxxxxxxxxxx> wrote:

> > Which one would be better under the aspects of performance (CPU
> > utilization, disk
> > transfer rate, etc), data security and ability to recover from
> > a disk crash?
> > 
> > Does LVM bring a performance penalty?
> I don't think LVM brings any penalty.

That's because you have not tried to recover an LVM. I had one
with Raid1 and when drive1 failed, Boot was on disk 0.

I was hoping to able to boot from disk 0 then to put a new disk
next day... To make a short story even shorter, no go. I had to
restore from a 3 days old backup.

LVMs are very convenient for adding new drive and making them
larger. I don't know of a live-CD that supports LVMs.

-- 
Thanks
http://www.911networks.com
When the network has to work
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