>-----Original Message-----
>From: Michael 'Moose' Dinn [mailto:michael.dinn AT airfire DOT ca]
>Sent: Thursday, January 13, 2011 2:16 PM
>To: Sorin Srbu
>Subject: Re: [BackupPC-users] OT: New backup server with 6TB disk space
>
>
>You don't need GPT at all for this.
>
>Install the OS on a 300G disk (or whatever), then make a single
>partition on
>all of your 1T disks.
>
>Then, create your large raid disk:
>
>mdadm --create /dev/md1 -n 6 -l 5 /dev/sd[bcdefg]1
>
>then just mke2fs -t ext4 /deev/md1

That would work too? Then what's all this with "GPT is a must if you want to
use sizes bigger than 2TB"?


>(and yes that's a raid5, not raid 0... raid 0 for backups is not your
>friend!)

Ah, yes... I know. 8-) However, last time I used a raid5 with BPC the
backup-storage got all screwed up for some reason after having worked
flawlessly for some time, necessitating a complete rebuild of the array.
Since then I'm not too keen on raid5, although raid5 would theoretically be
ideal. 8-/ 
        I feel raid5 gives me a false sense of security. I do however run
raid5 on a Dell PE with a PERC-raid controller. There it has worked fine for
a few years now. Maybe software raid5 isn't as stable as its hardware
counterpart. Speculations, speculations...
-- 
/Sorin

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