[CentOS] Re: Backup strategy using 2 HDD + 2 drawers

Ugo Bellavance ugob at camo-route.com
Thu Jan 12 15:59:49 UTC 2006


Rodrigo Barbosa wrote:
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> On Thu, Jan 12, 2006 at 09:31:54AM -0500, Ugo Bellavance wrote:
>>> Anyway, if you want to "sync up" two drives periodically, I'd suggest 
>>> either using software RAID 1, and re-adding the drive to a normally-broken 
>>> array, (look for the software RAID howto) or using rsync. (The latter 
>>> doesn't perform nearly as well as the former, but has fewer dependencies 
>>> at the filesytem level) 
>>>
>>> It all depends on what you're really after... 
>> I thought about those 2 already... I don't know RAID much so it might be 
>> an opportunity to learn.  I just don't want to break anything.  I know 
>> rsync so there is less risk.  Maybe DRBD?
> 
> DRBD ? Talk about risk. That is not for the faint of heart, and it is
> very easy to get it out of sync. Useful tool, but a real PITA.
> 
> RAID 1 looks like your best option.

But RAID 1 would require me to remake the partitions on the disks?  I 
don't have room to put the data elsewhere.  I have 117 Go of data on one 
disk (hde).  Could I create the partitions on the other disk, then copy 
over to the other disk (hdg), then create the raid?

Thanks,

> 
> - -- 
> Rodrigo Barbosa <rodrigob at suespammers.org>
> "Quid quid Latine dictum sit, altum viditur"
> "Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)
> 
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-- 
Ugo

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