On 2/19/2010 9:42 AM, Ralf Gross wrote:
> Les Mikesell schrieb:
>> Ralf Gross wrote:
>>>
>>> I think I've to look for a different solution, I just can't imagine a
>>> pool with>  10 TB.
>>
>> Backuppc's usual scaling issues are with the number of files/links more than
>> total size, so the problems may be different when you work with huge files.  
>> I
>> thought someone had posted here about using nfs with a common archive and
>> several servers running the backups but I've forgotten the details about how 
>> he
>> avoided conflicts and managed it.  Maybe this would be the place to look at
>> opensolaris with zfs's new block-level de-dup and a simpler rsync copy.
>
> ZFS sounds nice, but we have no experience with opensolaris or ZFS.

That's something that could be fixed.

> And I heard in the past that not all of ZFS's features are ready for
> production.

In the past, nothing worked on any OS.

> bit off topic:
> Right now I'm looking for a cheap storage solution that is based
> on supermicro chassis with 36 drive bays (server) or 45 drive bays
> (expansion unit) in 4 HU. Frightening, that would be 810 TB in one
> Rack (36 + 45 HDDs x 5 x 2 TB, 40 HU) with 5 servers. Only problem is
> power, cooling and.... backup.

What's generating that kind of data?  Can you make whatever it is write 
copies to 2 different places so you don't have to deal with finding the 
differences in something that size for incrementals?  Or perhaps store 
it in time-slice volumes so you know where the changes you need to back 
up each day will be?

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com




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