Re: [BackupPC-users] OT: New backup server with 6TB disk space

>-----Original Message-----
>From: Les Mikesell [mailto:lesmikesell AT gmail DOT com]
>Sent: Friday, January 14, 2011 2:53 PM
>To: backuppc-users AT lists.sourceforge DOT net
>Subject: Re: [BackupPC-users] OT: New backup server with 6TB disk space
>
>>> Is there a lot of block-level duplication among these?  If so it might
>>> be worth setting up something with zfs.
>>
>> How can I tell?
>
>Ask someone who creates the large data sets if they copy any or all of it
from
>something that already exists.  Backuppc will not pool data if there is one
byte
>of difference in a huge file, where block level de-dup in the filesystem
would
>use space for unique blocks.  If everyone is working with slightly
different
>versions of the same data, you could easily save enough space to run a raid
>level that would protect against a disk failure.

Ah, ok. Got it. Each user creates his or hers own datasets, which differ.
Only rarely they start from the same starting-points. Unfortunately... 8-/


>>>Any particular reason I should look into Nexentastor? The Zfs?
>
>Nexentastor gives you a web admin interface so you don't need to know much
about
>the underlying OS (which is opensolaris) or how to configure zfs.  If you
have
>new hardware it's pretty easy to drop in and test.  You could even run it
as an
>nfs server with the backuppc system running on something else. Otherwise if
you
>can wait another month or so, I'd wait for CentOS6 and use xfs. Actually
you'll
>probably want the OS on its own separate small partition(s) anyway so it
doesn't
>matter that much - but I think RHEL6 (and thus eventually CentOS6) is
supposed
>to install on xfs as an option.

Isn't Opensolaris dead now?

I might try it - Nexentastore - out anyway, but planning to run CentOS 5.6
or 6 when either's released. I'm kinda' hoping CentOS 6 is worthwhile,
especially with the new filesystems available. 
        I tried the RHEL6 beta a while ago, and was less than impressed that
the installer for some reason nuked the dual-boot Windows-partitions w/o
asking on the test-box I had available at the time. 8-/
-- 
/Sorin

smime.p7s
Description: S/MIME cryptographic signature

------------------------------------------------------------------------------
Protect Your Site and Customers from Malware Attacks
Learn about various malware tactics and how to avoid them. Understand 
malware threats, the impact they can have on your business, and how you 
can protect your company and customers by using code signing.
http://p.sf.net/sfu/oracle-sfdevnl

_______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List:    https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki:    http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/