I agree with Lauro:
Redundancy != Backup
Except in special cases such as an HPC cluster where result data can be
huge and difficult to backup but the data can be recomputed without much
fuss if it is lost, you need backups. Even in the case you decide you
don't need them then everyone who uses/owns/creates the data much be
made aware of the risk. Some HPC centers tell their users outright that
they don't back up and their users are on their own.
Jeff White - Linux/Unix Systems Engineer
University of Pittsburgh - CSSD
On 02/17/2012 11:55 AM, John Lauro wrote:
Just a warning about not doing backups because things are so reliable...
Due to all the redundancy, I don't recall the last time I used a backup
for a hardware failure. That said, I do need them for user error...
Unless those two copies of the data are protected from each other and not
replicated instantly... a user error will mess up both copies as quickly
as one.
-----Original Message-----
From: [email protected] [mailto:gluster-users-
[email protected]] On Behalf Of Nathan Stratton
Sent: Friday, February 17, 2012 10:45 AM
To: Matty
Cc: [email protected]
Subject: Re: [Gluster-users]>1PB
On Fri, 17 Feb 2012, Matty wrote:
How are folks backing up large amounts of data in their gluster file
systems? Replication? Snapshots and archival? As file systems grow to
1PB the conventional backup to disk / tape methodology needs to
change. We are putting a lot of thought into this subject here.
At lest on our end, we don't have backups.... We just make sure we have
2
copies of the data on RAID6 hardware.
<>
Nathan Stratton CTO, BlinkMind, Inc.
nathan at robotics.net nathan at blinkmind.com
http://www.robotics.net http://www.blinkmind.com
- Ryan
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