[NCLUG] Installing ubuntu 12.04 to ZFS root directory

[Jesse Griffin]

Zak is referring to the notes here for sending and receiving:
http://docs.oracle.com/cd/E19253-01/819-5461/gbinw/index.html.  This is a great
feature of ZFS.  Using FreeNAS as a backup "server" is a great way to go, and it
will receive your snapshot streams happily.

A package that simplifies that would be cool, Zak.  Note that PC-BSD's life
perserver (https://github.com/pcbsd/pcbsd-projects/tree/master/life-preserver)
can do some pretty handy things for desktop backup (including the zfs
send/receive if I'm not mistaken).

Thank you,
Jesse Griffin
tummy.com, ltd.

On 08/22/2013 11:57 AM, Zak Smith wrote:
> I believe the following commands would give a relevent status report
> on the pools:
> 
> zpool status -x
> zpool status
> 
> (from this guide
> http://docs.oracle.com/cd/E19082-01/817-2271/gbbuw/index.html )
> 
> Combined with running weekly zfs scrubs and smartd, the latter of
> which will report SMART status per /etc/smartd.conf, you should stay
> apprised of impending problems.
> 
> Just a note on the redundancy- I would rather have two physically
> separate machines (one primary, one backup) with less drive redundancy
> per machine and regular (daily or hourly) checkpoints between them
> than extra extra redundancy inside my primary working machine and no
> secondary machine backup. 
> 
> I did work up a set of scripts that send the incremental checkpoint
> data from ZFS to a remote ZFS filesystem.  I plan to package it up
> with an explanation and post it one of these days.
> 
> 
> 
> On Thu, Aug 22, 2013 at 08:15:52AM -0600, Jesse Griffin wrote:
>> Of course, I agreed with your crazy assessment out of jest.
>>
>> You are correct that any 2 drives in your 4 drive RAIDZ2 could fail and you
>> would be okay.  Your mathematical calculations are interesting.
>>
>> I always endeavor to have a spare drive for any RAID setup that I have, so that
>> I can address a failed drive as soon as possible.  A CRON or some sort of
>> monitoring system can ensure that you are made aware of zpool problems right
>> away too.
>>
>> You do have backups of your /home partition on a completely different filesystem
>> and/or computer, right?
> 
> 
> 
> --
> # Zak Smith    mobile 970-232-4468
> 
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