Sent from my "It's an iPod, a Phone, and an Internet Device..."
> On Nov 11, 2014, at 3:27 PM, Dave Cottlehuber <d...@jsonified.com> wrote:
> Hey folks,
> It’s always useful to be able to point new users to how zfs benefits them, so
> here’s another one, both the flexibility of datasets, as well as relying on
> zpool scrub to ensure data integrity.
> About 2 weeks ago, my laptop blew up its GPU (6th time this year) so it was
> in for repair. This happens so often, I just switch to the nearest other
> machine and grab my latest replicated datasets for whatever project I’m
> working on while they repair it.
> However after a few strange clicks starting on Sunday, that 2nd machine
> started to have problems too. It failed to boot from OSX sometimes, and
> eventually I could only get it to work from internet recovery boot. Such fun.
> I was able to confirm my data was OK, by running zpool scrub again after
> booting via FreeBSD — mfsBSD is excellent for this. Of course, I had no
> way of knowing if the HFS+ partition used for OSX itself, was corrupt or not,
> nor knowing if the time machine backups also had silent corruption. Apple’s
> disk repair didn’t report any issues, but a 3rd party smart utility showed a
> high, and increasing, rate of failed sectors and unrecoverable reads. OSX
> still wouldn’t boot, so I booted up FreeBSD and did a final ‘zfs send’ to my
> remote server.
> I co-opted a netbook from a friend, and continued working over ssh for the
> rest of the day, while my main hardware was in for repair. replicated zfs
> datasets FTW again.
> Once the laptop hardware was repaired, recovery was as simple as pulling back
> the newer snapshots from the FreeBSD server, and I was back up and running in
> minutes. I spent more time organising the repairs than managing data recovery.
> So many many thanks to lundman, brendon, ilovezfs, Björn and others for
> keeping this ship up and running over the years.
> A+, Dave
> — sent from my Couch
> : http://mfsbsd.vx.sk/
> : my setup
> — running very recent zfsonosx builds from source
> Feb 2011 MacBook Pro 15”, dual SSD, 16GB RAM
> Jan 2013 iMac 27”, 3TB disk, 32GB RAM
> — FreeBSD 10.1-BETA3-p1 (living on the edge)
> FreeBSD 8 core server, 3TB disks, mirrored zpool, 32GB ECC RAM
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