[kwlug-disc] Video about ZFS mishap(s?)

[Colin Mackay]

This made me quickly go over my two TrueNAS systems configuration and check
on the backup.  LOL.


On Sat, Jan 29, 2022 at 10:33 PM L.D. Paniak <ldpaniak at fourpisolutions.com>
wrote:

> The only fault of ZFS is it enables one to lose data at the PB scale with
> little experience.
>
> Even minimal monitoring of the array would have helped them to avoid this
> episode.
>
> Once you are using mechanical drives of more than a handful of TB, RAIDZ3
> vdevs are something to consider. Rebuild times are long and bit error rates
> have not gone down in time.
> The ServeTheHome RAID reliability calculator is a useful tool (that might
> make you rethink your array):
>
> https://www.servethehome.com/raid-calculator/raid-reliability-calculator-simple-mttdl-model/
> On 2022-01-29 21:16, Jason Eckert wrote:
>
> I find it mind boggling that they have that much hardware, but were too
> lazy to spend time properly configuring/monitoring ZFS until it was too
> late.
>
> On Sat, Jan 29, 2022 at 9:12 PM Chris Frey <cdfrey at foursquare.net> wrote:
>
>> On Sat, Jan 29, 2022 at 08:36:43PM -0500, Mikalai Birukou via kwlug-disc
>> wrote:
>> > https://www.youtube.com/watch?v=Npu7jkJk5nM
>>
>> I don't think that has much to do with ZFS :-)
>>
>> I was slightly puzzled at their first move to remove the drives that
>> were still working but had errors.  With that many failed disks in the
>> array, wouldn't it have been a better strategy to try to get everything
>> into a good state before replacing entire drives?
>>
>> - Chris
>>
>>
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