[kwlug-disc] Filesystems for backups

[L.D. Paniak]

raidz2 is recommended for larger drives to protect against multiple
(additional) drive failures during resilvering (rebuilding).

With older (out of warranty?) drives, I like to have extra protection
when pushing the array during resilvering.
Regular (monthly) ZFS scrubs are highly recommended - and a good way to
weed out weak drives...
Monthly scrubs are part of a default ZFS installation in Ubuntu.

On 8/8/19 4:14 AM, Paul Nijjar via kwlug-disc wrote:
> On Wed, Aug 07, 2019 at 09:57:37PM -0400, L.D. Paniak wrote:
>
>> 2) For individual drives bigger than 2TB, I think RAIDZ2 is a
>> requirement. Especially with used HDDs.
> Why this? Is raidz as opposed to raidz2 too risky because of the
> rebuild times?
>
>
>> 3) Can your drive shelf handle drives with 4K sectors?? I tend to doubt
>> it.? In that case, you will probably never use a drive >4TB in your array.
> I don't know yet. I should probably investigate.
>
>
> - Paul
>
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