On Mar 1, 2014, at 4:26 PM, Chris Murphy <li...@colorremedies.com> wrote:

> 
> On Mar 1, 2014, at 2:16 PM, Matthew Miller <mat...@fedoraproject.org> wrote:
> 
>> On Fri, Feb 28, 2014 at 11:29:30PM -0700, Chris Murphy wrote:
>>> - There needs to be a mandate to remove features from custom partitioning
>>> that quite frankly don't make sense like rootfs on raid4, raid5 or
>>> raid6. OK maybe raid5. But not raid 4 or raid 6. There are other
>> 
>> Okay, I'll bite. Why not rootfs on raid6?
> 
> It's pathological. There are too many simpler, faster, more resilient options 
> considering rootfs at most isn't bigger than the average SSD: Two or three 
> SSDs + n-way mirroring. RAID 10. Or RAID 1 + linear + XFS for deterministic 
> workloads.

Those three examples are simpler, more resilient, easier to configure and 
maintain, perform better, with faster rebuild times than RAID 6 which also has 
a high read-modify-write penalty. I left that part out.


Chris Murphy

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