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On Mon, Jun 24, 2013 at 11:47 AM, Volker Armin Hemmann |
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<volkerarmin@××××××××××.com> wrote: |
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> Am 20.06.2013 22:45, schrieb Mark Knecht: |
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>> On Thu, Jun 20, 2013 at 12:16 PM, Volker Armin Hemmann |
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>> <volkerarmin@××××××××××.com> wrote: |
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>> <SNIP> |
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>>> man mkfs.xfs |
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>>> |
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>>> man mkfs.ext4 |
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>>> |
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>>> look for stripe size etc. |
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>>> |
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>>> Have fun. |
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>>> |
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>> Volker, |
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>> I find way down at the bottom of the RAID setup page that they do |
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>> say stride & stripe are important for RAID4 & RAID5, but remain |
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>> non-committal for RAID6. |
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> |
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> raid 6 is just raid5 with additional parity. So stripe size is not less |
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> important. |
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> |
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Yeah, as I continued to study that became more apparent. The Linux |
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RAID wiki not saying about it was (apparently) just an oversight on |
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their part. |
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At this point I'm basically getting set up to tear my whole machine |
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apart and rebuild it from scratch. When I do I'm benchmark whatever |
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RAID options I think will meet my long term needs and then report back |
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anything I find. |
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Personally, I think that RAID6 should be just slightly slower than |
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RAID5, and use slightly more CPU power doing it. How RAID5/6 really |
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compare with RAID1 isn't really that much of an issue for me as using |
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only RAID1 won't give me enough storage using any combinations of my 5 |
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500GB drives. |
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I think if I was into spending some money I'd look at buying a second |
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SSD and do RAID1 for my / and then just use the disks for the VMs & |
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video, but don't see that as an option right now. |
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Cheers, |
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Mark |
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