[mythtv-users] Recording directly to RAID

[Larry Sanderson]

On Fri, Jul 27, 2012 at 4:14 PM, Raymond Wagner <raymond at wagnerrp.com>wrote:

> On 7/27/2012 16:15, Tapani Tarvainen wrote:
>
>> I've got a 5-disk RAID10 array
>>
>
> Huh?  Are you counting a hot spare as part of the array?


I believe this is possible with the linux raid10 driver... rather than just
being a raid-0 of raid-1 devices, it instead cycles through the devices
putting down first a block, then it's mirror.  In this way, it can use an
odd # of devices (including just 3).  Check it out:
http://en.wikipedia.org/wiki/Non-standard_RAID_levels#Linux_MD_RAID_10

with five devices, it would look like:

D1 D2 D3 D4 D5
--------------
A1 A1 A2 A2 A3
A3 A4 A4 A5 A5
...


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