[mythtv-users] Is there a distributed filesystem available?

Steve Hodge stevehodge at gmail.com
Tue Jun 20 04:45:13 UTC 2006


On 6/20/06, Chris Henderson <jchendo at gmail.com> wrote:
> On 6/20/06, Debabrata Banerjee <davatar at comcast.net> wrote:
> > I already have several other raid arrays in my myth box for other
> purposes,
> > I am quite sure this is not what I want.
>
> OK,
>
> But i dont understand. Please exlpain. You say you want a fault tolerant
> files system, doesnt Raid 5 give you that?

RAID 5 gives you a high level of fault tolerance at the cost of
complexity and capacity. What Debabrata wants is a partially tolerant
setup, basically a file system that can span X disks, and when a disk
fails it only loses the files on the failed disk (i.e. 1/X of the data
if it were full). It's sort of in between RAID 0 and RAID 5: RAID 5
can have a single disk fail without any data loss, RAID 0 will lose
all data when a single disk fails, this hypothetical filesystem would
lose some but not all of the data if a disk fails.

Steve


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