[Linux-cluster] Using GFS on Compact Flash

[HAWKER, Dan (external)]

> Does it make sense to use  GFS (local or cluster mode) on
> Compact Flash? Will it greatly reduce the life expectancy of
> the Compact Flash compared to using a local file system? The
> rational behind this is that GFS will issue way more writes
> to the disk for its internal operations ( such as dlm locking etc).
>

Ummm, why would you want to use CF & GFS together???

Surely you'd only use GFS for a shared pool of storage. As the largest
CF card you can sensibly get atm is around 8GB, that's not a lot of
storage to be shared by multiple nodes.

Now we use CF cards for embedded boxes, but for exactly the reasons you
mentioned (poor MTBF/reduced lifetime due to the read/write process),
our cards are invariably read-only filesystems and we use ext2 to get
rid of the journaling too. No swap either (which has caused some trouble
on one or two occasions, but that's another story).

Dan

--

Dan Hawker
Linux System Administrator
Astrium
http://www.astrium.eads.net

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