[Lustre-discuss] Redundancy with object storage?
D. Dante Lorenso
dante at lorenso.com
Mon Dec 3 18:32:26 PST 2007
All,
I'm hoping to set up a Lustre file system using 1 MGS and 3 OST on 4
separate pieces of hardware, but I'm doing this and hoping to gain some
reliability at the same time. The problem that I see is that if any one
piece of the 4-node system fails, the whole system will fail.
Is it possible to configure Lustre to write Objects to more than 1 node
simultaneously such that I am guaranteed that if one node goes down that
all files are still accessible? This would effectively mean that I
would use 2 times the storage space for each object written and would
require that every cluster have a minimum of 2 nodes.
I understand the concepts of using DRBD and replicating block devices as
well as creating a full separate cluster for fail-over, but I'm hoping
to build redundancy into a single cluster without having to duplicate my
network with a bunch of active/passive machine combinations.
-- Dante
More information about the lustre-discuss
mailing list