[Lustre-discuss] HAMMER

[Mag Gam]

Well, I guess I was intrigued by the replication portion of HAMMER. I
suppose SNS will take care of this for us...



On Sat, Aug 23, 2008 at 10:28 AM, Troy Benjegerdes <hozer at hozed.org> wrote:
> On Sat, Aug 23, 2008 at 05:51:36PM +0400, Nikita Danilov wrote:
>> Mag Gam writes:
>>  > Looks like there is another parallel filesystem similar to Lustre
>>  > called "HAMMER".
>>  > http://kerneltrap.org/DragonFlyBSD/HAMMER_Filesystem_Design
>>
>> Hello,
>>
>>  >
>>  > Has anyone heard about this? The architecture  seems very similar to Lustre.
>>
>> while HAMMER design is very interesting and it looks M. Dillon plans to
>> ultimately use it as a part of his single-image Dragonfly clustering,
>> it's a local file system, and as such cannot be fairly compared to
>> Lustre.
>
> I start feeling like an old geezer when I hear about a new filesystem of
> the day. Let's compare this once there's at least 1 top500 machine
> running hammer. What I really want to know is what happens to a hammer
> filesystem when a node starts randomly corrupting memory. Instant
> multi-master corruption replication!!
>
> The issues Hammer seems to try to solve in clustering seem to be a lot of the same
> issues I decided to try running AFS as the root filesystem.
> But It's not a parallel network filesystem.
>