[Lustre-discuss] lustre and multi path

[Brock Palen]

This would be for the MDS/MGS only, but thats good to know.  Problem  
is our two MDS servers (active/passive) will have two connections  
each to the same lun, so there could be issues.

Brock Palen
www.umich.edu/~brockp
Center for Advanced Computing
brockp at umich.edu
(734)936-1985



On Jun 5, 2008, at 7:52 PM, Klaus Steden wrote:
>
> Hi Brock,
>
> I've got a Sun StorageTek array hooked up to one of our clusters,  
> and I'm
> using labels instead of multi-pathing. We've got it hooked up in a  
> similar
> fashion as Stuart; it's a bit "slow and sloppy" when initializing,  
> but it
> works well enough and there are no problems once OSTs are online.
>
> Klaus
>
> On 6/5/08 3:57 PM, "Brock Palen" <brockp at umich.edu>did etch on stone
> tablets:
>
>> Our new lustre hardware arrived from sun today.  Looking at the duel
>> MDS and FC disk array for it.  We will need multipath.
>> Has anyone ever used multipath with lustre?  Is there any issues?  If
>> we set up regular multipath via LVM lustre won't care as far as I can
>> tell and browsing archives.
>>
>> What about multipath without LVM?  Our StorageTek array has dual
>> controllers with dual ports going to dual port FC cards in the
>> MDS's.  Each MDS has a connection to both controllers so we will need
>> multipath to get any advantage to this.
>>
>> Comments?
>>
>>
>> Brock Palen
>> www.umich.edu/~brockp
>> Center for Advanced Computing
>> brockp at umich.edu
>> (734)936-1985
>>
>>
>>
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>
>
>