It is possible to use PVFS. Install the PVFS server on the OSCAR server and you
can use all the extra disk
space on each node. It can be quite significant. Of course, if one of the nodes
go down, then the PVFS
server will not function. We've been running such an OSCAR system for more than
3 years.
Regards,
ALex
________________________________
מאת: [EMAIL PROTECTED] בשם Jinsong Ouyang
נשלח: ש 02/12/2006 00:29
אל: [email protected]
נושא: [Oscar-users] To Use Disk Space on a Client node
I am using OSCAR 5.0 on Fedora 5.0 x86_64. My head node uses SCSI drives, which
are expensive to add more space. In order to add more disk space, I added a
client node which uses SATA. I just added 7 400GB drives to that node. If I am
right, I need to let all the other nodes in the cluster be able to access these
SATA drives. Do I need to start NSF daemon on this client node and then mount
all the partitions on all the other nodes? That will probably affect
performance of the cluster if I choose to do that. Actually, I tried to start
NFS service on the client node and got some error message like “unable to find
recovery directory … starting 90 seconds grace period…”
I searched mailing-lists archives and could not find an answer. The OS on each
client takes only a few GB. Suppose you have a big drive, then how can people
use the rest of the space from any node in the cluster? It seems to me that you
need to start NFS daemon on every node in order to do that.
Many thanks,
Jinsong Ouyang
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