Re: re-export NFS mounted disk to be NFS mounted?
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Thanks Yuri,Other than NFS, what else can I do, I heard a lot about NFS's performance, but I just don't know an alternative yet (AFP doesn't work that well on a server as what I read from mail lists, and from trying).
Guess I will go to local disk solution. CY On Mar 23, 2009, at 12:15 PM, Yuri Csapo wrote:
AFAIK that is not possible on Linux with the stock kernel nfs server. It *should* be possible with the userspace server, but I'm not sure it's supported. Maybe someone who has actually done it (as opposed to playing with it) should comment.OTOH it doesn't seem like a good idea anyway... NFS's performance is really bad and what you're doing will multiply bad x 2. I know sometimes you need to work with what you have but if your cluster is in any way I/O sensitive you should think about getting some local disk space for it, at least.Yu Chen wrote:Hello,I have a cluster, the disk space is on a Xserver, it's NFS exported, and mounted on the cluster's head node without problem (mounted on /mnt/nfs), then I exported the "/mnt/nfs" directory, then tried to mount it on the nodes in the cluster (mount -t nfs headnode:/mnt/nfs /mnt/tmp), it gave error: mount ... failed, reason given by server: Permission denied. my Xserver nfs exports entry has this: /Volumes/DataRAID -alldirs - maproot=nobody -sec=sys -network my.headnode.network -mask 255.255.255.0 my headnode mounted /Volumes/DataRAID on /mnt/nfs then exported as nfs exports entry:/mnt/nfs 10.0.0.0/255.255.255.0(rw,sync) Anybody has any suggestions? Thanks in advance. CY --To unsubscribe from this list: send the line "unsubscribe linux- admin" inthe body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html-- Yuri Csapo Academic Computing & Networking Colorado School of Mines CT-256 Phone: (303) 273-3503 Fax: (303) 273-3475 Email: ycsapo@xxxxxxxxx Please use the following link to open a service request: http://helpdesk.mines.edu =========================================== With a PC, I always felt limited by the software available. On Unix, I am limited only by my knowledge. --Peter J. Schoenster
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