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
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Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone: (303) 273-3503
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Email: ycsapo@xxxxxxxxx
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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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