Best file system strategy
pcarns at hubcap.clemson.edu
Fri Nov 10 15:41:04 PST 2000
> We just received our 8-node cluster and I am trying to set everything up.
> Each node has:
> 2-550 MHz Pentium II
> 256Mb Ram
> 1-18Gb U2 SCSI
> Node 1 serves as the head node.
> I want to get the group's knowledgable advice on how to set up the
> user space (/home). There are nice size drives on each node, but how do
> I access them? I already have a roughly 12Gb /home partition on each
> Here are the options that I am looking at...
> 1) NFS mount node#/home to each node as /home#. Users
> would be assigned different base home directories.
> 2) Use pvfs on the /home space. I am not sure how to set
> up /home here.
> 3) If I can find the $$, purchase a new /home disk for the
> head node, use pvfs on the old /home on each node to
> create a large scratch space for running computations
> Option 1 should entail quite a heavy communication load, I would think.
> As to option 2, I am concerned with the redundancy in pvfs. If I
> understand correctly, were the system to lose a node, I have lost the
> file system. I understand I can reboot the node, but what if I lose a
> drive on a node. Is all lost in this case?
> Option 3 looks the best, but it means purchasing a new disk.
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