Best file system strategy
Carey F. Cox
cfcox at coes.latech.edu
Fri Nov 10 11:57:40 EST 2000
We just received our 8-node cluster and I am trying to set everything up.
Each node has:
2-550 MHz Pentium II
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.
What would be the best way to set up home directory space as well as
some kind scratch space. I should note that there is already a /share
directory that is NFS mounted on all of the nodes.
I might add that I did not spec this system out, I just inherited it.
I appreciate any and all advice that you may provide.
<> Carey F. Cox, PhD | PHONE: (318) 257-3770 <>
<> Assistant Professor | FAX: (318) 257-2306 <>
<> Dept. of Mech. Eng. | EMAIL: cfcox at coes.latech.edu <>
<> Louisiana Tech University | WEB: http://www.latech.edu/~cfcox <>
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