[PVFS-users] IOD Status

[Ibrahim Haddad (LMC)]

Hello all,

Thanks for all your replies. I solved the problem.
It was 2-fold. 
1. /pvfs_data was not owned by nobody.
2. I had a switch configuration problem for my ethx ports. Some 
   CPUs were not able to see the IO nodes. It was fixed just now.

Many thanks.
Greetings from Montreal
--
Ibrahim Haddad 
Systems Research (/UU)



-----Original Message-----
From: Robert Ross [mailto:rross@mcs.anl.gov]
Sent: Wednesday, October 04, 2000 11:06 AM
To: Ibrahim Haddad (LMC)
Cc: 'pvfs-users@beowulf-underground.org'
Subject: RE: [PVFS-users] IOD Status


Ok.

The iod is performing a test during startup to see if it can in fact store
files in the directory that you have specified for it.  It is failing that
test, saying that it doesn't have permission to write.

You should look at the file /etc/iod.conf.  It may be empty; that's ok.
If there is not a datadir specified, the iod is trying to write into
/pvfs_data.

By default the iod changes its user id to "nobody" before running as a
security precaution.  In order for it to write to this directory then,
the user "nobody" must be able to write to it.  The best way to accomplish
this is to:

chown nobody <dir>
chmod 700 <dir>

This should fix this problem.

Rob
---
Rob Ross, Mathematics and Computer Science Division, Argonne National Lab


On Wed, 4 Oct 2000, Ibrahim Haddad (LMC) wrote:

> 
> The Log files say:
> 
> cannot open files in working directory: Permission Denied
> startup failed: exiting.