NFS Problem 5300-05-05

[bennotech]

Hello All,
Got a bit of a funny one. We are nfs mounting the cd drive (cdrfs) from one system to another both running 5300-05-05 which is working. We can cd into the nfs mount on the target host but when we try to view or list the files the commands just hang (no error message etc). No such problem nfs mounting a jfs2 filesystem or mounting the same cd drive to another system running 5300-04-00.
Anyone experienced this ??
Raised a call with IBM but would like to sort out soon,
cheers
Benno

 

[p5wizard]

Can you access the files from the NFS server side?
Also check out error log on NFS server side for media errors on the cd drive.


HTH,

p5wizard

 

[bennotech]

....can access files fine on host, no errors generated. Mounted the drive on another system running 5300-04-00 and can access fine also, it only happens with the cdrfs filesystem and only when host and target systems are running 5300-05-05, weird !!

 

[bennotech]

.....IBM came up with a fix.

 

[mrn]

Which was?

Mike

"Whenever I dwell for any length of time on my own shortcomings, they gradually begin to seem mild, harmless, rather engaging little things, not at all like the staring defects in other people's characters."

 

[DukeSSD]

nfso -o nfs_v3_server_readdirplus=0

 

[DukeSSD]

No idea of the implications but I found he posted on the IBM AIX 5L forum and got the above reply.

Handy link to the man page:

http://publib.boulder.ibm.com/infoc...topic=/com.ibm.aix.cmds/doc/aixcmds4/nfso.htm

 

[bennotech]

......sorry for not getting back with the fix all :

nfso -o nfs_v3_server_readdirplus=0

....on the host with the cd.dvd drive

Benno

 

[bennotech]

Here is the APAR details and work around :

APAR is IY94222

A CDROM exported from a 5.3 TL5 NFS server to a 5.3 TL5
NFS client can not be listed with the 'ls' command after
mounting. The 'ls' command hangs with no output. Review
of an IP trace of the communication between the server
and client reveals an infinite loop of READDIRPLUS requests
from the client, requesting the same data over and over.

hope that makes sense
Benno