Weird NFS stuff

Weird NFS stuff

Post by Bucky Blo » Wed, 02 Sep 1992 05:11:44



I've recently had something very STRANGE happen to my 950
while using it as a NFS server. I mount a disk from my 950
running AIX 3.2 on a Sun 630. This disk contains a LARGE
amount of source code, during a build on the Sun I noticed
a large amount of RPC not responding errors, and finally I
started getting NFS write errors, at this point NFS appeared
hung.. Well, I unmounted the disk from the sun, and tried
to remount it, but it appeared screwed up, So I took a look
at the file system on the 950. The file system is /usr/iefsrc,
which is its own VG:

block on ief% df
Filesystem    Total KB    free %used   iused %iused Mounted on
....
/dev/lvtool    2048000 1185408   42%   96425    18% /usr/iefsrc
....

all the files under /usr/iefsrc appeared to be there (this level
only contains directorys) but when I changed into any directory
and did a ls I received a . not found error. This occurred for
all of the directorys under the mount point. At this point I
had to bring the machine down to maintenance mode, run fsck and
then I rebooted just to make sure, and then everything was
fine.

Has anybody seen this kind of strangeness before???

Also after the reboot I found some file with 0 size, on other
file systems (I was using xv *.gif, and after the reboot all
of the gif files had 0 size ????)

Thanks,
--


IEF Development                     |     TIMSG: BLOC
Texas Instruments, Plano Texas      |     (214) 575-4732

--


IEF Development                     |     TIMSG: BLOC
Texas Instruments, Plano Texas      |     (214) 575-4732

 
 
 

1. Weird Ping, weird FTP, weird Telnet... HELP!!!

Can anyone diagnose this for me?

I'm in the process of building up a firewall but at some stage I musta
messed up and am now getting really weird results.

This is the results of a ping from 192.168.0.1 to 192.168.0.1 (the box
which will become the fireawall).

# PING 192.168.0.1
PING 192.168.0.1 (192.168.0.1) from 192.168.0.1 : 56(84) bytes of
data.
64 bytes from 192.168.0.1: icmp_seq=0 ttl=225 time=0.7ms
64 bytes from 192.168.0.1: icmp_seq=1 ttl=225 time=80001.0ms
64 bytes from 192.168.0.1: icmp_seq=2 ttl=225 time=160000.9ms
64 bytes from 192.168.0.1: icmp_seq=3 ttl=225 time=240000.8ms
64 bytes from 192.168.0.1: icmp_seq=4 ttl=225 time=320000.8ms
64 bytes from 192.168.0.1: icmp_seq=5 ttl=225 time=400000.7ms
64 bytes from 192.168.0.1: icmp_seq=6 ttl=225 time=480000.7ms

^c

--- 192.168.0.1 ping statistics ---
509 packets transmitted, 8 packets received, 98% packet loss
round-trip min/avg/max = 0.7/280000.7/560000.6 ms

This also happens when I do it from other machines behind the firewall
but I was very surprised when it did it when pinging itself.

Theres a pattern of 80000ms increments between successful pings...
Can't figure out whats wrong though.

If I try to telnet or FTP, I have to wait for an eternity b4 the login
prompt appears after the initial "connected" msg. But once I login
there is no problem using the console or transferring files. Same
thing for other machines to 192.168.0.1. So the network is "working"
but its waiting for something.

Has anyone had this happen to them b4 and manage to solve it?

Any help appreciated

Regards,

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