Re: CentOS 4.4 Strange hang on a poweredge 2900.

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Andrew Bogecho wrote:
Peter Serwe wrote:

I have a brand new poweredge 2900 with 10 SAS drives configured in two
arrays via the built-in PERC 5 raid controller as:

raid 1: 2x73GB

raid 10: 8x300GB

It's got 4GB of ram, and it's intended to be an NFS filestore.


For some strange reason, logging in with ssh works great, it returns a
prompt, all seems well.

I go to run a simple command like 'top' or 'yum -y install <package>',
and my xterm/ssh session just locks.  In some cases, it's drawn half of
the top screen and hung, in other cases, it doesn't even do that.  Kill
the xterm window, bring a new one up, right back in, try it again, it
repeats.

What's interesting to me is that I have all kinds of other 'lesser'
systems running CentOS 4.4, and I have none of these issues with them.
My ~1.1TB raid 10 drive is
sliced up into 4 parts, with the big one being about 950GB.  Near as I
can figure, I haven't hit any limitations, but I'm stumped by something
that I *think* is probably either relatively trivial, or just a straight
out hardware incompatibility.  One thought is that it could be related
to the Gb ethernet devices (bge).

Commands like 'ifconfig -a' work great.  'dmesg | grep eth0' locks up
the session.

This is relatively frustrating.  Googling doesn't seem to net any real
results, and I can't seem to find anything relevant in the logs.
One more relevant bit to add, this behavior does not exist from the
console.

Peter


Not answering your question, but I have to ask, what does ifconfig -a
do?  I man ifconfig and it does not show an -a switch.  Looked it up on the
Internet, still can't find a -a switch.


Hi,

>From the ifconfig man page:

       If no arguments are given, ifconfig displays the status of the
currently active interfaces.  If a single interface argument is
given, it displays the status of the given interface only; if a
single -a argument is given, it displays the status of all
interfaces, even those that are down.  Otherwise, it configures an
interface.

A.


It seems like this is a NIC issue or I/O of the MB.  Do you have another
NIC you can test it with?


--
Damon L. Chesser
damon@xxxxxxxxxx damon@xxxxxxxxxxxxx

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Ahhh, I figured it meant -a as in "all" but I was looking for the list of switches like:

-a --all lists all interfaces
-b  --bummer  this switch breaks everything
etc

but I did not READ the man page but neither did I see a list of switches. Figures. Thanks :)

--
Damon L. Chesser
damon@xxxxxxxxxx
damon@xxxxxxxxxxxxx

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