4500X Problem - cannot write memory - startup-config file open failed (Device or resource busy)

[warren.sullivan]

Good Morning all,

I have a TAC case opened for this right now but I thought I would share it as TAC at this point aren't able to resolve it.

I cannot issue the write memory or copy run start command on my 4500X VSS

PRD-SWCR01#wr
startup-config file open failed (Device or resource busy)

PRD-SWCR01#

Now TAC are suggesting it's from the following bug - CSCul95289

But it doesn't present like that, there are no unused VTY lines (just me);

PRD-SWCR01#sh users
    Line       User       Host(s)              Idle       Location
*  1 vty 0     sullivw_a  idle                 00:00:00
                                                     lenovo-warren.pt.qld.gov.au

  Interface    User               Mode         Idle     Peer Address

PRD-SWCR01#

It also hangs on large output requests, like sh run, sh tech etc.

They suggested an upgrade from 03.05.00.E to 03.05.02.E but this has not resolved the issues

A reload of the system temporarily resolves the issue, but the problem generally comes back within 24 hours.

Any ideas folks?

regards

warren

[2colin-cant]

Hi Warren,

I also noticed some weird outputs also on 4500X 03.05.02.E in regards to "show redundancy"
or "show switch virtual" outputs, the formatting seems to be a little off.

On the 4500X platform I also had another weird issue that 10GE SFPs once plugged, unplugged they keep disapearing, for x amount of time, this sometimes can be 1-3 hours, in some other cases it even can take up to 12 hours until they magically re-appear, therefore plan your maintenance carefully when it comes to removing, and relocating 10GE SFPs.  1G SFPs did not seem to be affected. The 4500X's seem a bit of a problem platform to me, after having had 5 BugIDs raised within the last 8 month!

[rodericknussey]

Here's what I've experienced but not on a 4500 but a 1941W ISR....

Problem: Same - Couldn't 'Write Memory' or 'Copy running-config Startup-config'... 

Message: startup-config file open failed (Device or resource busy)

Investigation: When I did a show users, I found out that the router was holding onto old vty loging sessions...

########RTR01#sh users
Line User Host(s) Idle Location
132 vty 0 user idle 7w4d mx4.domain.com
133 vty 1 user idle 4w4d x.x.x.x
134 vty 2 user idle 3w5d mx4.domain.com
135 vty 3 user idle 3w5d x.x.x.x
136 vty 4 user idle 3w4d x.x.x.x
137 vty 5 user idle 3w2d mx4.domain.com
*138 vty 6 user idle 00:00:00 mx4.domain.com

Resolution: I cleared all of the old vty sessions and was then able to write memory...

#####RCRTR01#clear line vty 0
[confirm]
[OK]
#####RCRTR01#clear line vty 1
[confirm]
[OK]
#####RRTR01#clear line vty 2
[confirm]
[OK]
#####RTR01#clear line vty 3
[confirm]
[OK]
#####RTR01#clear line vty 4
[confirm]
[OK]

#####RTR01#clear line vty 5
[confirm]
[OK]

#####RTR01#wr
Building configuration...
[OK]

Hope this helps....