Well, Thank You Larry! You provide yet another real-life example that you and others can bring to their management as a justification to attend SHARE.
At SHARE in Seattle on March 9, 2006 Steffen Thoss of IBM in Germany presented Session 9241 "Linux on zSeries - What to do when there is a problem".
I needed to take a VMDUMP on our POC guest last week, and referred to the handout for instructions. SHARE members can logon to the web site for the proceedings at: http://shareew.prod.web.sba.com/proceedingmod/abstract.cfm?abstract_id=12308
Basically, regarding dumps Steffen related:
---<snip>---
• Create dump
#cp vmdump
• System stops only for dump process!
• IPL CMS:
#cp i cms
• Receive dump from reader:
dumpload
• Upload dump from CMS disk to Linux guest
• Put to Linux (z/VM ftp client: bin, locsite fix 80)
• Get from z/VM (Linux ftp client: bin, quote site fix 80)
• Convert dump created with vmdump to Linux dump format with Linux command vmconvert
Then it presented the example from a Linux guest:
t2930036:~/dump # vmconvert -f dump_vmdump_format -o
dump_linux_format
vmdump information:
architecture: 64 bit
date........: Fri Jan 13 16:24:37 2006
storage.....: 1024 MB
cpus........: 2
1024 of 1024 |
##################################################| 100%
'dump_linux_format' has been written successfully.
---<snip>---
Alternatively, he suggested just doing it from the Linux guest itself (which must have a DUMP device prepared ahead of time):
---<snip>---
• Prepare dump device in Linux, if possible on 64Bit environment:
zipl -d /dev/<dasd>
• After Linux crash issue the following commands in 3270 console:
#cp cpu all stop
#cp store status
#cp i <dasd_cuu>
• Wait until dump is saved on device: disabled wait appears
• Attach dump device to a Linux guest with dump tools installed
• Store dump to Linux filesystem from dump device:
zgetdump /dev/<dasd> > dump_file
---<snip>---
I have not actually loaded the VMDUMP yet. Let me know how it goes. And... fight hard to join SHARE! :-)
Mike Walter
Hewitt Associates
The opinions expressed herein are mine alone, not my employer's.
| "Larry Macioce"
<[EMAIL PROTECTED]>
Sent by: "The IBM z/VM Operating System" <[email protected]> 03/21/2006 01:28 PM
|
|
OK. Who has used the vmdump to dump a linux guest then done a dumpload??
How in the world to you get the file down to linux to do the convert??
We have a guest haging EVERY morning and the deverlopers tired to blame V
M
but when I told them I could do things to the guest through VM and opened
a
pmr and IBM said VM was fine they went on to blame linux . Now it is only
1
of 8 guests having problems but they are still blaming the linux os. So
I've done vmdump and then the dumpload(by the way my 'd' disk is full an
d
I've tried every command that looks like it might work and a few that
didn't look like what I needed, but tired them anyway to get rid of the
dumpfile on 'd' so how's that done also..but I digress) but how do I get
hte file to linux to do the convert??
thanks
Mace
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