No vmkcore disk partition is available

[deepsecurity]

Dear Community,

I have changed my IP addresses on my ESXi 5.1 hosts and I am having some problems. I have 3 ESXi hosts and 1 storage. I am connected the storage using iscsi adapter and I store everything on that storage. The storage is a basic pc which is running FreeNas on it, nothing special.

After I change my hosts' IP and save everything, it will work fine unless I restart my host. If I restart one of the hosts, I will loose all the new changes, it will take back the old IP address. These IP addresses are static and I don't have a dhcp server in this enviroment. 4 machines are connected to a switch, that's all. This is a test lab enviroment so I can play with everything easily. I am getting a conguration issue on the hosts summary screen below.

No vmkcore disk partition is available and no network coredump server has been configured. Host core dumps cannot be saved.

System logs on host LABESXi1.LOCAL are stored on non-persistent storage.

I am not a vmware professional but I understand that there is some kind of a cache file and it cannot be saved anywhere. I can access my storage and run my VMs without any problem.

I don't even know where my previous core dump file was saved before. I have read some articles KB2002955 and KB1000328 related this but I couldn't figured them out. I think I need some hints

I've tried to setup a Network coredump using my storage but I am getting an error related the connection. I don't know how it will connect using port 6500 anyway.

Am I on the right track? Does anyone has an easier solution?

Regards.

[john23]

Have you installed ESXi on localhard disk?? During installation whether you selected harddisk or not.

-A

[deepsecurity]

Yes it's installed on the local harddisk of my host.

I didn't change anything special. Default insallation.

[john23]

Can you please post the output :

partedUtil getptbl  /vmfs/devices/disks/<local device>

-A

[deepsecurity]

/dev/disks # partedUtil getptbl  /vmfs/devices/disks/vml.0200000000300000003e17a

00f695343534920

gpt

60801 255 63 976773168

1 2048 976773119 AA31E02A400F11DB9590000C2911D1B8 vmfs 0

[john23]

Local disks partition only showing vmfs partition. No other partition are created. That's the reason your configuration setting are not persistent.

17834 255 63 286513152

1 63      2249099   131 128

2 2249100 2474009   252 0

3 2474010 286487144 5   0

5 2474073 286487144 251 0

Output should come something like this.

Check this kb for more reference: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=103660...

[Spencer_Faulkne]

Try running these two commands from a Putty session to the host.

1. esxcli system coredump partition set -u

(this resets the patition to a unconfigured status)

2. esxcli system coredump partition set -e true -s

(This sets the partition pre-existing to enabled with the smart switch to automatically enable on restart).

[balonik]

Thank you Spencer, your suggestion worked for me.

[rebers]

Perfection!