This article describes how to generate crash dump on unresponsive NetScaler VPX hosted on XenServer.

Instructions

For XenServer 6.0, 6.1 and 6.2

1. Run the following command on XenServer:
   # xl list-vm

   UUID                                 ID    name
   79c6d5a7-bc01-42f9-b85a-8f43acc9d79a  1    centos6.2-code_plugin-ip67
   483759f6-c0b0-f4b0-de8a-df4542fbb293  3    NS10.0-vpx-ip10.104.12.75
   570faeb7-ed59-46cb-b0f9-9279ff426403  4    NS_VPX_10.104.12.82
   38d938d0-2936-9eaf-8468-1377ada63308  5    NS_VPX_10.104.12.90
   e96c928f-b358-2994-c21e-19dcbb079d91  11    NS10.0-vpx-ip10.104.12.68
   

2. Choose the domid from the above command output and run the following command on XenServer:
   # /usr/lib/xen/bin/crash_guest  <domid>

For XenServer 6.5 and Later

1. Run the following command on XenServer:
   # xl list

   Name                                        ID   Mem VCPUs        State        Time(s)
   Domain-0                                     0   740     4     r-----  1214615.0
   172.16.190.1                                 4  4096     3     r-----  7667454.5
   Cluster1-172.16.151.150                 5  2048     2     r-----  470138.7
   Cluster2-172.16.151.160                 6  2048     2     r-----  493148.4
   172.16.190.2                                 7  4096     3     r-----  7654320.0
   NS11.0-172.16.16.10                    9  2048     2     r-----  3815198.0
   Management Service VM                       24  2048     1     -b----   64358.7
   

2. Choose the domid from the above command output and run the following command on XenServer:
   # xl trigger <domid> nmi

The crash dump files are generated under /var/crash directory of respective VM. This procedure also works on NetScaler SVM.