[Pacemaker] fencing best practices for virtual environments

2012-09-09 Thread Alberto Menichetti
Hi all, I'm setting up a two-node pacemaker cluster (SLES-HA Extension) on vmware vsphere 5. I've successfully configured and tested the stonith plugin external/vcenter; but this plugin introduces a single point of failure in my cluster infrastructure because it depends on the availability of

Re: [Pacemaker] about iTCO_wdt watchdog

2012-09-09 Thread Vadym Chepkov
On Aug 2, 2012, at 4:06 AM, Mia Lueng wrote: you misunderstand me. I just simulate a system crash to test if the watchdog can reboot the system . All kernel wdt modules still rely on a functioning kernel. But you crashed kernel at this point, so no one will reboot your system. What I think

[Pacemaker] using op_defaults to change default operation failure action?

2012-09-09 Thread Nenad Opsenica
Hi everybody, Is it possible to use op_defaults to specify default failure action for specific operation? I'm particulary interested in specifying action if stop fails, it should not get node fenced but further actions blocked. I was googling for hours, and didn't manage to find any 100%

Re: [Pacemaker] about iTCO_wdt watchdog

2012-09-09 Thread Lars Marowsky-Bree
On 2012-09-09T09:44:12, Vadym Chepkov vchep...@gmail.com wrote: you misunderstand me. I just simulate a system crash to test if the watchdog can reboot the system . All kernel wdt modules still rely on a functioning kernel. Actually, no, except for softdog, they do not. TCO_wdt *is* a

Re: [Pacemaker] fencing best practices for virtual environments

2012-09-09 Thread Lars Marowsky-Bree
On 2012-09-09T13:30:36, Alberto Menichetti albmeniche...@tai.it wrote: I've successfully configured and tested the stonith plugin external/vcenter; but this plugin introduces a single point of failure in my cluster infrastructure because it depends on the availability of the virtual center

Re: [Pacemaker] CRM CLI guide gone?

2012-09-09 Thread Andrew Beekhof
On Fri, Sep 7, 2012 at 6:49 AM, Andreas Ntaflos d...@pseudoterminal.org wrote: It seems the CRM CLI guide formally found under http://www.clusterlabs.org/doc/crm_cli.html is gone (404). Why so? Has it moved somewhere else? Yes. The shell has its own project and is hosting its own

[Pacemaker] Clustered LVM in failover cluster

2012-09-09 Thread David Morton
Not directly Pacemaker related but a simple question for those who manage clusters ... I'm recreating our failover cluster on a new SAN which will use cLVM and XFS, I am after some clarification that the --clustered y directive is the correct and appropriate way to create the volume groups as the

Re: [Pacemaker] fencing best practices for virtual environments

2012-09-09 Thread renayama19661014
Hi Alberto, I think that I should set plural external/vcenter if your problem is practice of stonith when vcenter falls and is not usable. Please refer to the next email and patch. * http://www.gossamer-threads.com/lists/linuxha/dev/78702 Best Regards, Hideo Yamauchi. --- On Sun, 2012/9/9,