[Linux-ha-dev] Re: Shared disk file Exclusiveness control program for HB2

[Junko IKEDA]

Hi Alan,

Thank you for your comment.
This program isn't considered as a quorum module for now.
It was developed as RA, I mean, it provides an independent function without
some effects to Heartbeat's internal behavior.

since we don't have familiar with a quorum module,
what are the requirements for it?
We have no problem with improving it, but it's not known exactly how we
should do.

Best Regards,
Junko Ikeda

NTT DATA INTELLILINK CORPORATION


> -----Original Message-----
> From: linux-ha-dev-bounces at lists.linux-ha.org
> [mailto:linux-ha-dev-bounces at lists.linux-ha.org] On Behalf Of Alan
Robertson
> Sent: Wednesday, August 08, 2007 1:12 PM
> To: NAKAHIRA Kazutomo
> Cc: linux-ha-dev at lists.linux-ha.org
> Subject: [Linux-ha-dev] Re: Shared disk file Exclusiveness control program
for
> HB2
> 
> NAKAHIRA Kazutomo wrote:
> > Hello, all.
> >
> > We wrote a Shared Disk File EXclusiveness Control Program, called
> > "SF-EX" for short, could prevent a destruction of data on
> > shared disk file system due to Split-Brain.
> >
> > This program consists of CUI commands written in the C and RA,
> > the former is used for managing and monitoring shared disk status
> > and the latter is the same as other common RAs.
> >
> > We tested this program on IBM and HP platform, and we confirmed
> > all functions worked well.
> >
> > Our test environment is listed below:
> >  Software:
> >   OS :RHEL4 ES Update5(kernel2.6.9-55.ELsmp)
> >   HB2:heartbeat-2.1.2-2
> >
> >  Hardware:
> >   IBM platform:
> >    Server     : System x3650
> >    Shared disk: DS 4700 (FC)
> >
> >   HP platform:
> >    Server     : DL380G5
> >    Shared disk: MSA500G2 (SCSI)
> >
> > How to install and configuration are described in README.
> > If you are interested in this program, please try it and
> > let me know your comments.
> >
> > Your suggestions on how to improve are really appreciated.
> 
> This program would be even more useful if it were available as a quorum
> module.  Have you thought about making it a quorum module?
> 
> 	Thanks!
> 
> 
> --
>     Alan Robertson <alanr at unix.sh>
> 
> "Openness is the foundation and preservative of friendship...  Let me
> claim from you at all times your undisguised opinions." - William
> Wilberforce
> _______________________________________________________
> Linux-HA-Dev: Linux-HA-Dev at lists.linux-ha.org
> http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev
> Home Page: http://linux-ha.org/