NYC LOCAL: Wednesday 24 September 2008 NYLUG: Subhendu Ghosh on Linux Kernel Management with Kexec and Kdump

[secretary]

<blockquote
  what="official NYLUG announcement"
  edits="">

 From: NYLUG Announcements <info@nylug.org>
 To: NYLUG Announcements <nylug-announce@nylug.org>
 Date: Tue, 23 Sep 2008 09:30:01 -0400 (EDT)
 Subject: [nylug-announce] TOMORROW! NYLUG September 24 Meeting: Subhendu
        Ghosh on Kdump/Kexec 6:00-8:00PM

 REMINDER: This meeting is tomorrow, RSVP closes TOMORROW
 Visit http://rsvp.nylug.org to see if RSVP is still open.

 Wednesday, September 24, 2008
 6:30pm-8:00 PM
 IBM
 590 Madison Ave, 12th Floor
 corner of 57th Street

 ** RSVP Closes at 4:30pm the day of the meeting (sharp!) ***
 Please RSVP for EVERY meeting at this time.
 Register at http://rsvp.nylug.org/
 Check in with photo ID at the lobby for badge.

       
                        Subhendu Ghosh of Red Hat
                                - on -
                Kexec/Kdump: Managing Linux Crash Dumps

   For a long time, Linux did not have a standard mechanism for capturing
   crash dumps.  Different distributions included different techniques.
   In the 2.6 kernels we finally have a common method for managing crash
   dumps using kexec and kdump.  This talk will describe the technologies
   involved and how to configure and manage a production environment to
   capture vmcores.

   Kdump is a new kernel crash dumping mechanism and is very reliable
   because crash dump is captured from the context of a freshly booted
   kernel and not from the context of the crashed kernel.  Kdump uses
   kexec to boot into a second kernel whenever the system crashes.  This
   second kernel, often called the capture kernel, boots with very little
   memory and captures the dump image.  The first kernel reserves a
   section of memory that the second kernel uses to boot.  Kexec enables
   booting the capture kernel without going through the BIOS hence
   contents of first kernel's memory are preserved, which is essentially
   the kernel crash dump.

 About Subhendu Ghosh:
   Subhendu Ghosh is currently a Sr. Solutions Architect with Red Hat and
   has been involved in Open Source for a while, including as Project
   Admin for Nagios-Plugins.  Prior to Red Hat, Subhendu Worked at Qwest
   Communications and AT&T amongst other companies.  He previously
   presented to NYLUG in April 2008 on the Cobbler Provisioning System.

 Meeting Location:
   Please note that this meeting will be held at IBM, 590 Madison Ave,
   12th floor, corner of 57th Street, and not at Google.  This is
   the building with the IBM logo on the front of the building.

 More Information:
   * Kdump/Kexec:  http://lse.sourceforge.net/kdump/

 Map:
   http://tighturl.com/m

 Books!!!
   Our friends at Prentice-Hall kindly provide us with review copies
   of various new titles.  One of these could be yours, all you have
   to do is agree to review the book within a reasonable period of
   time.

 Swag (Give Away):
   During/after the meeting... unusually terrific swag may be given
   away.

 Stammtisch:
   After the meeting ... You may wish to join up with other NYLUGgers
   over at TGI Fridays located at 677 Lexington Avenue and 56th
   Street, second floor. Northeast corner.

 Python Workshops:
   We are rounding up a group that wants to learn Python.  This would
   be a great time to attend our workshop.

   The workshops meet every other Tuesday, at the NY Public Library,
   Hudson Park Branch.  66 Leroy St. NY NY from 6:00 PM - 8:00 PM
   Next meetings are September 30th followed by October 14th.
   See the calendar at: http://tighturl.com/fp

 Please see our home page at http://www.nylug.org for the HTMLized
 version of this announcement, our archives, and a lot of other good
 stuff.
 ______________________________________________________________________
 Hire expert Linux talent by posting jobs here :: http://jobs.nylug.org
 nylug-announce mailing list nylug-announce@nylug.org
 http://nylug.org/mailman/listinfo/nylug-announce
  
</blockquote>


Distributed poC TINC:

Jay Sulzberger <secretary@lxny.org>
Corresponding Secretary LXNY
LXNY is New York's Free Computing Organization.
http://www.lxny.org