DRBD stands for Distributed Replicated Block Device and allows block
devices to be replicated over a network in a RAID-1 fashion. Since Linux
Kernel 2.6.33, DRBD has been accepted into mainline and with its ever
growing user base defines itself as the de facto Linux data replication
solution. DRBD acts as a block device and can be transparently inserted
underneath virtually any Linux application. Alone, DRBD's replication
can be leveraged as a robust disaster recovery solution ensuring data is
kept geographically diverse between nodes, data centers or continents.
Coupled with other Linux clustering technologies (Pacemaker, Heartbeat,
RHCS, etc.), DRBD's shared-disk semantics become the foundation of a
free, open-source high availability (HA) clustering stack used to
provide complete hardware and service level fault tolerance. From
databases to virtualization to centralized storage, DRBD and Pacemaker
provide a completely free, open-source availability and redundancy
solution using commodity, off-the-shelf hardware.
This talk will first provide an introduction to DRBD: what it does, how
it works, and some live demonstrations of replication-in-action. Basic
HA concepts will be covered as well as an overview of Pacemaker and the
Linux HA cluster stack as it relates to DRBD. To give a sense of its
flexibility, common and interesting use cases will be presented ranging
from simple, locally deployed HA clusters to geographically dispersed,
cross-site disaster recovery installations. Finally, attendees will see
how the current Open Cluster Framework (OCF) standards provide users
with a generic and easy way of integrating their own custom applications
into a highly-available environment using freely available open-source
software.
Attendees are expected to have some system administration experience
related to storage and networking. Knowledge of the Linux kernel and
other shared storage technologies is helpful, but not necessary.
More information:
About the speaker:
Adam is an expert in open-source clustering and high availability.
Originally from New England, Adam lives in Portland, OR where he has
been working at LINBIT, developers of DRBD and maintainers of Heartbeat.
Aside from providing top-level Linux High-Availability and Disaster
Recovery consulting for customers in the Americas, he also leads LINBIT
training courses in the US, doubles as a technical writer and regularly
contributes to related open-source projects. Adam enjoys his R&D work
creating new and exciting methods for DRBD integration into the fastest
growing arenas; cloud, virtualization, HPC and distributed computing
environments.
Meeting Location:
Please note that this meeting will be held at IBM, 590 Madison Ave,
12th floor, corner of 57th Street. This is
the building with the IBM logo on the front of the building.
Please note that this meeting will be held at
IBM, located at the corner of 590 Madison Ave, and 57th Street, NY, NY. You MUST RSVP for this meeting.