Tuesday May 18, 2010

The Problems Solaris Solves - 1 - Managing File Systems Effectively

Brian Leonard presents at Tech Days, Hyderabad, India, March 2010.

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filmed & edited by Deirdré Straughan

Thursday May 13, 2010

Getting Started with Solaris 10 - Part 7 - Device Names & File Systems

Brian Leonard presents at Oracle Tech Days, Hyderabad, India, March 2010

filmed & edited by Deirdré Straughan

Monday May 10, 2010

Open Storage & ZFS in a Linux World

[VIDEOS / SLIDES CURRENTLY UNAVAILABLE] 

Part 1

Don Macaskill of smugmug.com speaks at the Open Storage Summit, 2009

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Part 2

download for iPod

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Learn more: Oracle ZFS Storage Appliances

filmed by Deirdré Straughan

Sunday May 09, 2010

ZFS: The Last Word in File Systems - in Russian

Victor Latushkin (Sun Microsystems) presents at MOSUG, April 2010.

Wednesday Apr 28, 2010

Storage FMA

[VIDEO CURRENTLY UNAVAILABLE]  

download for iPod - Slides

Eric Schrock presents at the Open Storage Summit, 2009.

filmed by Deirdré Straughan

Monday Apr 26, 2010

ZFS Internal Structure

This talk explains the basic elements of the ZFS filesystem and the corresponding structures in the on-disk format. ZFS belongs to a new generation of filesystems, which are able to keep up with the pace of the developing disk subsystems and new challenges in data processing. But how does it work?

Transactions are implemented with COW; the talk explains which data structures from uberblock over the internal tree to the leaf nodes on the disk are modified during that. Some applications like databases emit a high number of synchronous writes which have to be implemented differently; ZFS keeps the integrity with the ZFS Intent Log.

The tasks of the Data Management Unit (DMU) and the Storage Pool Allocator (SPA) are explained and why ZFS is able to optimize better than traditional filesystems. The structures mantained by DMU and SPA are examined. Directories and other mappings are implemented with ZAP (ZFS Attribute Processor) and variants (micro-ZAP). It is explained how it works and where it is used. Free space in ZFS is mantained with regard to the blocks still in use by snapshots. The talk explains how this works over multiple disks. ZFS can use SSDs in the critical areas for faster log writing (aka LOGZILLA) and for fast access to frequently read data (aka READZILLA). ZFS caching algorithm ARC implements this.

A presentation at OSDEVCON 2009 by Ulrich Gräf:

TH Darmstadt (now TU Darmstadt) 1985 - 1991:

  • Graduation in Computer Science (Diplom-Informatiker) Darmstadt)
  • System Programming Group - Assistant for Computer Science base lectures
  • Implementing mail services on base of EARN for BS2000 and PCS (Unix)
  • HRZ (university computing center) implementing the services for the Internet connection of TH Darmstadt.
  • Sun Microsystems Inc: (1992 - )
    • Systems Engineer for financial services (banks, insurances, partners)
    • Benchmarking Engineer for customer application benchmarks
    • Platform Technology Team - Systems Engineer and OS Ambassador
    • Evangelizing new technologies to customers
    • Big projects
    • Enabling customers, partners
    • Technology presentations for customers, partners, communities

    NOTE, 2014: We lost Uli last year, so we are especially pleased to be able to bring back this video as at least one way to honor his contributions.

    Learn more: Oracle Solaris ZFS Technology at the Oracle Technology Network

Tuesday Mar 09, 2010

ZFS Dynamic LUN Expansion

An in-depth look with George Wilson of Oracle's ZFS team.

filmed & edited by Deirdré Straughan

Learn more: ZFS at the Oracle Technology Network

ZFS Dedup

An in-depth look with George Wilson of Oracle's ZFS team.

George references Jeff Bonwick's blog; current URL is http://blogs.oracle.com/bonwick/entry/zfs_dedup  .

filmed & edited by Deirdré Straughan

Learn more: Oracle Solaris ZFS Technology at the Oracle Technology Network

Monday Jan 25, 2010

ZFS Crypto

Cindy Swearingen interviews Darren Moffat about the ZFS Crypto project. January, 2010.

filmed & edited by Deirdré Straughan

Tuesday Dec 22, 2009

ZFS Crypto: Data Encryption for Local, NAS and SAN

Part 1

Part 2

Darren Moffat presents at the Solaris Security Summit, November 2009.

Slides

More Security Summit videos

Learn more, at the Oracle Technology Network:

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