Why SSDs are
 Awesome
 WordCamp NYC 2009
  Barry Abrahamson
Me

• Systems Wrangler at Automattic
• Sysadmin, systems architect, DBA
• Used to live in NYC, now live in Ft. Worth,
  Te...
WordPress.com

• Over 9 million blogs and 11 million users
• 50+ million page views/day
• 1.2 billion queries/day just for...
Queries per hour
Before
• 4 x 15k RPM
  SAS drives
• RAID 0
• RAID
  Controller
  with BBWC
• $1200
Road to SSDs
• January 2008 - Mtron experiment (FAIL)
• April 2009 - Intel experiment (SUCCESS)
 • May 1, 2009 - Productio...
After
• 1 x Intel X25-M
  SSD 80GB
• No RAID
  controller
• $300
                        http://www.flickr.com/photos/xuoan...
Awesome

• 75% cheaper than fast HDDs + RAID
  controller
• 6x real-world performance/capacity
  improvement
• Reliability...
Less than Awesome
• Saves money and your user’s time, but likely
  not your (sysadmin’s) time
• Lots of research, tweaking...
Contact me!


•   barry [ at ] automattic [dot ] com
•      http://barry.wordpress.com
Questions!
(about whatever you want to ask)
SSDs are Awesome
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SSDs are Awesome

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SSD Presentation from WordCamp NYC 2009

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Transcript of "SSDs are Awesome"

  1. 1. Why SSDs are Awesome WordCamp NYC 2009 Barry Abrahamson
  2. 2. Me • Systems Wrangler at Automattic • Sysadmin, systems architect, DBA • Used to live in NYC, now live in Ft. Worth, Texas
  3. 3. WordPress.com • Over 9 million blogs and 11 million users • 50+ million page views/day • 1.2 billion queries/day just for post and comment data • 300+ database servers
  4. 4. Queries per hour
  5. 5. Before • 4 x 15k RPM SAS drives • RAID 0 • RAID Controller with BBWC • $1200
  6. 6. Road to SSDs • January 2008 - Mtron experiment (FAIL) • April 2009 - Intel experiment (SUCCESS) • May 1, 2009 - Production deployment • May 15, 2009 - Critical bug found • May 30, 2009 - Start over w/ prod deploy • July 2, 2009 - Migrations complete!
  7. 7. After • 1 x Intel X25-M SSD 80GB • No RAID controller • $300 http://www.flickr.com/photos/xuoan-dailies/3235208908/
  8. 8. Awesome • 75% cheaper than fast HDDs + RAID controller • 6x real-world performance/capacity improvement • Reliability: 150+ drives in production for 6+ months, only 1 failure.
  9. 9. Less than Awesome • Saves money and your user’s time, but likely not your (sysadmin’s) time • Lots of research, tweaking, benchmarking, hacking necessary to achieve maximum performance • Most software is designed to reduce disk seeks
  10. 10. Contact me! • barry [ at ] automattic [dot ] com • http://barry.wordpress.com
  11. 11. Questions! (about whatever you want to ask)
  1. ¿Le ha llamado la atención una diapositiva en particular?

    Recortar diapositivas es una manera útil de recopilar información importante para consultarla más tarde.

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