MySQL and SSD
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This document compares the performance and pricing of solid state drives (SSDs) to traditional hard disk drives (HDDs) for use with MySQL databases. It finds that SSDs provide much faster read and write speeds but are more expensive per gigabyte than HDDs. The document recommends only using SSDs for MySQL if the database workload is input/output bound and sufficient budget is available.
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MySQL and SSD
- 1. MySQL and SSD Gea-Suan Lin [email_address] PIXNET Digital Media Corporation
- 2. Outline Introduction to MySQL and SSD SSD Spec Comparsion in Speed and Price Something interesting... Conculsion
- 3. MySQL and SSD MySQL Open source database Very popular to Web-based company SSD Solid-state drive 2006~2007 Very fast random access ( in theory ) Fit database characteristic
- 4. Conculsion First! Don't Use SSD to run database At least MySQL... Unless I/O bound Enough Budget
- 5. SSD Spec Mtron MSP 7000, MSD 3000, MSD 1000 Memoright MR25.2 RiData Ultra-S, Ultra S-Plus Transcend TS32GSSD25S-M
- 6. SSD Spec
- 7. Test in real environment Linux 2.6.18 (Debian, testing) XFS, noatime, nodiratime MySQL 5.1.{21,22,23}, MyISAM Replication (Slave) Data size: my boss said we cannot talk about real database size, so don't ask.
- 8. Test Warm up speed Write speed (Replication write) Read speed (Query)
- 9. Comparsion Mtron MSP-7000, Memoright MR25.2 RAID1+0 15KRPM SAS (4 disks) RAID0 15KRPM SAS (2 disks) Mtron MSD-3000 Mtron MSD-1000 RAID0 10KRPM SATA (2 disks) Others... (RiData and Transcend)
- 10. Something interesting... No, these won't appear in this slide.
- 11. Suggestion Again! Don't use SSD in Master server. Don't use SSD in Slave servers unless need. I/O bound that RAID cannot solve In most cases, you need to buy books to optimize your query statements, not buy SSD. In some cases, you need to reconstruct your architecture. Budget
- 12. Q&A Any Question ?