MySQL and SSD

MySQL and SSD Gea-Suan Lin [email_address] PIXNET Digital Media Corporation

Outline
Introduction to MySQL and SSD
SSD Spec
Comparsion in Speed and Price
Something interesting...
Conculsion

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

Conculsion First!
Don't Use SSD to run database
At least MySQL...
Unless
I/O bound
Enough Budget

SSD Spec
Mtron
MSP 7000, MSD 3000, MSD 1000
Memoright
MR25.2
RiData
Ultra-S, Ultra S-Plus
Transcend
TS32GSSD25S-M

SSD Spec

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.

Test
Warm up speed
Write speed (Replication write)
Read speed (Query)

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)

Something interesting...
No, these won't appear in this slide.

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

Q&A
Any Question ?

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MySQL and SSD

by Gea-Suan Lin on Aug 23, 2008

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MySQL and SSD — Presentation Transcript