MegaRAID Performance Tuning & Benchmark Tips

MegaRAID Benchmark Tips
January
27, 2010Benchmark Review Requirements
•
Providing
the following information will improve our ability to support product
evaluations
–
Summary of test cases
you
will
be
performing
–
System details and benchmark
parameters listed
on
slide
3
•
Questions regarding configuration and
benchmark results
should be
addressed to:
–
L
SI Technical
Support
•
support@lsi.com
–
(
For Product Evaluations)
–
C
raig McCombs
•
craig.mccombs@lsi.com
–
J
ames Evans
•
james.evans@lsi.com
LSI Proprietary
2Elements that Effect Performance
•
System
–
M
otherboard,
Chip
Set, BIOS, Processor,
Memory
•
S
ystem chip set and memory s
peed can impact benchmark performance
•
R
ecommend
8-wide (x8) PCIe
Generation-2

slot for all 6 Gb/s SAS
benchmarks
–
O
perating System with latest
Service
Pack and Updates
•
RAID controller
–
Firmware, BIOS,
driver version
–
D
isk
write cache policy
setting
–R
A
I
D
l
e
v
e
l
–
Stripe size
–
R
ead and
Write
Caching policies
•
Drives
–
T
otal
number of drives
•
N
umber of
drives per channel
–
Enclosure model
+
firmware
–
D
rive interface
(SATA, SAS) and
Speed (i.e.
1.5Gb/s,
3Gb/s,
6Gb/s)
–
M
ake and model of drive
–
Firmware version
–
C
lass of
the
drive
(e.g.,
HDD disk
drive,
SSD solid
state,
etc.)
•
Benchmark Tool
–
Test profile ( Block
Size, Sequential
R
ead or Write,
Random Read or Write)
LSI Proprietary
3





Tips
Use the latest firmware for testing the RAID ...