VMUGIT User Conference 2014 Datacentre Performance in a Shoebox - Spindles vs. Flash Chris Roeleveld and Dennis Hoegen Dijkhof

1. Datacenter Performance in a Shoebox
Spindles vs. Flash

2. Christiaan.
Ciao.
@vChrisR
Automate-IT.todayDennis.
Ciao.
@vDennisHD
Automate-IT.today

3. SPINDLE
VERSUS
FLASH
Spindle vs flash

4. SPINDLE
VERSUS
FLASH
Flash
Floating Gate
Stores
Electrons
GATE
SOURCE DRAIN
Higher voltage between
source and drain to charge
cell
Charge == Delete
Delete per Block

5. SPINDLE
VERSUS
FLASH
SLC vs. MLC
Due to different
voltage levels more
possible bits per
cell
More accurate
measurement takes
more time.Reference Points
Reference Points
11
0
1.0V 2.5V 4.0V 5.5V 6.0V
Distribution
ofCells
1.5V 3.5V 4.0V 5.5V 6.0V
Distribution
ofCells
10 01 00
1

6. SPINDLE
VERSUS
FLASH
Spindle
Seagate Enterprise Perf. 15K
Capacity: 450GB
IOPS: 180
Latency: 2000uS
Idle/load power:5.13 / 8.51 Watt
Weight: 230g
Price: 400 Euro
Flash
Intel DC S3700
Capacity: 400GB
IOPS: 36000
Latency: 65uS
Idle/load power:0.65 / 6 Watt
Weight: 73.6g
Price: 708 Euro

7. SPINDLE
VERSUS
FLASH
36000 IOPS?
1 Flash 200 Spindles
I need a
bigger
datacenter!

8. SPINDLE
VERSUS
FLASH
200 Spindles?

9. SPINDLE
VERSUS
FLASH
14903 Kwh
Power consumption

10. SPINDLE
VERSUS
FLASH
Provide power to
4,5 households for
an entire year.
Nice
neighborhood
…

11. SPINDLE
VERSUS
FLASH
72701 kilometers
In a Tesla Model S
O yeah!

12. SPINDLE
VERSUS
FLASH
200 Spindles
149003 BTU cooling
211222 cups of
coffee
Sugar and
milk?

13. SPINDLE
VERSUS
FLASH
200 Spindles
46 kilo without
enclosures
16 rack units
8x HP DL 380 * 64 VDI
= 512 desktops

14. SPINDLE
VERSUS
FLASH
200 Spindles
80.000 euro
Buy that
Tesla!

15. SPINDLE
VERSUS
FLASH
Latency
2000uS(disk) /
65uS(flash) = 30

16. SPINDLE
VERSUS
FLASH
Latency
2000uS(disk) /
65uS(flash) = 30

17. SPINDLE
VERSUS
FLASH
Latency
2000uS(disk) /
65uS(flash) = 30
Wait 10.25 minutes
for a traffic light
TEN
minutes?

18. SPINDLE
VERSUS
FLASH
Latency
65uS(flash) /
0.018uS(ram) = 3611

19. SPINDLE
VERSUS
FLASH
Latency
65uS(flash) /
0.018uS(ram) = 3611
Wait 50 days for a
traffic light
I have to
call my wife

20. SPINDLE
VERSUS
FLASH
Latency
2000uS(disk)/0.018uS(ram)=
111.111

21. SPINDLE
VERSUS
FLASH
Latency
2000uS(disk)/0.018uS(ram)=
111.111
Wait 4,2 years for a
traffic light
She doesn’t
want me to come
back home

22. SPINDLE
VERSUS
FLASH
Transport latency
Latency FC Switch:
1,1uS
Round trip = 2,2 uS
Write latency = 2x
round trip = 4,4uS
Flash: 6,77% extra
latency = 2437 IOPS
Spindle: 0,22% extra
latency = < 1 IOP
Clear!

23. Transport latency

24. SPINDLE
VERSUS
FLASH
Where to
place
the flash
disks

25. SPINDLE
VERSUS
FLASH
Capacity
1 SSD = 400GB
200 Disks = 90TB!
90TB on SSD = 225
SSDs = 159.300 euro
Enough storage
to store all
the books on
the world

26. SPINDLE
VERSUS
FLASH
Best of both worlds
Performance on local
SSD (708Euro per host)
horizontally scalable
90TB on 4TB disks = 23
disks (3082 Euro)
Total
• 3790 Euro
• 2 rack units

27. SPINDLE
VERSUS
FLASH
Caching software
Sandisk Flashsoft
FusionIO Ioturbine
PernixData FVP
• Write-back support
• Replication
• Supports vSphere
features
Check!

28. DEMO
TIME
Finally!

29. DEMO
TIME
3x Intel NUC
D54250WYB
Dual Core i5 Haswell
16GB RAM
3x NIC
Intel DC S3700 100GB
3D printed Rack
(thanks @RandomData)
Thecus NS5100 Storage

30. NAS
Setup
1x Intel NUC D34010
Dual Core i3 Haswell
16GB RAM
3x WD Black 2,5”
750GB
CentOS 6.5
3D printed Rack
(thanks @RandomData)

31. THANKS FOR
WATCHING Ciao.
Christiaan.
@vChrisR
Ciao.
Dennis.
@vDennisHD