Vmi Ppt Final

8/8/2019 Vmi Ppt Final

http://slidepdf.com/reader/full/vmi-ppt-final 1/13

Virtualization Management Index2010 Year End Report



Available Data

• Hosts

• VMs

• Clusters

• Resource Pools

• Storage (allocated, attached)• Memory (allocated, available)

• CPU (allocated, available)

• Power On, Power Off VMs

• Cores, Sockets, vCPU

• VMs with performance problems – CPU, memory, storage,

latency

• VMs under utilized – CPU, memory, storage

VKernel Confidential



Analysis Drawn from 578,000 Virtual Machines


Average Size: 225 VMsAverage Hosts: 18Average VM/Host: 15.72500 unique environments

578,000 VMs>50 VMs to be includedFree tools source anonymous data



Running on Dual Socket, Quad Core

• Sockets per host: 2.4

• Cores per socket: 3.6

• Storage per host: 1.8TB

• Memory per host: 50 GB

• Average core speed is 2.6 GHZ




Hardware Gains Have Really Driven

Consolidation Advances

• Average:• VMs/vCPU is .9

• CPU/core is 2.2

• Current sharing is only about 2

VMs/core• More cores/host to drive

compression vs. proactively

driving out costs

• Virtualization providesmainframe like efficiency yet we

are stuck in physical world

capacity planningVKernel Confidential



Memory is the Limiting Resource


0.7 Average Over Commit Memory2.2 Average Over Commit CPU



Balancing High Density Memory Cost Vs. Fewer

CPUs

• Enterprises are still CPU rich but memory starved

• Cost of higher density memory causing sticker shock

• Efficiency point - higher cost for memory balanced

against:

• Lower power costs for fewer CPUs

• Lower software licensing costs

• Lower datacenter costs for fewer servers




Finding High Density Environments

• Start 2563 environments

• Memory allocation >= 1.0

• 236 remaining

• CPU allocation >= 1.0

• 235 remaining

• Zero VM performance issues

• 95 remaining or top 3.7% of sample




High Density Environments Have Higher

Density Memory Allocation


Metric High Density Average

VMs/Host 25.5 15.6

VMs/vCPU 1.1 .93

vCPU/Core 3.3 2.17

CPU Allocation Ratio 3.3 2.18Memory Allocation Ratio 1.2 .66

CPU and Memory Bottlenecks 0% .3%

• High density introduces own set of problems around failover• 1.2 memory allocation problematic in failover unless utilization is low• Understanding utilization next step• Significant savings for higher density



High Density 50% Cost Advantage


High Density Average

VMs/Host 25.5 15.6

Hosts Req (100vms) 4 6

Server Capex 10,000 10,000

Three Year Opex 15,000 15,000

Capex and Opex 100,000 150,000

Three Year VM Cost $1,000/VM $1,500/VM

Cost Advantage 50% 0%



All Good Analysis Asks More Questions than it

Answers

• Optimal memory density for a server that maximizes

ROI

• Are VMware functions that compress memory and do

other memory saving features useful if enterprises

don’t over allocate?• How to break through 2 VMs/core barrier




Environment Statistics Round Up


Environment

Statistics

Average Median Max

Hosts 18.1 11.4 177.2

Clusters 3.7 2.0 50.8

Data Stores 53.5 33.2 1308

Total VMs 225.6 142.0 2,955Sockets 43.1 26.0 510

Cores 153.3 92.5 2,058

Memory (GB) 897 496 14.9 PB

Storage(TB) 28 16.8 525



Per VM and Per Host Statistics


Per VM, Per Host Average Median Max

VMs/ Host 15.7 13.0 200

VMs/Core 1.9 1.6 17.5

Sockets/Host 2.4 2.0 8.0

Cores/Socket 3.6 4.0 7.0

Memory/Host 50.0 41.4Storage/VM 85.5 65.1

Storage/Host 1.8 TB 1.4 TB 25.6 TB

Memory/VM (GB) 4.0 3.4 28.5

Hosts/Cluster 5.7 4.0

Vmi Ppt Final

Documents

Transcript of Vmi Ppt Final