changing the economics of flash storage delivering flash ... · 4/21/2014 · enterprise storage...
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Changing the economics of flash storage Delivering flash at the price of disk
Mike Davis Director of Marketing SNIA DSI Conference April 21, 2014
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Virtualizat ion is increasing the demand for random I/O with the “mixer effect”
Flash economics are driving rapid adoption Pent- up demand for improving application performance at the right price point Flash prices falling faster than HDDs but st ill
considerably higher than 15K HDDs
15K HDD
$/G
B Flash SSD
7.2K HDD
New form factors: PCIe cards, appliances, shared storage
Mult i- core processors drive up processor ut ilizat ion and demand for more I/O per server, while HDD throughput remains flat
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Reliance on I/O-intensive solut ions for critical applications is growing
IT Managers are looking for storage solut ions that can span both, hot and cold data, opt imizing for performance and value
$0$5
$10$15$20$25$30$35$40$45
2011 2012 2013 2014 2015 2016
Billi
ons
($)
Enterprise Storage Revenue Forecast (IDC) I/O intensive so lutions growing at 57% CAGR
Cost/capacity optim ized 19% CAGR growth is driven by the explosion o f unstructured data
Cold/ Stat ic Data
Hot/ Act ive Data
I/O Intensive (Flash)
Cost Opt imized
Performance Opt imized
IDC,, Wo rldwide Enterprise Sto rage System s 20 13– 20 17 Fo recast, May 20 13; Do c # 2410 33 (No te : CAGRs calculated fo r 20 11- 20 16)
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Flash storage can be deployed at various layers to accelerate transactional application perform ance
Sto rage Network
Client Ne twork
Dell Fluid Cache for DAS on PowerEdge
Dell Compellent All-Flash or Hybrid-Flash Array
Tiering o r caching in shared sto rage
Server- based cache
Indexing • Maintains indexes to
allow quicker access to data
• Runs on databases to accelerate locating a block o f data in queries
Data Warehousing • Sto red data used to
create reports o r derive Business Inte lligence
• Used fo r data m ining, analysis, hypo thesis testing, m odeling
OLTP • Manage transaction-
o riented applications, i.e . re tail, banking
• Business can be hurt if data no t accessible ,slow
• During peak usage , custom er experience can be effec ted
VDI • Hosting desktop OS
within a VM on a centralized server
• Facilitate a quick re trieval o f go ld im ages
• Boot sto rm s, write allocations and latency are issues
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“We’re successfully m itigating boo t sto rm s as well as load sto rm s when a lo t o f people are logging into the ir virtual desktops at once . You’d be surprised how m any IOPS it takes to log in—it’s one o f the m ajo r challenges with large- scale VDI.” Luther Bo wens, System s and Operatio ns Manager Indianapo lis Public Scho o ls
4x reduction in hardware costs with $2M savings every re fresh cycle
$140,000 annual savings in suppo rt
10 sec o r less fo r virtual desktops to load
Indianapo lis Public Schoo ls deployed Com pellent with SSDs to optim ize storage performance for VDI
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• Data that is highly valuable to the business and can be used fo r deriving business inte lligence , financial analysis, e tc .
• Hot vs. co ld data • Read intensive vs write intensive • Data optim ized fo r tie ring vs caching • Random vs sequential
Performance expectat ions
Access patterns and frequency
Business value
• Application perfo rm ance sem antics: Concurrent users, TPS
• Sto rage perfo rm ance sem antics: throughput, IOPS, perfo rm ance per GB, File perfo rm ance
What characterizes your workloads? Traditional “one size fits all” data sto rage strategy is unrealistic
Each type of data needs to be treated different ly to align the applicat ion performance with capacity and cost requirements
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Write- Intensive SLC SSDs
Read- Intensive MLC SSDs
Mainstream Apps, Any usage
Mostly Read 90 /10 R/W Mix
Workload
400 GB 1.6 TB
Capacity
Great No t as great Write endurance
30 3 Full-drive writes/day
Great Great Random read perf.
Great Moderate Write performance
4x 1x Relat ive costs
Tier
1
Tier
2
Tier
3
WI SLC SSDs
RI MLC SSDs
HDDs
Com pellent Hybrid- Flash Array
Tiering Across Flash Types is Necessary Accelerate Flash Economics Dell is the first storage solution to tier sub-LUN data across SSDs
7 @Dell_Enterprise Enterprise So lutio ns Marke ting 7
Secret sauce behind the flash optimized Compellent: t iering with Data progression
Flash- optim ized Data Progression leverages the endurance o f write - intensive SSDs and the value o f read-intensive SSDs.
Advanced software t iering seamlessly manages data • Incom ing writes are written to write intensive SSDs fo r fast access
• Read intensive data is autom atically m oved to read optim ized MLC keeping Tie r 1 free fo r new incom ing writes
• Cold data is m igrated to tie r- 3 ro tating disk
Tier 2
Tier 1
Tier 3
RAID 10
RAID 6
Write Intensive Enterprise SAS SSD
Read Opt imized Enterprise SAS SSD
RAID 5
RAID 5
RAID 6
RAID 5
7.2K SAS HDDs
$$$
$$
$
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Compellent introduces flash innovations that change the economics of flash storage
Storage Center 6.4 • Extends tie ring to m ultiple flash
types
• Data progression enhancem ents
• Best perfo rm ance at the lowest possible cost
Flash enclosure • Up to 59% lower cost than
m ost all- flash so lutions
• Industry’s first MLC & SLC SSD inte lligent flash tie ring
• Introduces 1.6TB MLC SSDs
Dense enclosure • 336TB in 5U
• Designed fo r cost/capacity optim ized data growth
• Ideal as Tier 3 in hybrid configuration
• Ideal fo r large- scale file archival
Tier 2
Tier 1
Tier 3
RAID 10
RAID 6
Write-Intensive Enterprise SAS SSD
Read-Intensive Enterprise SAS SSD
RAID 5
RAID 5
RAID 6
RAID 5
7.2K SAS
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New economies of flash: tiering innovations allow Compellent to offer flash at the price of disk
Space Savings
264 x 15k HDDs
24 x SSDs
Workload requirement: 40,000 IOPS
30TB Raw Sto rage
Com pellent 15K HDD System
26U
• 84% RU reduction • 50% m ore IOPS • 90% latency reduction • 56% lower price
Benefits o f Tiered Flash
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Designed to address mult iple performance levels Com pellent helps align sto rage perform ance with workload requirem ents
Cost opt imized HDD-based for lowest $/GB Large capacity, lowest $/GB
• When large datase ts are required
• Data that is no t perfo rm ance sensitive
• Backup and archive
Hybrid for general workloads Capacity with mainstream applicat ion performance
• Better perfo rm ance with lim ited flash capacity
• General workloads
All- flash for business crit ical workloads Large capacity flash with low latency and scalability
• Tier 1 applications
• OLTP Oracle database
• VDI go ld im ages and logs
• Big data analytics
WI & RI SSDs
WI & RI SSDs
7K RPM HDDs
15K RPM HDDs
7K RPM HDDs
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How do you scale your business when budgets are fixed?
$$$
Faste r drives o r m ore drives
Faste r sto rage connections
Faste r RAID configuration
13
Server Server Server Server
Storage Network
Storage Area Network (SAN)
Even with Flash-Optimized Storage, Latency can be an Application Performance Killer
Fn (rpm, lrot, lseek, lvlRAID, szeRAID , ndrives , …) + Fn (lsan, bsan) + Fn (Ctrlsan)
Applicat ion IOPS
=
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Introducing Dell Fluid Cache fo r SAN Advanced Integrated Host- based Caching So lution
1 Install Fluid Cache software
Private cache network (10/40 GbE)
3 Configure a cache network
4 Integrate administrat ive services
Cache Client Servers** Dell Cache Contributor Servers*
Storage network (FC or iSCSI)
Dell Compellent SAN
2 Add PCIe SSD
Cache pool
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Extraordinarily Low Latency Maximizes Transactional Workload Performance
Asymmetry • Cache capacity can be distributed
unevenly across the c luste r • Hosts with no PCIE cache can
leverage the benefits • Non- Dell se rvers supported
Write-Back • Accelerates read and write
perfo rm ance • Maxim izes true IO perfo rm ance • Fast m irro ring over RDMA to
pro tect data
Federat ion • All hosts see all cache capacity • RDMA- over- Etherne t (RoCE) • Host failure results in no data lo ss
Fully Integrated • Snapsho ts are consistent • Replication is consistent • Fully m anaged through
Com pellent Enterprise m anager
16
Shared PCIe SSD cache
Dell Networking Low latency 10GBe switch Private cache network
Storage network (Fibre Channel or iSCSI)
Dell Compellent SC8000 and storage array
PCIe SSDs* PCIe SSDs*
Dell R720 Dell R720 Dell R720
Storage Area Network (SAN) Dell Storage Center SC6.5
OLTP Workload: SQL on Vm Ware 3 node architec ture Dell lab test
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3- Node Host Cache Delivers Exce llent SQL Perfo rm ance Gains
0
25
50
75
100
125
150
Without FluidCache for SAN
Fluid Cache forSAN
86% reduct ion
$0
$15
$30
$45
$60
$75
$90
Fluid Cache forSAN
Without FluidCache for SAN
56% reduct ion
Average Response Time (ms)
Cost per concurrent user
0
1500
3000
4500
6000
7500
9000
Fluid Cachefor SAN
Without FluidCache for SAN
2.5x improvement
Transact ions per second
18
Private cache network (10/40 GbE)
Storage network (FC or iSCSI)
Dell Compellent SC 8000 and storage array
Cache pool
Dell R720 Dell R720 Dell R720 Dell R720 Dell R720 Dell R720 Dell R720 Dell R720
OLTP Workload: Oracle on Bare Metal 8 Node Architec ture Dell Lab test
19
8 - Node Host Cache Delivers Am azing Oracle Im provem ents
0
100
200
300
400
500
600
700
800
900
Without FluidCache for
SAN
Fluid Cachefor SAN
99.3% reduct ion
Average Response Time (ms)
0
2000
4000
6000
8000
10000
12000
14000
Fluid Cachefor SAN
Without FluidCache for
SAN
6x more users
Concurrent Users
0
1500
3000
4500
6000
7500
9000
10500
12000
13500
Fluid Cachefor SAN
Without FluidCache for SAN
4x more TPS
Transact ions per Second
20
Transact ions/Second
Average Response Time
1900 14000
1979 12609
46ms. 6ms.
7.4x
6.4x
87%
No. of concurrent users
No. of concurrent users
3 Node Architecture 8 Node Architecture
Transact ions/Second
Average Response Time
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Compellent extends the economic value with a feature-rich storage platform
Optimal $/GB & $/ IO Lower TCO by balancing perfo rm ance and capacity needs in a single platfo rm , extending from the co ld HDD tier all the way to the host.
Automated Tiering Autom atically m ove data be tween Flash tie rs and HDD tiers based on IO dem and. Inc ludes com pression as a tie r.
Scalability Scale to m eet sto rage requirem ents with e ither SSD o r HDD. Full thin provisioning o f block and file sim plify adm inistration
Investment Protect ion Perpetual licensing e lim inates fo rced refreshes. So ftware life > hardware life .
Scale-out File Clustered m ulti- PB NAS so lution fully integrated. All inc lusive license
Co-Pilot Support Leverage best o f breed enterprise c lass proactive support
$
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Dell Storage
Workload- optimized solutions for any size enterprise
Compellent
High-performance scalable storage
PowerVault
Affordable, entry level storage
DR Solut ions
Data management and protect ion
EqualLogic
Easy- to-use virtualized storage
Maxim ize effic iency, drive results faster and boost resiliency Vert ical file-
intensive apps
Converged infrastructures
Cloud deployments
I/O intensive applicat ions