EMC_XtremSW_Cache_Technical_Overview

Report
EMC XtremSW Cache
Performance. Intelligence. Protection.
© Copyright 2013 EMC Corporation. All rights reserved.
1
EMC XtremSW Cache
Performance
Dramatic improvements in
latency and throughput
Intelligence
Extends EMC FAST architecture
into the server
Protection
Backed by intelligent, resilient,
highly available storage
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2
Supercharged Application Performance
 Server-side Flash
caching for maximum
performance
 Dramatic improvement
in application
performance for readheavy workloads
REDUCED
RESPONSE TIME
(LATENCY)
Baseline XtremSW
Cache
INCREASED
THROUGHPUT
(IOPS)
Baseline XtremSW
Cache
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3
Automated Intelligence
Extending the FAST Architecture
Ultra-Performance Tier
PCIe
Flash
Data
Activity
“Hot”
High Activity
Hottest data resides on PCIe Flash
Array
Flash
Performance Optimized
FC /
SAS
Apply different technology as data cools
SATA /
NL-SAS
“Cold”
Low Activity
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Age of Data
4
Total Protection
 Write-through caching with acknowledgement
 Shareable and scalable, no stranded storage
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5
Use Cases
CRM
ERP
OLTP
Email
Web Servers
Reporting
Analytics
Small
Working Set
Temp tables
External sorts
Working files
Write-intensive workloads
with small working sets
Read-intensive workloads
with small working sets
Write-intensive workloads
with large working sets
Read-intensive workloads
with large working sets
Backups
Write journals
Oil & gas
Data dumps
Image capture
Big Data
Streaming
Genetics studies
Large
Mostly Writes
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Workload
Mostly Reads
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Traditional Architecture
Server
Application
Network
CPU
Switch
1
2
Storage
Storage Array
3
SSD/HDD
4
Flash
FC /
SAS
8
7
6
5
SATA /
NL-SAS
Reads (latency: 500 μs – 10 ms)
Writes
 Reads and writes are serviced by the storage array
 Performance varies depending on back-end array’s media, workload,
and network
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7
XtremSW Cache Advanced Architecture
Server
Application
CPU
Network
PCIe Flash Card
1
2
Switch
3
Storage
Storage Array
SSD/HDD
4
Flash
5
9
8
7
6
FC /
SAS
SATA /
NL-SAS
Reads (latency: <100 μs)
Writes
 Reads are serviced by XtremSW Cache for
 Writes are passed through to the storage array for
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100% Transparent Caching
XtremSW Cache Driver extends the SAN
Application
XtremSW Cache Driver
SAN
HBA
XtremSF
SAN
storage
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Read Hit Example
1
1. Read request from
application to an
accelerated array LUN
Application
3
XtremSW Cache Driver
SAN
HBA
2
XtremSF
SAN
storage
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2. XtremSW Cache Driver
determines a hit occurred
and accesses data from
Flash device
3. Data returned from the
Flash device is forwarded
to the application
10
Read Miss Example
1
Application
2
XtremSW Cache Driver
4
SAN
HBA
XtremSF
3
SAN
storage
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1. Read request from
application to an
accelerated array LUN
2. XtremSW Cache Driver
determines a miss occurred
and accesses data from
array LUN
3. Data is read from the array
and returned to the
application
4. Read miss data is written to
Flash device
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Write Example
Application
1. Write request from
application to an
accelerated array LUN
XtremSW Cache Driver
2. XtremSW Cache driver
writes data to array
LUN and Flash device
1
2
2
SAN
HBA
XtremSF
3
SAN
storage
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3. Application write
acknowledged upon
array completion
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Application Testing Results
7.7X FASTER
PERFORMANCE
2.5X FASTER
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Latency
PERFORMANCE
1.0
1.0
RESPONSE TIME
3.1X BETTER
TPS
0.13
3.1
0.4
TPS
3.6X BETTER
3.6
Latency
RESPONSE TIME
1.0
1.0
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Inline Cache Deduplication
Greater economic value
 Better cost/GB: Effective cache size larger than
physical size
 Longer card life expectancy: Reduced number of
writes extends Flash life
Cache Size
Capacity
Physical
300 GB
Effective
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(with 20% dedupe ratio)
360 GB
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XtremSW Cache Split Card Mode
Cache
Local
Storage
Data
1
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Data
2
Temp
DB
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XtremSW Cache Performance Predictor
 Performance acceleration prediction
– Based on host side trace analysis
– No card or software purchase is required
– Easy to use and free of charge
 Deployment planning and
environment sizing
– View predicted performance in LUN
granularity
– Choose best LUNs to accelerate
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16
XtremSW Cache 2.0 Features
 Deeper integration with EMC
arrays
 Interoperability with:
–
–
–
–
VMware vCenter features
IBM AIX
Any server flash hardware
Oracle RAC*
 Control and efficiency via
XtremSW Management Center
* Available October 2013
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EMC Array Integration
VMAX
VNX
 Monitor XtremSW Cache directly
from Unisphere
 Manage XtremSW Cache directly
from Unisphere Remote
– LUN selection based on VMAX
trending analysis
– Integrated performance
statistics reporting
 Gain unmatched performance
boost
–
–
– LUN selection based on
VNX trending analysis
– Performance and
health monitoring
– Discovery and configuration
Prefetching (read full track) increases
IOPS by 25%
Cache coordination (optimized read
miss) increases IOPS by up to 2.5X
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VMware vCenter Features Support
 Transparent
vMotion Support
 Automatic
failovers
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ESX
server
XtremSW Cache
VSI plug-in
 Seamless
integration with
DRS, HA, SRM
XtremSW Cacheenabled virtual
machines
VMware vSphere
client
XtremSF hardware and
XtremSW Cache driver
VMware vCenter
server
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IBM AIX Support
 IBM Power 7 servers with AIX 6.1 and 7.1
 Standard edition of PowerVM
 Native clustering (PowerHA active/passive)
 Certified AIX SSDs supported as
underlying hardware
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Support with Any Server Flash Hardware
 Enables use of XtremSW Cache
in blade servers
 All form factors
– SSDs: All SATA or SAS devices
– PCIe Cards:
▪ HHHL and HHFL
▪ Devices with SATA, ATA, or SCSI bus
 VMware: SCSI devices only
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21
Oracle RAC Support*
Active-active shared storage via distributed cache coherence
 Oracle Database 11g on
Windows, RHEL, or OEL
running Oracle Clusterware
11g with Ethernet
interconnect
 Up to eight nodes per cluster
 Uses SCSI-3 Persistent
Reservations to block joining
node from accessing storage
until XtremSW Cache
approves it
* Available October 2013
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XtremSW Management Center
Greater control and efficiency
 Manage multiple
server flash
devices
 Access
environment
health and
performance
dashboards
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