Upload
darcy-fisher
View
243
Download
2
Tags:
Embed Size (px)
Citation preview
Compellent Confidential, 1
Compellent Presentation to DECUS
The Next Generation Storage Platform
Compellent Confidential, 2
Who Is Compellent?
World’s Fastest Growing SAN Vendor– Sales growth in 2005 & 2006 > 2.5x
Founded in 2002– First product ship: Feb 2004– 150 Channel Partners
Today: over 600 customers worldwide– Customers in 15 Countries across North America, Europe
and Asia-Pacific– Growing in Europe since 2006 and now present in France,
Germany, Belgium, Holland, UK, Norway, Sweden and Switzerland
Support capabilities throughout Europe– Immediate support response from Compellent 24x7x365– Hardware spares on-site within 4 hour or Next Business
Day response time throughout Europe
Compellent Confidential, 3
Escalating CAPEX
What your IT Department might say:
We need to buy another new storage system
We have a lot of capacity, but we can’t use all of it
We need another new product to fix that problem
Paying for storage you can’t utilize?
00 01 02 03 04 05
UNUTILIZEDCAPACITY
Companies are only using 40% to 60% of their installed capacity.
Storage purchases areincreasing 60% to 70% every year.
Source: ESG, 2005
TE
RR
AB
YT
ES
YEAR
UNUTILIZED CAPACITY
Source: Gartner, 2005
Reduce storage CAPEX up to 74%.
InactiveData ~80%
Compellent Confidential, 4
Increased OPEX
IT staff utilized efficiently?What your IT Department might say:
We spend too much time managing storage
We don’t have time to work on that project
We work nights and weekends to keep up
Training for just that product is an entire week
Source: IDC, 2004
The cost of managing storage is rising to as much as 8x the acquisition cost
Initial Acquisition
TOTAL COST
Storage Administration
Cut storage OPEX in half.
Compellent Confidential, 5
Virtualization
Performance optimization–Automatically read/write data to all spindles–Efficient use of disk platters – use outside
sectors first–I/O concatenation–Elevator sort
Change RAID type for any volume online
Automatic storage-level defragmentation–Automated block placement maximizes
efficiency
1000GB - RAID 10Oracle on Solaris
Disk FolderRAID 5Page Pool
RAID 10Page Pool
250GB - RAID 5Exchange on
Windows
Innovative architecture without legacy limitations
Compellent Confidential, 6
Dynamic Capacity “Thin Provisioning”
Steven Dahlin
Compellent Confidential, 7
Traditional SANs
Traditional SAN storage allocation – Disks are formatted with a specific RAID type– LUNs are carved from the RAID type– LUNs are assigned to specific servers– Administrator must OVER ALLOCATE physical storage
to servers, creating islands of storage
THIS MEANS ALLOCATED BUT UNUSED STORAGE!
Data Data
Data
Conventional Allocation
Database
E-mail CRM
Compellent Confidential, 8
Traditional SANs
Why is the traditional SAN structure inefficient? – Disk storage is captive to specific servers, not all applications
grow at the same rate.
– How do you re-purpose storage? Back up resize, restore - time consuming, costly, dangerous, not always possible
– Inefficient use of physical storage, not better than DAS.
– If you have storage that cannot be freed up, you have to purchase additional storage prematurely
Vol 1 Vol 2 Vol 3
VirtualVolumes Vol 2 Vol 1 Vol 3
Compellent’s ApproachTraditional Disk Mapping
Compellent Confidential, 9
Dynamic Capacity Difference
Dynamic Capacity – On line volume expansion is NOT thin provisioning
• Thin provisioning is the ability to provide logical volumes to servers without allocating any physical blocks of storage
• Compellent supports both thin provisioning and the real-time, on-line expansion of logical volumes
Compellent Allocation
Data
Data
Data
Shared common space pool
6+ TB Dynamic Capacity
1 TB Physical Storage
250GB 250GB 250GB 250GB250GB146GB 250GB146GB 250GB146GB 250GB146GB
2TB 2TB 2TB2TB2TB 2TB2TB 2TB2TB
Compellent Confidential, 10
Dynamic Capacity Difference
Dynamic Capacity Operates on a
block level - Why is this important?• OS, file system and application
independence• The underlying Dynamic Block
Architecture has laid the groundwork for the possibility of Dynamic Capacity
• Blocks are only assigned to a volume when the server requests a write
• Supports all types of FC and SATA disk in the same storage pool
• Physical storage growth is on-line without server or storage system downtime or performance degradation
Metadata
Disk
Dynamic Block Architecture
Compellent Confidential, 11
Dynamic Capacity Performance
Completion time
Completion time
Conventional copy or rebuild
Compellent copy or rebuild
Copy or rebuild
Copy or rebuild
Compellent Confidential, 12
Dynamic Capacity ROI
Compellent Confidential, 13
Dynamic Capacity Benefits
Benefits– Less storage is required up front– Reduce disk spending by adding storage incrementally– Eliminate downtime due to volume expansion– Automate capacity planning– Increase system performance with disk operations based
only on written data (copy/mirror/migrate/RAID rebuild, replication)
– Unused physical storage is available to all volumes– Add more servers per storage system– Significant Return on Investment (ROI) potential
Compellent Confidential, 14
Data Progression
Steven Dahlin
Compellent Confidential, 15
Terminology
ILM (Information Lifecycle management)– Process of managing data throughout its lifecycle across
different storage media– ILM has intelligence to look into the content of the files for
application awareness
DLM (Data Lifecycle Management)– Process of managing data throughout its lifecycle across
different storage media – DLM is focused on the movement of data
Source: Industry sources
Compellent Confidential, 16
Industry Benchmarks
• Most data is inactive and can be progressed to lower performance
disk/RAID
• Industry analysts and SNIA agree on the 80% guideline for idle data
• Compellent can provide positive ROI at only 35% idle data or more
Compellent Confidential, 17
Current Barriers to DLM
• Data classification requires manual intervention
• Available only on expensive, monolithic storage or dedicated software / hardware solutions
Critical Critical datadata
Enterprise Class RAID
Midrange RAID JBOD
Tape library
servers
Important Important datadata
Idle Idle datadata
Archival Archival datadata
Source: Infostor
SAN
Critical Critical datadata
Enterprise Class RAID
Midrange RAID JBOD
Tape library
servers
Important Important datadata
Idle Idle datadata
Archival Archival datadata
Source: Infostor
SAN
• Dedicated to today's drive technologies
• Available only on specific OS
• Operates only at the file level
• Does not address use of snapshots
Compellent Confidential, 18
What does Data Progression do?
• Allows a volume to exist across different disk types, sizes, speeds and RAID levels.
• Monitors I/O and distributes data based on block access patterns• Leverages cost and performance differences between disk types -
maximizing use of SATA disk for bulk storage and FC disk for high speed data access
• Optimizes the use of RAID 10, RAID 5 (5) and RAID 5 (9) to further enhance disk utilization without sacrificing performance
• Snapshot storage is automatically placed on the lowest tier and RAID level
• Enables the adoption of newer disk technology while fully leveraging previous disk investments
• Provides significant reduction in IT spending
Data Progression aligns storage to data value
Compellent Confidential, 19
How Data Progression works
Compellent Confidential, 20
How costs are reduced
Fibre Channel SATA
Disk Technology
RAID 10 RAID 5
Replays
RAID levels
Source volume Lower cost volume
Compellent Confidential, 21
Enabling Technology
Dynamic Block Architecture™ enables functionality– Built-in at the block level– No performance or capacity impact
Metadata for each block includes– Creation, Access, and Modification time– Frequency of access– Type and Tier of disk drive– RAID level– Corresponding volume– Data type
Metadata
Disk
Data blocks
Compellent Confidential, 22
Technology
Tier 1
Tier 2
Tier 3
Compellent Confidential, 23
Technology
DiskPerformance
lowhigh
hig
hlo
w
RAID Overhead
Tier 1
Tier 2
Tier 3
Compellent Confidential, 24
Technology
RAID 10
RAID 5 / 5
RAID 5 / 9
RAID 10
RAID 5 / 5
RAID 5 / 9
RAID 10
RAID 5 / 5
RAID 5 / 9
DiskPerformance
lowhigh
hig
hlo
w
RAID Overhead
Tier 1
Tier 2
Tier 3
Compellent Confidential, 25
Technology
$ $ $ $ $ $ $ $ $
$ $ $ $ $ $ $ $
$ $ $ $ $ $ $
$ $ $ $ $ $
$ $ $ $ $
$ $ $ $
$ $ $ $ $ $
DiskPerformance
lowhigh
hig
hlo
w
RAID Overhead
Tier 1
Tier 2
Tier 3
Compellent Confidential, 26
Customer Scenario
Performance
lowhigh
hig
hlo
w
Cost
Tier 1
Tier 2
Tier 3
Compellent Confidential, 27
Progression Down
Data Access
Rate
Data Progression
Move to a lower tier
• Data moves after 12 days12 days of reduced access
• Movement based on tiers selected
• Data and replays are moved independently
time
12 Days
Compellent Confidential, 28
Progression Down
Data Access
Data Progression
Data Access
Data access impact
• Read/write access delays progression
• Movement based on DP value
• Various tools prevent constant movement
delay
time
Data Access
Rate
Compellent Confidential, 29
Progression Up
Data Progression
Movement to a higher tier
• Data moves after 4 days4 days of increased access
• No access delays progression
• Various tools prevent constant movement
• Movement based on tiers selected
Data Access
Rate
4 Days
Compellent Confidential, 30
Data Progression
Automatically create volumes or files that span multiple tiers – Volumes are presented that look like a
large drive to the server
– Within the volume, multiple types of storage are used and data is optimally placed
– No impact to the server
– Only blocks are moved, not files
– Files will be spread across different storage types
Rows from recent queries
Rows written last week
Rows with infrequent access
1 TB Database (purchases.db)
Compellent Confidential, 31
Data Progression
Exchange Database – 10GB(exchange.edb)
Tier 1Tier 1
15,000 RPM FC
Tier 2Tier 2
Mid-tier FC
Tier 3Tier 3
SATA - RAID 5
500 MB stored •This week’s calendar• Inbox• Recent sent items• New contacts
500 MB stored• Next month’s calendar• Deleted Items
9.0 GB stored• Previous calendar• Sent mail• Contacts
Compellent’s Approach
Traditional Allocation
Tier 1Tier 1
15,000 RPM FC
Tier 2Tier 2
Mid-tier FC
Tier 3Tier 3
SATA - RAID 5
Exchange.edb
Exchange.edb
Compellent Confidential, 32
Data Progression Set up
• Each volume
can be
configured
differently
• DIR data is
stored on lower
RAID/Tiers
• RAID and Tiers
can be changed
at anytime
Compellent Confidential, 33
Data Progression Management
• System view of
Tier/RAID use
• Progression
down and up
is forecasted
• Historical
trending is
charted
Compellent Confidential, 34
Data Progression Management
• Volume view
of where your
data lives
• Clear view
of storage
trending
Compellent Confidential, 35
Data Instant Replay
Steven Dahlin
Compellent Confidential, 36
Traditional Snapshot Technology
Copy on Write Limitations– Performance degradation– Additional storage captured– Storage must be pre-allocated for snapshots, reducing
the amount of available storage– Read only snapshots when recovered– Might only be scripted or GUI driven or vice-versa– Do not automatically expire after preset period– Limited number of snapshots
Compellent Confidential, 37
Traditional Snapshot Technology
Full Copy Limitations– Consumes additional storage capacity– Time to create replacement volume substantially higher– May incur higher software licensing fees
Compellent Confidential, 38
Compellent Data Instant Replay
There is a better way today! • Intuitive scheduling interface• Space efficient, time based
replays• A Replay can be mapped to
any server• Replays are read and write• Can recover without full clone• Extremely small amount of
storage used
Compellent Solution
11:45
12:00
12:15
12:30
Compellent Confidential, 39
Compellent Data Instant Replay
Compellent Solution
11:45
12:00
12:15
12:30
• No pre-allocation of storage required
• Automatic coalescence of Replays blocks used get returned to the overall storage pool
Compellent Confidential, 40
Data Instant Replay - D/R
Local
12:00
12:10
12:20
Remote
12:00
3:00
6:00changesonly
• Disaster recovery for every volume• Efficient• Restore complete server
– OS, Configuration, Applications and Data • Recover locally or remotely• Non disruptive remote testing
Compellent Confidential, 41
Replays / Server Instant Replay
Problem– Recovering from server failures is slow
and resource intensive
Solution – Server Instant Replay– Recover server(s) in minutes
– Use SAN boot capabilities to centralize boot volumes and applications
– Recover locally or remotely
Benefits– Restore complete server
• OS• Configuration• Applications• Data
Best fit– Server Farms– Large Boot from SAN installations
Space efficient booting
Scenario
Compellent Solution
Painful, Extended Recovery
Remote Site
Seamless Server Restoration
Compellent Confidential, 42
Microsoft Volume copy Shadow Service
1. Initiate Replay request• From Compellent Storage
Controller (manual or scheduled)
2. Volume I/O freeze• Windows 2003 Storage Server
3. Take Replay• Initiated on Windows 2003• Request to Compellent Storage
Controller• Compellent Replay
4. System thaw• Continue with operation
Compellent Storage Controller
CompellentVolume
2. Freeze3. Snap4. Thaw
1
3
3
Compellent Confidential, 43
Online backup with Data Instant Replay
Compellent Storage
Controller
Compellent Volume
Application Server
Backup Server
Tape Drive or Library
Replay View Volume
Primary Data Path
Backup Data Path
• Integration with VSS/Exchange, SQL2000 and Oracle• Scriptable
Compellent Confidential, 44
Intuitive Scheduler
Intuitive interface, Outlook™-like scheduling
Unlimited Replays at user defined intervals
Multiple schedules per volume
Compellent Confidential, 45
Data Instant Replay Benefits
Benefits• Instant recovery from file deletion or file corruption• Support a customer Service Level Agreement (SLA) for
data availability• Regulatory compliance for data recovery• Patch deployment testing• Software development environments• Disaster recovery testing• Near continuous data protection• Serverless backup
Compellent Confidential, 46
Remote Instant Replay Introduction
Steven Dahlin
Compellent Confidential, 47
Value Proposition
Local
12:00
12:10
12:20
Remote
12:00
3:00
6:00changesonly
Remote Instant Replay brings affordable,
enterprise-class business continuity to
the mid-market
Remote Instant Replay brings affordable,
enterprise-class business continuity to
the mid-market
Compellent Confidential, 48
Redefine traditional replication– CDP recovery intervals
– Replicate data and boot volumes
– Simple installation
– Lower cost hardware
Redefine traditional recovery– Validate while replication is online
– Space efficient volume recovery
– Server recovery improvement
– Eliminates complex testing
– Utilize OS virtualization
Local
One-to-One One-to-ManyMany-to-One
Any-to-Any
12:00
12:10
12:20
Game Changing Disaster Recovery
Scenario
Bi-directional Replication ModesSynchronous • Asynchronous • Semi-synchronous
Remote
12:00
3:00
6:00changesonly
Compellent Confidential, 49
How costs are reduced
Thin Provisioning
Bandwidth
Actual data volume
Disk TechnologyFibre Channel SATA
T1 – T3
Fibre Channel IP
Interface
T3 – OC12
Allocated but unused volume
FC-IP conversion IP-FC conversion
Compellent Confidential, 50
Business Continuity
Higher granularity than traditional implementations
Test and validate replication without downtime
Vol. 2
Vol. 1
Vol. 3
Vol. 4
– Any replay can be recovered
– Convert to actual volume with a single command
– Validation occurs in seconds while online
– Each volume has unlimited replays
– All schedules are independent
– Provides CDP class recovery intervals2:00 PM 2:10 PM 2:20 PM 2:30 PM
4:00 PM 5:00 PM 6:00 PM 7:00 PM
3:00 PM 3:15 PM 3:30 PM 3:45 PM
2:00 PM 2:30 PM 3:00 PM 3:30 PM
Volume validation
Compellent Confidential, 51
Asynchronous Replication
Primary System
Remote Site 1
IP
IP network
Router
IP
Remote Site 2
Remote Site 3
Compellent Confidential, 52
Set Up in 3 Steps
SIMPLE Set Up Wizard
1. Select destination system
2. Select volumes to replicate
3. Set Bandwidth QoS
Compellent Confidential, 53
Hardware Overview
Storage Center Controllers • Standards-based hardware• Server and disk connections via PCI cards• Controller clustering for high availability
– “Shared nothing” approach– High-speed mirrored, write-back cache
Storage Center Disk Enclosures • Scale from 500 GB to over 500 TB• Expand storage online• FC switched disk enclosure (SBOD)
– Drives supported: FC, Mid-tier FC– Mix FC and Mid-tier FC
• SATA disk enclosure
Server and disk drive technology independence — Mix and match any combination
Compellent Confidential, 54
Storage Center
Supports any open-systems server without agents– Connect via FC, iSCSI or both– Scale from 500 GB to over 500 TB
Reduce capital expenditures by 74%– Automated Tiered Storage– Thin provisioning
Cut operating expenses in half– Disk virtualization simplifies administration– Eliminate the need for 3rd party software
Ensure continuous data availability– Unlimited snapshots without full copies– Replication flexibility for low-cost DR
Reduce server costs– Reliable boot from SAN
Scalable Enterprise-class SAN solutionwith block-level intelligence
Compellent Confidential, 55
Questions