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StorageWorks LeftHand SAN. Jasen Baker Storage Architect [email protected]. HP LeftHand Solutions. Technology leader Founded in 1999 as LeftHand Networks A recognized leader in iSCSI SANs More than 14,000 installations Over 4,000 customers Ranked as “Visionary” Gartner’s Magic Quadrant - PowerPoint PPT Presentation
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© 2008 Hewlett-Packard Development Company, L.P.The information contained herein is subject to change without notice
StorageWorksLeftHand SANJasen BakerStorage [email protected]
HP LeftHand Solutions• Technology leader
− Founded in 1999 as LeftHand Networks− A recognized leader in iSCSI SANs− More than 14,000 installations− Over 4,000 customers− Ranked as “Visionary” Gartner’s Magic Quadrant− Acquired by HP in Nov, 2008
• All inclusive feature-set focus− “Pay-as-you-grow” architecture− Performance− Scalability− Availability− Simple management
• Must support dynamic workloads concurrently
Performance
• Scale capacity and performance linearly• No forklift upgrades or disruption
Scalability
• High availability: Data remains online when disaster strikes• Disaster recovery: Data is recoverable after a disaster strikes
Availability
• Simple to administer
Manageability
Storage requirements
HP StorageWorks array portfolio
MSA2000
Outstanding TCO
• FC & iSCSI host ports• FC & FATA HDD• Storage
consolidation + disaster recovery
• Simplification through virtualization
• Windows, HP-UX, Linux, VMware, Citrix, Hyper-V, MAC OS, and More
Always-on availability
• Data center consolidation + disaster recovery
• Large-scale Oracle/SAP applications
• HP-UX, Windows, + 20 more, including NonStop & mainframe
Low cost consolidation
• 4GB FC, 1GbE iSCSI, and 3Gb SAS
• SAS & SATA together• Controller-based
snapshot/clone• Windows, Linux,
VMware• WEB, Exchange, SQL
Business Continuity and Availability
Cons
olid
atio
n an
d Pe
rform
ance
XP EVA
XP24000
XP20000 All-in-
One
Simple Unified Storage
• iSCSI SAN and Optimized NAS with integrated snapshots, backup, replication, and simple management.
• Windows, Linux, VMware, more.
LeftHand SAN
Scalable, Clustered IP SAN
• Scalable performance
• SAS & SATA HDD• Cost effective
high availability• Simplified mgmt
for virtualization• VMware, Citrix,
Hyper-V, Windows, Linux, and More
The Value of iSCSI SAN ArchitectureInstallation and Management • Build dedicated GigE Subnet • Load iSCSI Initiator on Server• Install/Configure Network Storage Modules• Install Centralized Management Console • Mount and format volumes
•Scalable performance and capacityStorage Clustering
•Beyond the box availabilityNetwork RAID•Reduce costs, increase capacity utilizationThin
Provisioning
•Data protection, tape storage reductionSnapshot
•Disaster recovery via integrated replicationRemote Copy
5 features with every LeftHand SAN
Typical Storage Array Architecture
Monolithic Array• Not scalable
• Controller head Becomes bottleneck
• Scales capacity only• Single point of failure• Forklift upgrades
Scale-up Storage
SAN/iQ Storage ClusteringTrue clustering brings reliability, performance, and ease of management
•Storage clustering− Aggregates critical components− Data is load balanced− Predictable scalability
•Grow on your terms− Scale-out storage− Non-disruptive− Throttle bandwidth
•Storage tiering− Optimized for type of data− Online volume migration
•Simple centralized management− One step server-volume mapping− Integrated performance management
SAS
SATA
Centralized Management Console
DiskCache
Storage Node
Hardware RAIDSAN/iQ Storage
SoftwareRedundant CoolingRedundant power
CPUNICs
High Availability: Need is Greater With Server Virtualization
Traditional Servers Virtualized Servers
One server failure, one application goes down One server failure, ALL applications goes down
• Application server consolidation onto fewer physical servers exposes users to more application downtime in event of a hardware failure.
• Storage consolidation also creates a single point of failure!
Network Storage Modules
P4500 P4300
Rack Units 2U 2U
Quantity Drives 12 8
Hardware RAID Levels 5, 6, 10 5, 6 10
Quad Core Processors Yes Yes
15K RPM SAS Hard Drives1.8 TB3.6 TB5.4 TB
2.4 TB
7.2K RPM SATA Hard Drives3 TB6 TB9 TB12 TB
4 TB6 TB
•Full Featured Virtual SAN− SAN/iQ within an ESX
virtual machine− Virtualizes an ESX
server’s internal disk resources
− Significant storage footprint (up to 10TB)
− Only SAN appliance on VMware SAN/Storage HCL
− Highly Available storage across multiple ESX systems
− Shared storage for VMs
Virtual SAN Appliance for VMware ESXHigh Availability for Server & Storage For Remote/Branch Offices
VSAVSAVSA
LeftHand SANsCost effective storage for virtualization, easy to implement
SATA StarterSAN
SAS Starter SAN
VirtualizationSAN
Multi SiteSAN
Ala CarteStorage Nodes
Disk Drives 16 - 320 16 - 320 24 - 480 48 - 960 VariesStarting Capacity 12.0 TB SATA
9.4 TB Useable4.8 TB 15K
SAS
3.8 TB Useable
10.8 TB 15K SAS
8.2 TB Useable
21.6 TB 15K SAS
16.5 TB Useable
Varies
SAN/iQ Features• Storage Clustering• Network RAID • Thin Provisioning• Snapshots / Smart Clones• Performance Monitor• Remote Copy
3 Yrs Basic Support 1 yr Basic Support
Training Additional CostWindows Solution PackVirtual SAN Appliances $1,500 Per VSA
3 Yrs Basic Support
$1,500 per VSA3 Yrs Basic Support
10 VSA’s FREE3 Yrs Basic Support
10 VSA’s FREE3 Yrs Basic Support
$3,500 per VSA1 Year Support
Site 1 Site 2
Live Demonstration
SAN/iQ Network RAID
C
B
RAID 50 and RAID 100 - A combination of RAID 5 or 10 and RAID 0, where data is protected at the drive level with Raid 5 or 10 to provide for recoverability due to a disk drive failure, and the Data Volume (LUN) is then striped or spanned across the RAID set with no additional protection (RAID 0).
RAID 5+ RAID 0 = RAID50
RAID 10+ RAID 0 = RAID100
Application Server
POWERFAULT DATA ALAR M
Volu
me
1
Loss of an NSM within the clusterHowever With RAID 50 or 100 the loss of an entire unit would result in the loss of the volume since a portion of the data would be lost that comprises the volume. This could result in the server or application going down.
This is actually the highest level of protection that some of our competitors offer (either within a single enclosure across multiple RAID 5/10 sets, or spanned across multiple units configured with RAID5/10.
Our Network Raid Technology over comes this limitation
RAID 50/100
A
With RAID 50 a drive in 1 or more units could fail and the volume would still be available.
With RAID 100 2 drives in 1 or more units could fail and the volume would still be available.
AA
A
D
D
SAN/iQ Network RAID
C
B
B
B
C
C
Network RAID (across Cluster Protection) SAN/iQ Network RAID stripes and mirrors multiple copies of data across the storage modules in a cluster, completely eliminating any single point of failure.
Network RAID is specified on a per volume basis and can be used in conjunction with RAID 0 for performance, and RAID 5 or 10 for added protection and reduced rebuild times
Replication level None (0), 2, or 3
Application Servers
POWERFAULT DAT A ALARM POWERFAULT DATA ALARM
Volu
me
1
Loss of an entire NSM within the clusterData access speeds remain constantNo parity calculation requiredNo interruption of application access to dataCan Sustain Loss of multiple NSM’s
SAN/iQ Network RAID level 2
ExampleIn this example Volume 1 is striped across 5 individual NSM’s configured with Raid 5 disk protectionReplication level = 2BENEFITSLoad BalancingSingle drive loss protection in each NSM (from RAID5)Multiple (alternate) NSM loss protection in the cluster (From Network RAID)10 GigE connection points to Volume 1Highly redundant, fault tolerant systemEnable spread of data over a dynamic # of spindles
A
D
SAN/iQ Network RAID
CD
D
ExampleIn this example Volume 1 is striped across 5 individual NSMsRaid 5 disk protectionReplication level = 3BENEFITSLoad BalancingSingle drive loss protection in each NSMMultiple adjacent NSM loss protection in the cluster10 GigE connection points to Volume 1Highly redundant, fault tolerant systemEnable spread of data over a dynamic # of spindles
Application Servers
POWERFAULT DATA ALARM POWERFAULT DATA ALARM
Volu
me
1
Loss of NSM’s within the clusterData access speeds remain constantNo parity calculation requiredNo interruption of application access to dataCan Sustain Loss of multiple Adjacent NSM’s
SAN/iQ Network RAID Level 3
C
C
CA
A
A
D
BB
B
B
B
B
SAN/iQ Multi-site SANReal-time protection from site failure
Protect Storage By:− Racks− Room− Floor− Building− Site
Keep Data Online During:− Facility disruption− Natural disaster− Site maintenance
SAN/iQ ClusterSAN/iQ Multi-site SAN
A D A D
BA BA
C B BC
C D C D
Volumes Remain Online
SAN/iQ Multi-Site SAN and VMware ESX Cluster
VMware ESX HA Cluster
SAN/iQ Cluster is configured with equal storage in each siteESX cluster is configured with equal hosts in each siteSAN/iQ Network RAID replicates data between sites synchronouslyIn the event of a site failure SAN/iQ keeps volumes availableESX High Availability boots up virtual machines lost at the failed siteWhen the failed site comes back online ESX rebalances virtual machines (DRS)
6 Blocks
SAN/iQ Multi-site SANA D A D BA BA
C B BC C D C D
Volumes Remain Online
University of Maryland School of Medicine Campus
Remote Office Solution PackCost effective disaster recovery, no hardware required
SAN/iQ Cluster
SAN/iQ Cluster
SAN/iQ
SAN/iQ Cluster
SAN/iQSAN/iQ SAN/iQ
Replication for up to 10 remote sites• No SAN hardware at remote
sites• No other vendor can offer this• All other offerings are host
based or require hardware at remote sites
Included for no additional cost with:• Virtualization SAN• Multi-Site SAN
Support included with physical SAN
Traditional Provisioning
LeftHand NetworksThin Provisioning
50 GB
100 GB
30 GB
Auto Grow
Auto Grow
Auto Grow
Actual Capacity
Stranded Storage
Volume Size(Virtual
Capacity)
SAN/iQ Thin ProvisioningRaise storage utilization, increase return on investment, and reduce costsCost Savings− Purchase only what you need
today− Allocate only as data is written− No reserve necessary− Integrated with SmartClones,
Snapshots and Remote Copy
Delay Future Storage Purchases− Grow capacity as warranted
Simple to Manage− Enable/Disable with radio button
on per-volume basis
21
SAN/iQ Smart CloneReduces storage costs with efficient volume/snapshot copies
Space-efficient copies of volumes and/or snapshots, no duplicated data• Pro-active NOT Re-Active Deduplication!• New Smart Clone volumes contain no data, only changes are stored• Perfect for storing system images efficiently (boot from SAN and desktop)• Instant provisioning of volume copies for test and development
• Testing can be done with real data• No impact to production
Volume
SmartClone Volumes Fully functional volumesOnly changes stored
Original data, all clones use single copy
NO DUPLICATE
D DATA
100GB
100GB 100GB 100GB 100GB 500GB, 400GB duplicated data0GB 0GB 0GB 0GB 100GB of data, no duplication
SAN/iQ Performance Manager• Details
−Performance Monitor in the User Interface−Performance SNMP MIBs available−Performance Data Export capability for trending and analysis−Managed Objects
• Cluster• Application Servers• Volumes and Snapshots• Storage Node
−Performance Data Available• Throughput (MB per second)• IOPS (I/Os per second)• Latency (milliseconds)• Q-depth (I/Os pending)• Cache Hits (% cache hits)• CPU (% usage)• Memory (% usage)• Network Utilization (% utilization)
Matching Virtualization Features
Storage VirtualizationUses enterprise class x86 servers to Virtualize storage clusters
Server VirtualizationUses enterprise class x86 Servers to Virtualize multiple servers
Storage ClusteringData volumes are automatically load balanced and protected across storage clustersCapacity, IOPS, cache, and bandwidth scale linearly and dynamically as needed
VMware DRSContinuously monitors utilization across resource pools and intelligently aligns resourcesCPU, memory, and networks added dynamically as needed
Online Volume Migration Migrate volumes between storage clusters
VMotion Live migration of VMs between ESX Servers
Remote CopySynchronous replication of volumes to provide automatic failover
Site Recovery ManagerAutomatic failover of VMs to available ESX servers in clusters
Network RAIDSynchronous replication of volumes to provide automatic failover
VMware HAAutomatic failover of VMs to available ESX servers in clusters
Questions?
• Fault-tolerant• Easy to configure – No
switch configuration necessary
• 2 Gbit read / 1 Gbit write
Storage Cluster
Server Server Server
GigE Trunk
GigE Trunk
Active Path
Passive Path
SAN/iQ Network Connect - Adaptive Load Balancing(ALB) Bonding
Storage Cluster A
Server Server
Active Path
Passive PathServer
SAN/iQ Network Connect - Link Aggregation(802.3ad/LACP) Bonding
• NOT Fault-tolerant• Requires switch
configuration• 2 Gbit read/write per
NSM
NSM-1 NSM-3NSM-2VIP
A B C G H ID E F
Server-1 Server-4Server-3Server-2
Virtual IP - Store and Forward Architecture
Con: Creates singlebottleneck NSM
VIP hosts all dataconnection sessions.
NSM-1 NSM-3NSM-2VIP
A B C G H ID E F
Server-1 Server-4Server-3Server-2
VIP – iSCSI Load Balancing
Pro: Datapath Load isDistributed in a round robinAcross all NSMs
Each NSM sharesClose to an equal number ofsessions each.
NSM-1 NSM-3NSM-2VIP
A B C G H ID E F
Server-1 Server-4Server-3Server-2
LeftHand MPIO (DSM)
Pro: Datapath Load isdistributed across allNSMs
Con: Windows 2003 or 2008 only
Each NSM hostsdistributed IO loadshare for all volumes.