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D-SeriesEnterprise Modular Storage
D-SeriesEnterprise Modular Storage
Solutions for Today’s WorldSolutions for Today’s World
© NEC Corporation of America0812122
Revenue: $41 billion
Fortune Global 200 company
$3B+ in research and development
15 R&D centers worldwide
Patents: 48,000 worldwide
In top rankings of U.S. patents for the last 12 years
50 years in the storage business
Market leader for open systems storage in Japan
NEC in the United States3,000 Employees
94 Locations$2B Revenue
© NEC Corporation of America
Dynamic IT Infrastructure
3 081212
© NEC Corporation of America
NEC Storage Heritage
1959
NEC Started Development
24" N262
14" Disk
4
2007
D-Series and HYDRAstor
T-Series and NV-Series
8” Disk
5” Disk
3.5” Disk
RAID
S-series
4 081212
© NEC Corporation of America0812125
D-Series Enterprise Modular Storage
NEC Storage Manager
Upgrade
Non-destructi
ve
Upgrade
Online
Upgrade
Online
D1
D3
D81 node
D82 node
D84 node
© NEC Corporation of America
D8 Advanced Features
• Nodal design– Multi-dimensional scalability– Flexible configurations– Resiliency
• Neural Cache– Resiliency with performance– Increases flexibility
• Don’t need switches– 8 – 64 FC host connections
• “VMware® for storage”– “Virtual Storage Partitioning”– Consolidate, lower costs– Guaranteed QoS– LOB management
• Thin Provisioning (coming)– Keep storage utilization high
• 7000 : 1 scalability– 219 GB – 1,536 TB capacity– 8 GB – 128 GB cache– Power footprint lower than
multiple systems
0812126
© NEC Corporation of America
D8 Features
• Phoenix technology
– Avoids RAID rebuilds
• T10 DIF & EDIF
– Catches silent data corruption
• Dynamic Pools
• PowerConserver (MAID+)
• VolumeProtector (WORM+)
• Performance optimization– Fixes I/O hotspots
• Snapshots
• Replication
• Performance management
• Complete redundancy
• Dual drive failure protection
– RAID-6
– RAID-3DP
– RAID-TM (triple mirror)
0812127
Uncommon Features Core Features
© NEC Corporation of America
D8 Key Benefits
• Extreme storage consolidation higher utilization
• Thin provisioning higher utilization (coming)
• Power footprint less than multiple systems
• Flexible configuration encourages multiple purposes
• High fan-out reduces need for switches
• Don’t pay for what you don’t need (bandwidth/capacity/performance)
• High resiliency lowers management time
0812128
© NEC Corporation of America
New Beyond the D3
• Scalable for performance or capacity– Adding HD, DD, Cache, nodes dynamically, individually
• Dual mirrored cache– High performance even in case of failure of 2 cache modules
• Four power supplies in one node– Can lose two temporarily without disruption
• Virtual Storage Partitioning– Guaranteed Quality of Service for applications
• RemoteDataReplication/DisasterRecovery– Guaranteed delivery order (Atomic Groups)
• Flash memory cache backup
0812129
© NEC Corporation of America
Independent 3-Dimensional Scalability
08121210
First Node First Node Extended
Cache ExtendableHD/DD Extendable
Expand storageExpand cache Expand ports
Expand
Online
Host Director = Connectivity
Cache = Performance
Disk Director = Addressable Capacity
© NEC Corporation of America
Independent 3-Dimensional Scalability
08121211
Host Director = Connectivity
Cache = Performance
Disk Director = Addressable Capacity
Node Structure
First Node
Storageonly
Portsonly
Mixed
Expand
Online
15 Patents15 PatentsPendingPending
© NEC Corporation of America
Flexible Configurations
08121212
Large DB or Archive:Large capacity, few hosts
Supercomputing:Many ports, mid-capacity
Consolidated storage:Multiple applications
8 FC ports32 Gbps FC1,536 HDDs
64 FC ports256 Gbps FC384 HDDs
40 FC ports160 Gbps FC960 HDDs
Example Config 1 Example Config 2 Example Config 3
Over 65,000 configurations supported!
Great for:• Storage consolidation• Multi-tier storage• Only paying for necessary dimension
© NEC Corporation of America
Upgrade from the D3
08121213
D3 D8 NodeD8 with Disk
Enclosure
Disk EnclosuresDisk Enclosures
• Start with a D3, with option to expand to a D8• Easy to grow from a D3• HDDs stay in place
© NEC Corporation of America
Resiliency
• Hardware redundancy– Neural cache
– Module redundancy
– Power double redundancy
• Multipathing
• Cache backup with flash card
• Self-healing Storage– Phoenix
– T10 DIF & EDIF
• Online maintenance– Module hot-swap (any)
– Online firmware upgrades
– Add nodes, modules online
– Add capacity online
08121214
© NEC Corporation of America
Higher Resiliency
15
Connectivity
Disk director
CacheNeural
MonolithicControllers
Traditional Architecture Nodal Architecture
Failure of any componentcripples performance(cache write-through)
Non-stop performance inevent of multiple failures
081212
© NEC Corporation of America
Resiliency: Neural Cache
16
Host director
Disk director
Cache
Node 1 Node 2
Node 3
Neural
Node 4
• Survives up to 75% cache module failures• Access any data from any port fewer switches
081212
© NEC Corporation of America
Resiliency: Redundant Hardware
08121217
Power Supply/Cache
Disk Director
Local SwitchDisk Director
or
Host Director
Host DirectorHost Director
Local Switch
Disk DirectorPower Supply/
CachePower Supply/
Cache
Fans
© NEC Corporation of America
Resiliency: Self-Healing Storage
18
• Reduces RAID rebuilds 30%-50%• Detects correctable HDD failures• Full performance, more of the time
Month 0 1 2 3 4 5 6 7 8 9
Phoenix
Technology
512B64 data sectors1 DIF sector512B 512B 512B 512B 512B
32KB blockData1 D2 D3 D63 D64 DIF
8B 8B 8B 8B 8B
D1DIF
D2DIF
D3DIF
D63DIF
D64DIF
Data CRC Location data Metadata
512B 65 sectors512B 512B 512B 512B 512B
32KB block
No checksumSATA
520B 520B 520B 520B 520B 520B 64 sectors
32KB block
512B data 8B DIF
FC/SAS
NEC SATA
DIF sector contains 64 DIFs correspondingto data sectors
Reduced RAID Rebuilds Extended Data Integrity
• Extends FC/SAS data integrity to SATA• Catches “silent data corruption”• Fewer application errors
18 081212
© NEC Corporation of America
Fan-out saves money
08121219
EMC® CX4-960
24 ports
64 ports
Requires $100,000 in switches to match D8
NEC D8
48 port switch
48 port switch
NetApp® FAS6000
32 ports
IBM® DCS9900
8 ports
IBM, NetApp, and EMC are registered trademarks of their respective companies
© NEC Corporation of America
Virtual Storage Partitioning
20
VMware®
10% CPU15% Mem
20% CPU25% Mem
40% CPU35% Mem
30% CPU25% Mem
VSP
10% Disk15% Cache
20% Disk25% Cache
40% Disk35% Cache
Shared Pool
30% Disk 25% Cache
• Consolidation of storage with centralized management• Guaranteed Quality of Service• Partition administrators
VMware is a registered trademark of VMware, Inc.20 081212
© NEC Corporation of America
NEC Dynamic Pools
• Dynamically add HDD one by one
• Dynamically grow/shrink LUNs in pool
• Capacity immediately available
• No performance hit– Combining metaLUNs is slow
• Performance similar to RAID-5
08121221
HDD#0
HDD#2
HDD#4
HDD#1
HDD#3
HDD#5
HDD#6Expansio
n
New Capacity
HDD#7Expansio
n
New Capacity
© NEC Corporation of America
RemoteDataReplication/DisasterRecovery
08121222
Primary DR/Backup CopyLog LUN
Data LUN
Log LUN
Data LUN
Multiple LUNs replicated in lock-step
Time Log LUN Data LUN
1 L1
2 D1
3 L2
4 D2
5 L3
6 D3
Log LUN Data LUN
D1
D2
D3
L1
L2
L3
Log LUN Data LUN
L1
D1
L2
D2
L3
D3
Without RDR/DR With RDR/DR
Dangerous situation if Primary goes down before logs replicate
© NEC Corporation of America08121223
Storage Manager (iSM)
Control multiple arrays centrally
Commands available as icons, keyboard shortcuts, and menus
© NEC Corporation of America
Local and Remote Replication
08121224
• “Semi-synchronous”– Asynchronous
replication for medium distances
– Continuous– All writes
• “Background Copy”– Asynchronous for long
distances– Periodic– Workload-based– Only delta changes
• Synchronous – Continuous– All writes– MV & RV in parallel
Source
Limited Distance
TargetData
MVAck RVAck
Data
MV = main volume RV = replica volume Ack = acknowledgement
Source
Long Distance
TargetData
MVAck RV
Data Data Data Data
Ack
© NEC Corporation of America08121225
DynamicSnapVolume (DSV)
• Snapshot: point in time volume image
• Snapshot up to 64 volumes per array
• Up to 16 snapshots per logical volume
• Snapshots stored in RAID-6 Snapshot Reserve Area
1
2
11:001
10:001
109:00
SRA
© NEC Corporation of America08121226
Restore Fast & Easy
Network
Business server Backup server Tape
Businessdata
LinkVolume
Relationshipsstored in
Link Volume
Link Volume
Physical destruction:
Restore fromBackup
Logical destruction:
Restore from Snapshot
Snapshot
© NEC Corporation of America08121227
Performance Management
• PerformanceMonitor– Real-time monitoring and reporting
– Gather performance data for later analysis
– Threshold set/detect for overloads
• PerformanceNavigator– Analysis of accumulated data
– Graphical comparative analysis
• PerformanceOptimizer– Automates data movement
to avoid hot spots
– Can migrate LUNs to other diskpools for storage tiering
© NEC Corporation of America
More than MAID: PowerConserver
08121228
Massive Arrays of Idle DisksPower down inactive disks – lower power and cooling
Disks can be stopped and started on-demand or periodically to save power
30-60% energy savings in secondary storage applications
More than MAID: Traditional MAID only allows a certain percentage of disks to spin at once. D-series can spin all disks as needed.
© NEC Corporation of America
More than WORM: Volume Protector
08121229
Retention Mode
Protection Protection StateRetention Period
Retention Mode
NormalCan be released at any time
Can be changed betweenRO NA
Can be changed
Can be changed to secure or strict
SecureCan be released after expiration
Can be changed betweenRO NA
Can only be extended
Can be changed to strict
StrictCan be released after expiration
Cannot be changed
Cannot be changed
Cannot be changed
Protection policies can be set on each logical disk
Protection Level
High
Low
RO = Read Only NA=Not Accessible
© NEC Corporation of America08121230
High Availability: PathManager
• Path Failover
RedundantPaths
LU0
LU1
Health Check
LU0
LU1
• Path Patrol
- Health Check
- Recovery Check
Dynamic LB
LU0
LU1
Static LB
LU0
LU1
• Load Balancing
- Static Load Balancing (SLB)
- Dynamic Load Balancing (DLB)
© NEC Corporation of America08121231
D8 Software Suite
Objective NEC Storage Software Function
Simple Operation StorageManager (iSM) Storage & access control
ReallocationControl Lock array configuration
Data Protection DynamicDataReplication Replication within same array
RemoteDataReplication Replication between arrays
RemoteDataReplication/DisasterRecovery Multi-LUN replication consistency
DynamicSnapVolume On-demand snapshots
ReplicationControl SQL Option Transaction-consistent snapshots
Performance Management
PerformanceMonitor Performance monitoring & alerts
PerformanceNavigator Analysis of data over time
PerformanceOptimizer Automates performance tuning
Energy Conservation PowerConserver More than MAID
Storage Consolidation VirtualStoragePartitioning Improve QoS and management control
Compliance VolumeProtector More than WORM
High Availability PathManager Multi-pathing for failover and load balancing
© NEC Corporation of America
D8 Enterprise Modular Storage
08121232
Economy- MAID- SATA drives- Drive intermix
Performance- Up to 128GB cache-15K RPM SAS- Cache provisioning
Resiliency- Neural cache- RAID-6, Triple Mirror- Path failover, load balancing
Manageability- Virtualization- WORM+- Enterprise software suite
Scalability- 216GB to 1,536,000GB- Up to 64 FC 4 Gbps ports- Virtual arrays
Flexibility- Nodal architecture- 65,000+ configurations- Dynamic Pools
Questions?