DMX-3 Overview3/3/06

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DMX-3 AgendaCurrent DMX-2 Review;Architecture;Overview;Performance;Teradata Configurations;Cache Vault;Space Allocation;Coexistence;5400 Design Center;Contact Information and Additional Information;

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Current EMC DMX-2 Teradata Models for 5400

EMC ModelDMX 1000 M2DMX 2000 M2Large Clique Config: Two DMX 2000 M2NCR PID6291-1002-73006291-2000-73006291-2000-7300Disks73GB 15K RPM73GB 15K RPM73GB 15K RPMTeradata UseMPP: 1 or 2 nodesMPP: 2, 3, or 4 nodesMPP: 5,6,7 or 8 nodesRaidRaid-1 OnlyRaid-1 OnlyRaid-1 OnlyOperating EnvironmentMP-RAS & WindowsMP-RAS & WindowsMP-RAS & Windows

Maximum Teradata disks96192384Design Center Configuration48 / Node48 / Node48 / Node

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EMC DMX -3 ArchitectureHost Director Boards(i.e. FA)Up to 8Cache Director Boards Up to 8Disk Director Boards Up to 8

DD PairDD PairDD PairDD PairSystem CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk CabinetConfigurations are referred to in the following format:A X B X C whereA = Number of Host Director Boards (FAs)B = Number of Cache Director BoardsC = Number of Disk Director Boards (DAs)

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DMX-3 Product OverviewStorage baySystem bayStorage bayStorage baySystem baySecond-generation Direct Matrix Architecture128 GB/stwice the matrix bandwidth of Symmetrix DMX-2Eight 1.3 GHz PPC processors per directorDelivers up to twice the IOPS and MB/s of the Symmetrix DMX-2 directorUp to 512 GB Global Memory (256 GB useable)Redundant Global Memory and PowerVault protectionSymmetrix DMX-3 incremental scalabilityOnline expansion of capacity and performance as requirements increaseMinimum configuration consists of a single System bay and a single Storage bayTarget GCA MP-RAS: March 06 Windows: May 06Linux: April 06 (>4 Node release)

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EMC DMX -3 ArchitectureHost Director Boards(i.e. FA)Up to 8Cache Director Boards Up to 8Disk Director Boards Up to 8

DD PairDD PairDD PairDD PairSystem CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk Cabinet

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PerformanceActive Raid-1 Disk Pairs

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DMX-3 Teradata Configurations

Config-uration# of Nodes5400 or 5450 Choosing Calculator Tool SelectionsFAxMemxDAMin # Data driveMax # Teradata drivesSFS drivesSpares drivesFAFibre Channel Director (front end)Memory/CacheDirectorDAPairDisk Director (back end)SystemCabinet/BayStorage Cabinet/BayStorage CabinetDrive EnclosureSystem Cabinet/Bay PowerModulePower cableThree Phase DeltaAC connectorFibre Channel Cables11 - 22 x 4 x 2361162224 x 16GB11112244 per nodeF301F301F302F302F503F402F6013001 or 3002 *F101 or F102*F201F090F071 or F072*F081F94823 - 42 x 6 x 41202362226 x 16GB11122244 per nodeF301F301F302F302F503F402F6023001 or 3002 *F101 or F102*F201F090F071 or F072*F081F94835 - 64 x 8 x 62003542448 x 16GB11233364 per nodeF301F301F302F302F503F402F6033001 or 3002 *F101 or F102*F201F090F071 or F072*F081F94847 - 84 x 8 x 82804742448 x 16GB11244364 per nodeF301F301F302F302F503F402F6043001 or 3002 *F101 or F102*F201F090F071 or F072*F081F948

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DMX-3 Teradata Clique ConfigurationsConfig #23-4 NodeConfigurationConfig #11-2 NodeConfigurationConfig #35-6 NodeLarge CliqueConfigurationConfig #47-8 NodeLarge CliqueConfigurationEach configuration has been designated for a specificnumber of nodes. Basedon the maximum numberof disks in these configurations, it is technically possible to support more nodesbut not with acceptableperformance. The number of nodes specified shouldnot be exceeded.

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Cache VaultCache Vault Area on disk utilized by EMC for quickly flushing its cache in the event of a power failure;

EMC cache sizes have become so big that they no longer have enough battery power to write out the entire cache contents block-by-block to their proper location in the event of a power failure.

The cache vault is an area on disk where EMC can use large block sequential I/Os to quickly write out the contents of cache.Prior to EMC beginning its cache flush, Teradata is given 3 minutes to flush its cache;5 GB per disk on the first 32 disks per DA-Pair (per each 120 disk module) See next slideIn a Teradata system, 5 GB will effectively be lost on each disk due to parallelism;

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Vault DrivesHost Director BoardsUp to 8Cache Director Boards Up to 8Disk Director Boards Up to 8

DD PairDD PairDD PairDD PairSystem CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk CabinetUp to 120 DisksUp to 120 DisksDisk Cabinet5GB from 1st 32disks used for cache vault5GB from 1st 32disks used for cache vault5GB from 1st 32disks used for cache vault5GB from 1st 32disks used for cache vault

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Space AllocationDMX-273GB disks are divided into four 18GB partitions;Each disk has two 18GB LUNs (PDisks);DMX-373GB disks are divided into one 5GB vault partition plus two 34GB partitions;Each disk has one 34GB LUNs (PDisk);Why does DMX-3 use larger LUN sizes?EMC now supports larger LUN sizes;With higher capacity arrays, larger LUNs are required to keep total LUN count below 256 per port (MP-RAS limit);

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Impact of Vaulting on Space Allocation73GB disks are effectively 68GB in the Teradata environment; (6.8% reduction in usable storage)

Choosing calculator will calculate MaxPerm based on 68GB drive capacity;

Coexistence:Balancing capacity between old cliques with DMX-2 and new Cliques with DMX-3 will take some extra attention (See following slides for details);

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DMX-2 and DMX-3 Coexistence Example Example:Old clique 5400 with DMX-2000New clique 5400 with DMX-3

DMX2000192 x 73GB disks(for Teradata)

MaxPerm = 6366 GB199 GB / AMPOption #1

DMX-3192 x 73GB disks(for Teradata)

MaxPerm = 5971 GB187 GB / AMPOld Clique4 x 5400New Clique4 x 5400Option #2One extra diskPer AMP

DMX-3224 x 73GB disks(for Teradata)MaxPerm = 6966 GB218 GB / AMPNew Clique4 x 5400Options with DMX-3

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Coexistence ChoiceDue to the space requirements for the DMX-3 Vault, balancing the capacity between old cliques with DMX-2 and new cliques with DMX-3 will not be possible without some amount of unused capacity.

Space / Cost optimization depends on size of the old portion of the system versus the new;

Option #1: Configure with equivalent disks between old and new cliques; Approximately 6% of old system capacity will no longer be available after the coexistence portion of the system is configured (No existing data will be lost); Best option when the size of the expansion is larger than the existing system and data space is not an issue.

Option #2: Configure with one extra disk per AMP on the new clique. Approximately 8% of new capacity will be inaccessible; Best option when the existing system is large and the expansion is small.

Choosing calculator will accurately show capacity in coexistence environment.

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Design Center Recommendations - EMCDramatic PerfC improvement with DMX-3 due to fewer disks per node required (more bandwidth delivered per disk) and cache vaulting which effectively caps 73GB disks at 68GB.5400 w/DMX-2Per Clique: MaxPerm:1592 GB / Node TPerf:9.15 PerfC:.575400 Node 15400 Node 45400 Node 35400 Node 25400 w/DMX-35400 Node 15400 Node 45400 Node 35400 Node 22 - Host Director BoardsCache Director Boards6 x 16GBDisk Director 2-Pairs

DD PairDD PairSystem Cabinet40 73GB 15K per node

160 Disks per ArrayDisk Cabinet48 -73GB 15K per node

192 Disks per arrayPer Clique: MaxPerm:1244 GB / Node TPerf:10.23 PerfC:.82

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Contact Information and Additional InformationContact Information:Ron Yellin(858) 485-3116 ron.yellin@ncr.comPatsy Martin(858) 485-2618 patsy.martin@ncr.com

Additional Information:Ordering and Configuration InformationNCR 6293: EMC Disk Array Symmetrix DMX-3https://www.my.ncr.com/cgi-bin/ncr4me/ncr4me/ep/assetDetail.do?assetID=KM007504

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