The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into

Transcription

1 The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle s products remains at the sole discretion of Oracle. 1

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3 <Insert Picture Here> OracleExadata 性能特性解析 杨中 Real World Performance Group Server Technologies

4 Agenda Exadata Overview Exadata Features <Insert Picture Here> 4

5 Exadata Overview 5

6 Exadata Overview - Hardware Architecture Database Grid 8 Dual-processor x64 database servers OR 2 Eight-processor x64 database servers InfiniBand Network Redundant 40Gb/s switches Unified server & storage network 14 High-performance low-cost storage servers 100 TB High Performance disk, or 336 TB High Capacity disk 5.3 TB PCI Flash Data mirrored across storage servers 6

7 Exadata Overview - Storage Server High-performance storage server built from industry standard components 12 disks GB RPM High Performance SAS or 2TB 7200 RPM High Capacity SATA 2 Six-Core Intel Xeon Processors (E5640) Dual ported 40 Gb/sec InfiniBand 4 x 96 GB Flash Cards Intelligent Exadata Storage Server Software 7

8 Exadata Overview - Performance 8

9 Exadata Features 9

10 Exadata Features Exadata Smart Scans 10X or greater reduction in data sent to database servers Exadata Storage Indexes Eliminate unnecessary I/Os Hybrid Columnar Compression Efficient compression increases effective storage capacity and increases user data scan bandwidths by a factor of up to 10X Exadata Smart Flash Cache Breaks random I/O bottleneck by increasing IOPs by up to 20X Doubles user data scan bandwidths I/O Resource Manager (IORM) Enables storage grid by prioritizing I/Os to ensure predictable performance 10

11 Exadata Features Smart Scan Traditional Database I/O and SQL Processing Model 11

12 Exadata Features Smart Scan Smart Scan Offload Processing 12

13 Exadata Features Smart Scan Smart Scan Predicate Filtering Smart Scan Column Filtering Smart Scan Join Processing(Bloom filter) Offload of SQL functions Other Exadata Smart Scan Processing: RMAN Incremental Backups, RMAN Restores and tablespace creation 13

14 Exadata Features Smart Scan Prerequisites cell_offload_processing = true (default) Direct path read Parallel Serial 14

15 Exadata Features Storage Indexes 15

16 Exadata Features Storage Indexes 1MB disk storage unit Transparent 7 columns per table can be built In memory structure Works with predicates <, <=, =,!=, >=, >, IS NULL, IS NOT NULL 16

17 Exadata Features Hybrid Columnar Compression EHCC is not pure columnar, it is hybrid columnar Multiple Levels of compression Query low Query high Archive Low Archive High Operation Database Servers Storage Servers Compression Always Never Decompression Non-Smart Scan Smart Scan 17

18 Exadata Features Smart Flash Cache PCI cards instead of disks avoids slow disk interface Data persistent over reboots Integrated database and storage software ensure only frequently used data is cached skips caching backup data skips caching mirror copy write data 18

19 Exadata Features Smart Flash Cache 19

20 Exadata Features I/O Resource Manager 20

21 The preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle s products remains at the sole discretion of Oracle. 21