XtremIO Flash Memory, Performance & endurance

Transcription

1 Madis Pärn Senior System Engineer EMC 1

2 History February 2000? What Intel CPU was in use? First 15K HDD 32-bit, 1C (4C/server), 1GHz, 4GB RAM What about today? 64-bit, 15C (120C/server), 2.8GHz, 12TB RAM 2

3 FLASH REDEFINES EVERYTHING BUT IS DIFFERENT 3

4 XtremIO All-Flash Scale-Out Arrays 10 TB X-BRICKS 20 TB X-BRICKS TB Per Cluster Physical Capacity TB Per Cluster Physical Capacity UP TO 1,000,000 FULLY RANDOM IOPS Over 250 TB Logical Capacity Thin Provisioning Inline Data Reduction XDP 4

5 Scale-Out from 2 8 Controllers Up to 128 Cores! Handle any OLTP, Virtual Server, VDI workload ALL DATA SERVICES ACTIVE 150K MIXED IOPS 250K READ IOPS GLOBAL INLINE DATA REDUCTION Two X-Brick Cluster Four X-Brick Cluster 600K MIXED IOPS 1M READ IOPS One X-Brick System SCALE-OUT <1MS LATENCY. RICH DATA SERVICES. NO TUNING. 5

6 XtremIO X-Brick Cluster Building Block SP A SP B 32 CPU CORES 256GB RAM InfiniBand RDMA 256GB RAM 512 GB RAM 2 x FC 2 x iscsi SAS 2.0 SAS HOST PORTS 2 x FC 2 x iscsi 25 emlc SSDs 6

7 X-Brick 1 SHARED MEMORY METADATA Unique User Data SHARED MEMORY METADATA SHARED MEMORY METADATA Unique User Data SHARED MEMORY METADATA X-Brick 3 RDMA Fabric SHARED MEMORY METADATA Unique User Data SHARED MEMORY METADATA X-Brick 4 SHARED MEMORY METADATA Unique User Data SHARED MEMORY METADATA X-Brick 2 7

8 IT IS NOT ABOUT FLASH! 8

9 1858: Internal combustion engine invented 1980: Flash memory invented Jean Joseph Étienne Lenoir 1885: First internal combustion vehicle ~2010: REDEFINE First Flash Arrays Gottlieb THE POSSIBLE Daimler & Wilhelm Maybach 1903: The first powered aircraft 2013: Next Generation All-Flash Arrays Orville & Wilbur Wright 9

10 CONTENT BASED DATA PLACEMENT Scale-out. Inherent balance. Data reduction. XtremIO s Unique Architecture DUAL-STAGE METADATA ENGINE Consistent. Predictable. No system-level garbage collection. XTREMIO DATA PROTECTION Superior capacity, endurance, performance. SHARED IN-MEMORY METADATA Zero impact copy services. 10

11 XtremIO Flash-Optimized Data Services INLINE DATA REDUCTION THIN PROVISIONING DATA PROTECTION WRITABLE SNAPSHOTS XDP Never Write Duplicate Data 4KB Allocations Optimal Utilization Flash-Optimized Zero Configuration Instant Copies Full Performance 11

12 963FE7B CA38C90 134F F7A 963FE7B F3AFBA3 AB45CB A8 XtremIO Content Engine INCOMING DATA STREAM (32K) 4K 4K 4K 4K 4K 4K 4K 4K RANDOMIZE LOCATIONS FIND MATCHES 12

13 XtremIO Inline Data Reduction Lowers Effective Cost While Increasing Performance and Reliability Always on, inherent function Scales-out Truly inline, global, always on Improves array performance Lowers $/GB Extends flash endurance 13

14 Thin Provisioning Optimal 4KB Allocation No Waste, Ever Always thin provisioned 100% performance Perfect 4KB allocation granularity No fragmentation or reclamation penalty 14

15 XtremIO Data Protection (XDP) No configuration No hot spares SSDs may fail in place Adapts to failures 15

16 XtremIO Data Protection XDP RAID 1 RAID 5 RAID 6 RAID 5/RAID 6 Combo Capacity Overhead 8% 50% 25% 20% 30% SUPERIOR USABLE CAPACITY Write I/O Overhead (stripe update) (64%) 2 (64%) 3 (146%) 5 (310%) UP TO 4X BETTER ENDURANCE Read I/O Overhead (stripe update) (64%) 3 (146%) 5 (310%) UP TO 4X BETTER PERFORMANCE 16

17 XDP Rebuilds and Hot Space Allows SSDs to Fail-in-Place Rapid, distributed, content-aware rebuilds No performance impact after rebuild completes for up to six failed SSDs per X-Brick 5 5 failed SSDs ~330K IOPS 5 17

18 Functional IOPS vs. Hero Numbers Measured end-to-end at the host 100% random All flash pages non-zero Array filled to 80% forcing overwrites Any size LUNs, any LBA range Mixed read/write I/O ALL DATA SERVICES ACTIVE! Increasing thread counts Extended time periods 18

19 Full VMware VAAI Easy-to-manage multi-tb volumes Accelerated formatting Enhanced copy services (VAAI + Inline Data Reduction + In-memory metadata) 19

20 XtremIO Configuration One Screen: Zero Planning, Zero Tuning 1 CREATE VOLUMES 3 2 MAP VOLUMES CREATE INITIATOR GROUPS 20

21 VMware Hands-On Labs The maximum IOPS seen by any of the XtremIO X-Bricks was 50,000 less than 1/3 of its overall performance potential. Uptime: 100% The workload is so strenuous that in years past the HoL has experienced outages. Nothing of the sort this year. Total labs taken: 9,587 Total number of VMs delivered: 85,

22 VNX-F All Flash Array Based on the industry-leading, enterprise-proven VNX Low Flash $/GB UP TO 500,000 IOPS SCALES TO 41 TBs 22

23 XPECT MORE 23

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