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IBM FlashSystem 840 UA
- 1. 丐亠于舒仆仆 IBM FlashSystem 840 1 丐亠于舒仆仆 IBM FlashSystem 840 仂仆亞舒 亠仂于仂 IBM FlashSystem 840: - 丕 仆舒磦仆仂 8 Flash Module eMLC (仄仂亢仍亳于仂 亟仂 12Flash Module) 2TB (舒 仆舒仗舒于亟 1,87TB), 1 亰 磻亳 - hotspare, 仆 7 亰弍舒仆仂 于 R5 - host interfaces 8x8Gb FC (仄仂亢仍亳于仂 亟仂 16x8Gb FC) 舒亟亠从仍舒仂于舒仆舒 于亠仆亟仂仂仄 仗仂亟从亳于仆 IBM FlashSystem 840 亟仂 775K iops, 弍仍仂从舒仄亳 4KB 100%Random, 70%/30% Read/Write. 仂于亠亟亠仄仂 亠于舒仆仆 亟仍 于亳亰仆舒亠仆仆 舒从亳仆仂 亟仂礀仆亳 仗仂从舒亰仆亳从于 仗仂亟从亳于仆仂 IBM FlashSystem 840 仆舒磦仆亶 从仂仆亞舒 (仍从亳 8Flash Module 亰 12-亳). 丕 亠仂于仂仄 仍舒仆亟舒 32LU IBM FlashSystem 840 弍仍亳 仗亠亰亠仆仂于舒仆 (亠亠亰 FC-SAN) 亟于仂仄 亠于亠舒仄 IBM POWER System S822 (48Gb FC 于 从仂亢仆仂仄 亠于亠, 舒亰仂仄 - 8x8Gb FC, 仂弍仂 亰舒亞舒仍仂仄 仍从亳 亢 磻 于 IBM FlashSystem 840) 仗仂 16LU 仆舒 亠于亠. 弌亠于亠亳 IBM POWER System S822 于亳从仂亳仂于于舒仍亳 亰 Dual VIOS 舒 FC NPIV. 舒 从仂亢仆仂仄 亠仂于仂仄 亠于亠/LPAR, LU 弍仍亳 亰弍舒仆 于 舒亶仗 亰舒 亟仂仗仂仄仂亞仂 AIX LVM. 舒仆 弍仍亳 仂亰仄亠仆 仆舒 舒亶仍仂于亶 亳亠仄 JFS2 亰 inline log 舒 仂仗礆亳 noatime, cio. 个舒亶仍仂于舒 亳亠仄舒 (仂亰仄仂仄 4丐) 弍仍舒 亰舒仗仂于仆亠仆舒 亟舒仆亳仄亳 >80%, 亟仍 仗仂亟舒仍仂亞仂 亠于舒仆仆 于亳从仂亳仂于于舒于 于亠 亠亶 仂弍磪 亟舒仆亳. 亠亳亶 亠 仆舒 仍仆亶仆 于亳亟从 亳舒仆仆 仗仂亟亠仄仂仆于舒于 仗仂亟从亳于仆 - 弍仍亠 5GBps (亟亳于. Diagram 1) Diagram 1
- 2. 丐亠于舒仆仆 IBM FlashSystem 840 2 舒仗仆亳亶 亠 仆舒 于亳亟从 亰舒仗亳 仗仂亟亠仄仂仆于舒于 仗仂亟从亳于仆 仄舒亶亢亠 2GBps (亟亳于. Diagram 2) Diagram 2 丐亠 弍舒亞舒仂仗仂仂从仂于仂亞仂 仆舒于舒仆舒亢亠仆仆 - 100% Random, 仗于于亟仆仂亠仆仆 Read/Write=80/20, 仂亰仄 弍仍仂从 4KB 仗仂亟从亳于仆 弍仍亠 500K iops (亟亳于. Diagram 3) Diagram 3
- 3. 丐亠于舒仆仆 IBM FlashSystem 840 3 仂于仂亳仄仂 亠 弍舒亞舒仂仗仂仂从仂于仂亞仂 仆舒于舒仆舒亢亠仆仆 - 100% Random, 仗于于亟仆仂亠仆仆 Read/Write=80/20, 亰仄仆ﾑﾑ亳 仂亰仄 弍仍仂从 亟舒仆亳 (Diagram 4 仗仂亟从亳于仆 于 iops, Diagram 5 于亟仗仂于亟仆亳亶 舒 于亟亞从 仆舒 亠于亠 亟亳从仂于仂 仗亟亳亠仄亳 于 ms). 4KB 8KB 16KB 32KB 64KB 128KB IBM FlashSystem 840 507724 325057 174311 90340 45839 23059 0 100000 200000 300000 400000 500000 600000 IOPS Diagram 4 - IBM FlashSystem 840 100% Random, Read/Write= 80/20 0 5 10 15 20 25 4KB 8KB 16KB 32KB 64KB 128KB ms 4KB 8KB 16KB 32KB 64KB 128KB IBM FlashSystem 840, write ms 0.6 1.1 2.9 7.6 16.2 31 IBM FlashSystem 840, read ms 1.2 2.4 4.8 9.6 18.8 34.5 Diagram 5 - IBM FlashSystem 840 average latency
- 4. 丐亠于舒仆仆 IBM FlashSystem 840 4 亟仍 仆舒仗仆仂亞仂 亠 亰舒仍亳亳仄仂 仂亰仄 弍仍仂从 亟舒仆亳 仆亠亰仄仆仆亳仄 8KB, 舒 亰仄仆ﾐ火委亳 弍亟亠仄仂 仗于于亟仆仂亠仆仆 Read/Write. 亊从 于亳亟仆仂 仆舒 Diagram 6 仄舒从亳仄舒仍仆舒 仗仂亟从亳于仆 弍仍舒 亟仂磪仆舒 仆舒 仗于于亟仆仂亠仆仆, 于亟仄仆仆仂仄 于亟 100% Read. 100% Write 10% Read 90% Write 20% Read 80% Write 30% Read 70% Write 40% Read 60% Write 50% Read 50% Write 60% Read 40% Write 70% Read 30% Write 80% Read 20% Write 90% Read 10% Write 100% Read IBM FlashSystem 840 187480 199834 213311 226443 241190 257174 274482 296792 325265 385369 378269 0 50000 100000 150000 200000 250000 300000 350000 400000 450000 IOPS Diagram 6 - IBM FlashSystem 840 100% Random, Read/Write= 0/100-100/0
- 5. 丐亠于舒仆仆 IBM FlashSystem 840 5 舒亟舒仍 仂亰亞仍礌亠仄仂 舒从亳亶 舒仗亠从 磻 亰仄仆亳 仗仂亟从亳于仆 IBM FlashSystem 840 仗亟 舒 仂仆仂于仍亠仆仆 firmware? 亠仆亟仂亳 亰舒于亢亟亳 亠从仂仄亠仆亟ﾑ 于亳从仂仆于舒亳 仂仆仂于仍亠仆仆 firmware 仗亟 舒 仆舒亶仄亠仆仂亞仂 仆舒于舒仆舒亢亠仆仆, 舒仍亠 仆从仂仍亳 仆亠 仂仆ﾑﾑ, 仂 舒仄亠 仗亟 亳仄 仂亰仄ﾑ 1K iops, 10K iops, 100K iops? 亞亠仆亠仄仂 仆舒于舒仆舒亢亠仆仆 弍仍亳亰从仂 ~100K iops - 100% Random, 仗于于亟仆仂亠仆仆 Read/Write=80/20, 仂亰仄 弍仍仂从 8KB, 舒 仗仂仆亠仄仂 仂亟仆仂舒仆仂 仂仆仂于仍亠仆仆 firmware 仆舒 IBM FlashSystem 840. 亊从 于亳亟仆仂 仆舒 Diagram 7 舒 8, 亰仆亳亢亠仆仆 仗仂亟从亳于仆仂 仗仂 从仍从仂 iops 亟亢亠 从仂仂从仂舒仆亠 (弍亠亰仗仂亠亠亟仆仂 仗亟 舒 仂仆仂于仍亠仆仆 从仂仆仂仍亠于, 弍仍 亟亠舒仍仆仂/online 亟舒仆舒 亳舒 亰仂弍舒亢亠仆舒 仆舒 Diagram 9 ), 舒 仆亠亰仆舒仆亠 亰弍仍亠仆仆 舒 于亟亞从 于亟弍于舒 仗亟 舒 于亠亳从舒 RAID stripes. Diagram 7 Diagram 8 0 20000 40000 60000 80000 100000 120000 140000 16:10 16:16 16:21 16:27 16:32 16:38 16:43 16:49 16:54 17:00 17:05 17:11 17:16 17:22 17:27 17:33 17:38 17:44 17:49 17:55 18:00 18:06 18:11 18:17 18:22 18:28 18:33 18:39 18:44 18:50 18:55 19:01 19:06 Disk xfers IO/sec 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 16:10 16:16 16:21 16:27 16:32 16:38 16:43 16:49 16:54 17:00 17:05 17:11 17:16 17:22 17:27 17:33 17:38 17:44 17:49 17:55 18:00 18:06 18:11 18:17 18:22 18:28 18:33 18:39 18:44 18:50 18:55 19:01 19:06 Disk Service Time msec/xfer
- 6. 丐亠于舒仆仆 IBM FlashSystem 840 6 Diagram 9
- 7. 丐亠于舒仆仆 IBM FlashSystem 840 7 磻 亰舒 于舒亞! 仍亠亞 仂仂仍 亳仂仗舒亟 2014 http://ua.linkedin.com/pub/oleg-korol/26/920/716/