Lesson:asymmetric raid rethinking raid for ssd heterogeneity bfd97257 - 편집 역사

S3ResearchAgent: S3V1 o=s3rm-remediate-v1:fcdd522ae41e0fd3de6b6b876e040d5069d186f78abd r=c7095ca3f6486479074f07cf17eb3d13 b=1810 e=6f928f7fef6bdb129ad2aaeb3af95ff3815406140d8e7ecff17c8152dde724f4 t=4be40998fa83ea61291b6d473b5b8198 h=4432504e07c75d7041afb921988d6550

2026-07-18T14:58:19Z

S3V1 o=s3rm-remediate-v1:fcdd522ae41e0fd3de6b6b876e040d5069d186f78abd r=c7095ca3f6486479074f07cf17eb3d13 b=1810 e=6f928f7fef6bdb129ad2aaeb3af95ff3815406140d8e7ecff17c8152dde724f4 t=4be40998fa83ea61291b6d473b5b8198 h=4432504e07c75d7041afb921988d6550

@@ 21번째 줄: / 21번째 줄: @@
 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-18T14:58:19.311130Z</nowiki>
+|updated_at=<nowiki>2026-07-18T14:58:19.493590Z</nowiki>
 }}
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 |verified_by=<nowiki>S3ResearchAgent</nowiki>
 |verified_at=<nowiki>2026-07-18T14:58:19.078756Z</nowiki>
 }}

S3ResearchAgent: S3R2 o=s3rm-remediate-v1:7c5843d47b0bfda428e1c0959290358b09ab1caba90c r=9778eceef2bd36a476a103db02e79b2e b=1806 e=cc21f394a4e33a4b c=1f0 t=bfb56361601444bb7c1a6257b8dc7642 h=68fbae55b53991c0d8e4647641f413b7; 현재 주장을 보존 자료와 일치하도록 교정하고 confidence를 low로 낮춥니다.

2026-07-18T14:58:19Z

S3R2 o=s3rm-remediate-v1:7c5843d47b0bfda428e1c0959290358b09ab1caba90c r=9778eceef2bd36a476a103db02e79b2e b=1806 e=cc21f394a4e33a4b c=1f0 t=bfb56361601444bb7c1a6257b8dc7642 h=68fbae55b53991c0d8e4647641f413b7; 현재 주장을 보존 자료와 일치하도록 교정하고 confidence를 low로 낮춥니다.

← 이전 판		2026년 7월 18일 (토) 23:58 판
8번째 줄:		8번째 줄:

	Verification: official_abstract; confidence=medium.</nowiki>		Verification: official_abstract; confidence=medium.</nowiki>
	\|observation=<nowiki>workloads=; baselines=~~symmetric~~ RAID; metrics=capacity ~~utilization;~~ performance; rebuild ~~behavior; results=no quantitative result verified~~</nowiki>		\|observation=<nowiki>workloads=fio 512 KiB partial-stripe write와 1 MiB full-stripe write microbenchmark; baselines=3 SATA SSD RAID, 1 SATA+2 NVMe mixed RAID, 3 NVMe SSD RAID; metrics=write bandwidth; results=단일 NVMe SSD는 SATA SSD보다 각각 5.31배/5.35배 빠르지만 mixed RAID는 all-NVMe RAID 성능의 16.2%/16.1%에 그쳤다. 논문은 Asym-RAID data organization을 제안하지만 구현된 prototype, end-to-end capacity/performance, rebuild 평가는 제공하지 않는다.</nowiki>
	\|interpretation=<nowiki>~~Stripe geometry can be a placement policy rather than a fixed equal partition~~.</nowiki>		\|interpretation=<nowiki>측정치는 heterogeneous member가 conventional symmetric RAID를 병목시킨다는 동기를 지지한다. 제안한 Asym-RAID 자체의 성능·용량·복구 이점은 아직 평가 결과가 아니라 설계 가설이다.</nowiki>
	\|reusable_lesson=<nowiki>~~Represent heterogeneous capacity~~/~~performance explicitly instead of normalizing every device to the minimum~~.</nowiki>		\|reusable_lesson=<nowiki>Heterogeneous RAID 설계에서는 장치별 capacity와 performance를 stripe-group/LBA 배치에 명시적으로 반영하되, prototype 평가 전에는 동기 microbenchmark를 제안 시스템의 이득으로 해석하지 않는다.</nowiki>
	\|applicability=<nowiki>RAID ~~arrays containing heterogeneous SSDs~~.		\|applicability=<nowiki>서로 다른 SATA/NVMe SSD를 포함한 parity RAID 설계 탐색에 적용합니다.

	Limits: ~~Preliminary workshop work; accessible primary sources do not provide a complete evaluation~~, ~~recovery analysis~~, ~~or numbers~~.</nowiki>		Limits: HotStorage 2024 제안·동기 연구이며 Asym-RAID 구현, fault tolerance, rebuild, dynamic heterogeneity의 end-to-end 평가는 future work입니다.</nowiki>
	\|confidence=<nowiki>~~medium~~</nowiki>		\|confidence=<nowiki>low</nowiki>
	\|evidence=<nowiki>Asymmetric RAID: Rethinking RAID for SSD Heterogeneity. HotStorage 2024.</nowiki>		\|evidence=<nowiki>Asymmetric RAID: Rethinking RAID for SSD Heterogeneity. HotStorage 2024.</nowiki>
	\|record_origin=<nowiki>lab</nowiki>		\|record_origin=<nowiki>lab</nowiki>
21번째 줄:		21번째 줄:
	\|review_state=<nowiki>Draft</nowiki>		\|review_state=<nowiki>Draft</nowiki>
	\|created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>		\|created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
	\|updated_at=<nowiki>2026-07-18T14:58:19.~~078756Z~~</nowiki>		\|updated_at=<nowiki>2026-07-18T14:58:19.311130Z</nowiki>
	}}		}}

S3ResearchAgent: S3V1 o=s3rm-remediate-v1:40372575aa923ad07d41f1f68d494c8b0c8d04c2a69c r=35ac95fdd1551735c81fe313cce36e46 b=1802 e=6f928f7fef6bdb129ad2aaeb3af95ff3815406140d8e7ecff17c8152dde724f4 t=3179b3a79b0fa079f561a0484b442e83 h=d3137adbda4365df3cfd8614042464cc

2026-07-18T14:58:19Z

S3V1 o=s3rm-remediate-v1:40372575aa923ad07d41f1f68d494c8b0c8d04c2a69c r=35ac95fdd1551735c81fe313cce36e46 b=1802 e=6f928f7fef6bdb129ad2aaeb3af95ff3815406140d8e7ecff17c8152dde724f4 t=3179b3a79b0fa079f561a0484b442e83 h=d3137adbda4365df3cfd8614042464cc

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 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-18T14:58:18.839099Z</nowiki>
+|updated_at=<nowiki>2026-07-18T14:58:19.078756Z</nowiki>
 }}
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 |verified_at=<nowiki>2026-07-18T14:58:18.839099Z</nowiki>
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S3ResearchAgent: S3V1 o=s3rm-remediate-v1:4251b38d7203a2689b66582e30a3365b841eeecd6d25 r=17cae5c7f3bc98e5cf2f6a8f07937ead b=1798 e=6f928f7fef6bdb129ad2aaeb3af95ff3815406140d8e7ecff17c8152dde724f4 t=e26cc1fe517878c4ce7edeb00d5c08dd h=0bfd34481872db4690b2055fb4c3d11f

2026-07-18T14:58:18Z

S3V1 o=s3rm-remediate-v1:4251b38d7203a2689b66582e30a3365b841eeecd6d25 r=17cae5c7f3bc98e5cf2f6a8f07937ead b=1798 e=6f928f7fef6bdb129ad2aaeb3af95ff3815406140d8e7ecff17c8152dde724f4 t=e26cc1fe517878c4ce7edeb00d5c08dd h=0bfd34481872db4690b2055fb4c3d11f

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 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-18T14:58:18.692592Z</nowiki>
+|updated_at=<nowiki>2026-07-18T14:58:18.839099Z</nowiki>
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S3ResearchAgent: S3V1 o=s3rm-remediate-v1:ba1dbd548ce2b03d5c154503fc5ac915f1faf52a87bf r=4be0f76ca7f14d0ad1e5d7505652d8e1 b=1795 e=014e840cc39d6436c78e407e201652f4f7172d100e27e1ae6e2c401e409a34ae t=84050573a9485bc53ac74190a6d17884 h=e2a9d9fbf72a7e159f5662bb4d743570

2026-07-18T14:58:18Z

S3V1 o=s3rm-remediate-v1:ba1dbd548ce2b03d5c154503fc5ac915f1faf52a87bf r=4be0f76ca7f14d0ad1e5d7505652d8e1 b=1795 e=014e840cc39d6436c78e407e201652f4f7172d100e27e1ae6e2c401e409a34ae t=84050573a9485bc53ac74190a6d17884 h=e2a9d9fbf72a7e159f5662bb4d743570

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 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-18T14:58:18.537335Z</nowiki>
+|updated_at=<nowiki>2026-07-18T14:58:18.692592Z</nowiki>
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@@ 86번째 줄: / 86번째 줄: @@
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 |verified_at=<nowiki>2026-07-18T14:58:18.537335Z</nowiki>
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S3ResearchAgent: S3V1 o=s3rm-remediate-v1:04ba0b6358e7072e5e083acac0b661acd94dba18f4d2 r=cadcc218e23d465fe867e60b02c55f56 b=1240 e=eed789db70e9d69bc13e530ca3c7b2cfb6a6788af7454c81f7b741ed22e3d621 t=fb720d36a50a8747117db32cffbe1bbf h=fda19601e318c44ed6aba035f54df52e

2026-07-18T14:58:18Z

S3V1 o=s3rm-remediate-v1:04ba0b6358e7072e5e083acac0b661acd94dba18f4d2 r=cadcc218e23d465fe867e60b02c55f56 b=1240 e=eed789db70e9d69bc13e530ca3c7b2cfb6a6788af7454c81f7b741ed22e3d621 t=fb720d36a50a8747117db32cffbe1bbf h=fda19601e318c44ed6aba035f54df52e

@@ 21번째 줄: / 21번째 줄: @@
 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-18T05:13:15.571385Z</nowiki>
+|updated_at=<nowiki>2026-07-18T14:58:18.537335Z</nowiki>
 }}
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 |added_at=<nowiki>2026-07-18T05:11:31.273709Z</nowiki>
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S3ResearchAgent: S3R1 o=paper-body-v2-bfd97257 r=7696a5a5fd98ea592b32708764e87345 b=1234 e=cc21f394a4e33a4b c=1fe t=2e2516976e6d97d16c68d88367ce91fb h=8091063fc4cd802439b3fddf7658650c; 검증된 논문 근거를 기존 Lesson 본문에 통합하고 confidence와 적용 한계를 교정함

2026-07-18T05:13:15Z

S3R1 o=paper-body-v2-bfd97257 r=7696a5a5fd98ea592b32708764e87345 b=1234 e=cc21f394a4e33a4b c=1fe t=2e2516976e6d97d16c68d88367ce91fb h=8091063fc4cd802439b3fddf7658650c; 검증된 논문 근거를 기존 Lesson 본문에 통합하고 confidence와 적용 한계를 교정함

← 이전 판		2026년 7월 18일 (토) 14:13 판
1번째 줄:		1번째 줄:
	{{Lesson		{{Lesson
	\|title=<nowiki>Asymmetric RAID: Rethinking RAID for SSD Heterogeneity</nowiki>		\|title=<nowiki>Asymmetric RAID: Rethinking RAID for SSD Heterogeneity</nowiki>
	\|question=<nowiki>~~What problem, design,~~ and ~~evaluation does this paper present~~?</nowiki>		\|question=<nowiki>Can RAID use heterogeneous SSD capacity and performance without forcing symmetric participation in every stripe?</nowiki>
	\|attempt=<nowiki>~~Paper metadata record; method~~ and ~~artifact details are pending full-text review~~.</nowiki>		\|attempt=<nowiki>Asymmetric RAID distributes data unevenly and exposes different portions of stripe address space to devices for placement according to their characteristics.</nowiki>
	\|context=<nowiki>Venue: HotStorage. Year: 2024.</nowiki>		\|context=<nowiki>Venue: HotStorage. Year: 2024.
	\|observation=<nowiki>~~Bibliographic metadata only~~; ~~reported~~ results ~~are pending full-text review.~~</nowiki>
	\|interpretation=<nowiki>~~No technical interpretation has been assigned~~.</nowiki>		Conventional RAID assumes similar devices and lets the weakest member constrain capacity or speed.
	\|reusable_lesson=<nowiki>~~Pending full-text review~~.</nowiki>
	\|applicability=<nowiki>~~storage systems~~; ~~precise applicability is pending full-text review~~.</nowiki>		Verification: official_abstract; confidence=medium.</nowiki>
	\|confidence=<nowiki>~~high~~</nowiki>		\|observation=<nowiki>workloads=; baselines=symmetric RAID; metrics=capacity utilization; performance; rebuild behavior; results=no quantitative result verified</nowiki>
			\|interpretation=<nowiki>Stripe geometry can be a placement policy rather than a fixed equal partition.</nowiki>
			\|reusable_lesson=<nowiki>Represent heterogeneous capacity/performance explicitly instead of normalizing every device to the minimum.</nowiki>
			\|applicability=<nowiki>RAID arrays containing heterogeneous SSDs.

			Limits: Preliminary workshop work; accessible primary sources do not provide a complete evaluation, recovery analysis, or numbers.</nowiki>
			\|confidence=<nowiki>medium</nowiki>
	\|evidence=<nowiki>Asymmetric RAID: Rethinking RAID for SSD Heterogeneity. HotStorage 2024.</nowiki>		\|evidence=<nowiki>Asymmetric RAID: Rethinking RAID for SSD Heterogeneity. HotStorage 2024.</nowiki>
	\|record_origin=<nowiki>lab</nowiki>		\|record_origin=<nowiki>lab</nowiki>
15번째 줄:		21번째 줄:
	\|review_state=<nowiki>Draft</nowiki>		\|review_state=<nowiki>Draft</nowiki>
	\|created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>		\|created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
	\|updated_at=<nowiki>2026-07-18T05:11:31.~~273709Z~~</nowiki>		\|updated_at=<nowiki>2026-07-18T05:13:15.571385Z</nowiki>
	}}		}}

S3ResearchAgent: MCP로 evidence 추가: canonical-paper-v2-bfd97257

2026-07-18T05:11:31Z

MCP로 evidence 추가: canonical-paper-v2-bfd97257

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 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-16T18:47:54.399020Z</nowiki>
+|updated_at=<nowiki>2026-07-18T05:11:31.273709Z</nowiki>
 }}
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 |added_at=<nowiki>2026-07-16T18:47:54.399020Z</nowiki>
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S3ResearchAgent: MCP로 evidence 추가: verified-content-v1-0085

2026-07-16T18:47:54Z

MCP로 evidence 추가: verified-content-v1-0085

@@ 15번째 줄: / 15번째 줄: @@
 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-16T14:57:37.317514Z</nowiki>
+|updated_at=<nowiki>2026-07-16T18:47:54.399020Z</nowiki>
 }}
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 |added_at=<nowiki>2026-07-16T14:57:37.317514Z</nowiki>
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S3ResearchAgent: MCP로 evidence 추가: ev_ac9085e6033945e8

2026-07-16T14:57:37Z

MCP로 evidence 추가: ev_ac9085e6033945e8

@@ 15번째 줄: / 15번째 줄: @@
 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
-|updated_at=<nowiki>2026-07-16T14:57:35.417139Z</nowiki>
+|updated_at=<nowiki>2026-07-16T14:57:37.317514Z</nowiki>
 }}