{"id":1885,"date":"2017-01-15T14:25:38","date_gmt":"2017-01-15T05:25:38","guid":{"rendered":"https:\/\/www.naraeon.net\/?p=1885"},"modified":"2024-09-24T22:43:17","modified_gmt":"2024-09-24T13:43:17","slug":"jedec-ssd-enterprise-workload","status":"publish","type":"post","link":"https:\/\/www.naraeon.net\/en\/jedec-ssd-enterprise-workload\/","title":{"rendered":"JEDEC SSD \uc218\uba85 \ud45c\uc900 – 1. Enterprise Workload"},"content":{"rendered":"
\uc218\uba85 \ud14c\uc2a4\ud2b8\ub294 \uc81c\uac00 \uc544\ub2cc \ucef4\ud4e8\ud130\uac00 \ud558\uae30 \ub54c\ubb38\uc5d0, \uc911\uac04\uc911\uac04 \ub0ae \uc2dc\uac04\uc5d0\ub294 \uc2dc\uac04\uc774 \ub0a9\ub2c8\ub2e4.
\n\uc218\uba85 \ud14c\uc2a4\ud2b8\uac00 \uc9c4\ud589\ub418\uba74\uc11c \uac01 \ubd80\ubd84\uc744 \uc77d\uc744 \ub54c \ud544\uc694\ud55c \uc815\ubcf4<\/b>\ub4e4\uc744 \uc870\uae08\uc529 \uc62c\ub9ac\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/div>\n
<\/div>\n
\uc774 \uae00\uc740 CCL \uc800\uc791\uc790\ud45c\uc2dc-\ube44\uc601\ub9ac-\ubcc0\uacbd\uae08\uc9c0 2.0 \ub300\ud55c\ubbfc\uad6d\uc744 \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.
\n\uc778\uc6a9 \ubd80\ubd84\uc758 \uc800\uc791\uad8c\uc740 \uc778\uc6a9 \ucd9c\ucc98\uc5d0 \uc788\uc2b5\ub2c8\ub2e4.<\/b><\/span><\/div>\n
<\/div>\n
\n

\ubcf8 \uae00\uc740 \uc774\ubc29\uc778(ebangin127)\uc758 \uac1c\uc778\uc801\uc778 \ud574\uc11d\uc744 \ud3ec\ud568\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.\uc808\ub300 \ubcf8 \uae00\uc774 JESD \ub4f1 \uc778\uc6a9\ubb38\uc5d0 \ub300\ud55c \uc808\ub300\uc801\uc778 \ud574\uc11d\uc774 \ub420 \uc218 \uc5c6\uc74c\uc744 \uc54c\ub824\ub4dc\ub9bd\ub2c8\ub2e4.<\/p>\n<\/div>\n

\n
\n

1. JEDEC\uc774\ub780?<\/b><\/p>\n<\/div>\n

JEDEC\uc740 Joint Electron Device Engineering Council\uc758 \uc57d\uc790\ub85c, \ubbf8\uad6d \uc804\uc790 \uc0b0\uc5c5 \ud611\ud68c\uc640 \uad6d\uc81c \uc804\uc790 \uc81c\uc870\uc5c5\uccb4 \ud611\ud68c\uac00 \uc138\uc6b4 \ubc18\ub3c4\uccb4 \ud45c\uc900\uc744 \uc9c0\uc815\ud558\ub294 \uacf3\uc785\ub2c8\ub2e4. \uc6b0\ub9ac\uc5d0\uac8c \uc798 \uc54c\ub824\uc9c4 DDR DRAM \ud45c\uc900\uc774 \uc774 \uacf3\uc5d0\uc11c \uc9c0\uc815\ub418\uace0 \uc788\uc73c\uba70, \uc774\ubc88\uc5d0 \ub2e4\ub8f0 \uc218\uba85 \ud45c\uc900\uc758 \uacbd\uc6b0\ub3c4 \uc5ec\uae30\uc11c \uc9c0\uc815\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

2. Enterprise Workload<\/b><\/p>\n

\uc6b0\ub9ac\ub294 \uc0ac\uc2e4 \uc0ac\uc6a9\uc790 \ud658\uacbd\uc784\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, \uc5d4\ud130\ud504\ub77c\uc774\uc988 \ud658\uacbd \uae30\uc900(Enterprise Workload)\uc774 \ub354 \ub9ce\uc774 \uc54c\ub824\uc9c4 \uae30\uc900\uc77c \uac83\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4. \uac1c\uc778\uc6a9 \uc81c\ud488\uc740 \ud45c\uc900 \ud14c\ub77c\ubc14\uc774\ud2b8 \ud658\uc0b0 \uc218\uba85(TBW)\ub97c \uacf5\uac1c\ud558\uc9c0 \uc54a\uace0 \ub450\ub9ac\ubb49\uc2e4\ud558\uac8c \ud558\ub8e8\uc5d0 \uba87 \uae30\uac00\ub85c \uba87 \ub144(3\ud3b8\uc5d0\uc11c \uc65c \uc774\ub7f0\uc2dd\uc778\uc9c0\ub3c4 \uc124\uba85\uc744 \ud558\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4), \uc774\ub807\uac8c \ud45c\ud604\ud558\uae30 \ub54c\ubb38\uc5d0 \uc6b0\ub9ac\uac00 \uc778\ud130\ub137\uc73c\ub85c \uac80\uc0c9\ud574\uc11c \ubcfc \uc218 \uc788\ub294 \uc0ac\uc2e4\uc0c1\uc758 \ubaa8\ub4e0 TBW \uc218\uba85\uc758 \uc815\uccb4\uc785\ub2c8\ub2e4.<\/p>\n

\uba3c\uc800 \uc218\uba85 \uccb4\ud06c\ub97c \uc2dc\uc791\ud558\uae30 \uc804\uc5d0 \uc720\ud6a8\ud55c \ub370\uc774\ud130\ub85c \uc804\uccb4 \uc0ac\uc6a9\uc790 \uacf5\uac04\uc744 \ucc44\uc6cc\uc57c \ud569\ub2c8\ub2e4. \uc608\uc2dc\ub85c \ubcfc \ub54c, \uc4f0\uae30\uc640 \ub3d9\uc2dc\uc5d0 \uc9c4\ud589\ub418\ub294 \uc77d\uae30\uc758 \uacbd\uc6b0 \ubbf8\ub9ac \uae30\ub85d\ub41c \ub370\uc774\ud130\uac00 \uc5c6\uc744 \uc2dc \uc5d0\ub7ec\ub97c \ub0bc \uac83\uc73c\ub85c \ubcf4\uae30 \ub54c\ubb38\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4. \uadf8\ub807\uc9c0 \uc54a\uc740 \uacbd\uc6b0(\uc77d\uae30\uc5d0 \uc624\ub958\uac00 \ubc1c\uc0dd\ud558\uc9c0 \uc54a\ub294 \uacbd\uc6b0) \ud3ec\ub9f7\ub41c SSD\ub85c\ub3c4 \uc870\uac74\uc744 \ucda9\uc871\uc2dc\ud0ac \uc218 \uc788\ub2e4\uace0 \ud569\ub2c8\ub2e4.<\/p>\n

– \ud30c\uc77c \ud06c\uae30\ub294 512Byte : 4% \/ 1K~3.5K : 0.5K\ub2f9 1% \/ 4K 67% \/ 8K 10% \/ 16K 7% \/ 32K 3% \/ 64K 3%<\/b><\/p>\n

\"\"<\/p>\n

[\uadf8\ub9bc 1] 4K \ube44\uc728\uc774 \uc555\ub3c4\uc801\uc73c\ub85c \ud07d\ub2c8\ub2e4.<\/p>\n

1K~3.5K\uae4c\uc9c0 0.5K \ub2e8\uc704\ub85c 1%\uc529 \ubc30\uce58\ud55c \uac83\uc774 \uc774\uc0c9\uc801\uc785\ub2c8\ub2e4.<\/p>\n

– 4K\ubcf4\ub2e4 \ud070 \ub370\uc774\ud130\ub294 4K \uc815\ub82c\ub85c \uc804\uc1a1<\/b><\/p>\n

4K \uc815\ub82c\uc740 4K \ub2e8\uc704\ub77c\ub294 \uac83\uc774 \uc544\ub2cc, 4K \uacbd\uacc4\uc5d0 \ub9de\ucd94\uc5b4 \ubcf4\ub0b4\ub77c\ub294 \uac83\uc785\ub2c8\ub2e4. \uc989, \ud30c\ud2f0\uc158 \ud2c0\uc5b4\uc9d0 \ub4f1\uc73c\ub85c \uc139\ud130 \uacbd\uacc4\uc5d0 \ub9de\uc9c0 \uc54a\ub294 \ub370\uc774\ud130\ub97c \ubcf4\ub0b4\uc11c\ub294 \uc548 \ub41c\ub2e4\ub294 \uac83\uc774\uc9c0\uc694.<\/p>\n

– LBA 100% \uc0ac\uc6a9\ud560 \uac83<\/b><\/p>\n

\uc544\ub798\uc758 Trim \uae08\uc9c0\uc640 \ud568\uaed8 \uc5d4\ud130\ud504\ub77c\uc774\uc988 \ud658\uacbd \uae30\uc900\uc774 \uc0ac\uc6a9\uc790 \ud658\uacbd \uae30\uc900\uacfc \ud070 \ucc28\uc774\ub97c \ubcf4\uc774\ub294 \ubd80\ubd84\uc785\ub2c8\ub2e4. \uc989 \ucc98\uc74c\ubd80\ud130 OP\ub85c \uc9c0\uc815\ud558\uc9c0 \uc54a\uc740 \uc774\uc0c1 \uc5ec\uc720 \uacf5\uac04\uc73c\ub85c \uc778\ud55c \uc720\uc0ac OP \ud6a8\uacfc\ub97c \ud5c8\uc6a9\ud558\uc9c0 \uc54a\uaca0\ub2e4\ub294 \uac83\uc774\uc9c0\uc694.<\/p>\n

– UNMAP, TRIM \uc0ac\uc6a9 \ubd88\uac00<\/b><\/p>\n

TRIM \ub4f1\uc758 \uae30\uc220\uc744 \uae08\uc9c0\ud558\uc5ec \uc21c\uc218\ud558\uac8c \uc6e8\uc5b4 \ub808\ubca8\ub9c1\uacfc \uae30\ubcf8\uc73c\ub85c \uc7a1\ud600\uc788\ub294 OP\ub97c \ud1b5\ud55c \uc218\uba85\uc744 \uce21\uc815\ud558\ub3c4\ub85d \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

– \ucc98\uc74c 5% \uc601\uc5ed\uc5d0 50% \/ \ub2e4\uc74c 15% \uc601\uc5ed\uc5d0 30% \/ \ub098\uba38\uc9c0 \uc601\uc5ed\uc5d0 20% \ud560\uc560\ud560 \uac83<\/b><\/p>\n

\"\"<\/a><\/p>\n

[\uadf8\ub9bc 2] LBA \uc0ac\uc6a9 \ube44\uc728<\/p>\n

\uc2e4\uc81c\ub85c OS \uc601\uc5ed \ub4f1\uc758 \uc77c\ubd80\ubd84\uc744 \uc77d\ub294 \ube44\uc728\uc774 \ub2e4\ub978 \uacf3 \uc804\uccb4\ub97c \uc77d\ub294 \ube44\uc728\ubcf4\ub2e4 \ub9ce\uc73c\ubbc0\ub85c \uc774\ub7f0 \uc124\uc815\uc744 \ub3c4\uc785\ud55c \uac83\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4.<\/p>\n

– \uac01\uac01 SSD\uc5d0 \uc624\ud504\uc14b\uc744 \uc801\uc6a9\ud574\uc57c\ud568<\/b><\/p>\n

\uc0ac\uc2e4\uc0c1 SSD\uac00 \uc5ec\ub7ec\uac1c \ud544\uc694\ud55c \ubd80\ubd84\uc785\ub2c8\ub2e4. \uac04\ub2e8\ud558\uac8c \ud45c\ud604\ud558\uba74
\n(\uac01 \ubb38\uc790\ub294 5% \ub2e8\uc704)<\/p>\n

SSD 1 : A<\/span> B B B<\/b> C C C C C C C C C C C C
\nSSD 2 : C\u00a0A<\/span>\u00a0B B B<\/b>\u00a0C C C C C C C C C C C
\nSSD 3 : C C\u00a0A<\/span>\u00a0B B B<\/b>\u00a0C C C C C C C C C C
\n…<\/p>\n

\uc774\ub7f0 \uc2dd\uc73c\ub85c \ub2e4\ub978 \ubc30\uce58\ub97c \ud1b5\ud574 \uc804\uccb4 \uc601\uc5ed\uc5d0 \ub300\ud55c \uc218\uba85\uc744 \uce21\uc815\ud574\uc57c \ud55c\ub2e4\ub294 \uac83\uc774\uc9c0\uc694.<\/p>\n

– \uc704\uc5d0\uc11c \ub9d0\ud55c \uc601\uc5ed \uc0ac\ud56d \uc811\uadfc \uc21c\uc11c\ub294 \uc21c\uc11c\ub300\ub85c \ud558\ub358 \ub79c\ub364\ud558\uac8c \ud558\ub358 \uad00\uacc4\uc5c6\uc74c<\/b><\/p>\n

\uc989 \ucc98\uc74c 5% \uc601\uc5ed -> \ub2e4\uc74c 15% \uc601\uc5ed -> \ub9c8\uc9c0\ub9c9 \uc601\uc5ed \uc774\ub7f0 \uc2dd\uc73c\ub85c \ubc88\uac08\uc544 \uc4f0\ub358, \uc139\ud130 \uc21c\uc11c\ub300\ub85c \uc4f0\ub358 \uad00\uacc4 \uc5c6\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4.<\/p>\n

– 100% \uc5d4\ud2b8\ub85c\ud53c\ub97c \uac00\uc9c0\ub294 \ub79c\ub364\uc774\uc9c0\ub9cc, LBA \ubc88\ud638\ub97c \ud45c\uae30\ud558\ub294 \ub4f1 \uba87 \ubc14\uc774\ud2b8\ub9cc \ubc14\uafb8\ub294 \uac74 \ud5c8\uc6a9<\/b>(\uc554\ud638\ud654\ub41c \ub370\uc774\ud130\ub97c \ubaa8\uc0ac\ud558\uae30 \uc704\ud568. \uc608\uc81c\ub85c vdbench\ub97c \ubcf4\uc5ec\uc8fc\uace0 \uc788\uc2b5\ub2c8\ub2e4)<\/p>\n

\uc554\ud638\ud654\ub41c \ub370\uc774\ud130\ub97c \ubaa8\uc0ac\ud558\uae30 \uc704\ud568\uc774\ub77c\uace0 \uc9c1\uc811 \uc5b8\uae09\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ubbc0\ub85c Blum Blum\u00a0Shub\uacfc \uac19\uc740 \ud328\ud134\uc744 \uc608\uce21\ud558\uae30 \ud798\ub4e0 \ub79c\ub364 \uc54c\uace0\ub9ac\uc998\uc774 Mersenne Twister\uc640 \uac19\uc740 \uc608\uce21 \uac00\ub2a5\ud55c \ub79c\ub364 \uc54c\uace0\ub9ac\uc998\ubcf4\ub2e4 \ub098\uc744 \uac83\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4.<\/p>\n

\ube44\uc2b7\ud55c \uae30\uc900\uc73c\ub85c \uc774 \ud45c\uc900 \uc804\uc5d0 \ub098\uc654\ub358 SPC-1\uc774 \uc788\ub294\ub370, \uc774 \uae30\uc900\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n

– 4K \ub2e8\uc704, \ubaa8\ub450 \ub79c\ub364(\uc815\ub82c \ub2e8\uc704\ub97c ‘\uc0ac\uc6a9\uc790\uc5d0 \ub9de\uac8c’\ub77c\ub294 \uc774\uc720\ub85c \ubc14\uafd4\uc11c\ub294 \uc548\ub429\ub2c8\ub2e4)<\/b>\u2013 60% \uc4f0\uae30, 40% \uc77d\uae30<\/b><\/p>\n

\uc2e4 \uc0ac\uc6a9 \uc608\uc2dc\ub85c HGST\uc758 SSD \uc218\uba85 \ud3c9\uac00 \ubc29\ubc95\uc785\ub2c8\ub2e4. \ud45c\uc900\uacfc \ub2e4\ub974\uac70\ub098 \uc0c8\ub85c \ucd94\uac00\ud55c \ubd80\ubd84\uc740 \ubcfc\ub4dc\ucc98\ub9ac\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

\u2022 Random workload definition: IO size of 4KB or 8KB<\/b>, 4K-aligned, full-volume random (access is uniformly distributed <\/b>across the full drive volume)<\/p>\n

\u2022 Drive is 100% full \u2013 all LBA used, no LBA Trimmed \/ Unmapped (JESD219A)<\/p>\n

\u2022 Data is completely random, e.g. not compressible (JESD219A)<\/p>\n

\u2022 End-of-life, power-off data retention of 3 months in 40DegC storage temperature (JESD218A)<\/p>\n

\u2022 UBER of 1 block in 10E16 Bytes read (JESD218A)<\/p>\n

\u2022 Allowed performance degradation at end of rated product life <10%<\/b><\/p>\n

\n

\ucc38\uace0 \uc790\ub8cc<\/b><\/p>\n

Ulrich Hansen, The SSD Endurance Race: Who\u2019s Got the Write Stuff?<\/p>\n

JEDEC, JESD219A – Solid-State Drive (SSD) Endurance Workloads<\/p>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

\uc218\uba85 \ud14c\uc2a4\ud2b8\ub294 \uc81c\uac00 \uc544\ub2cc \ucef4\ud4e8\ud130\uac00 \ud558\uae30 \ub54c\ubb38\uc5d0, \uc911\uac04\uc911\uac04 \ub0ae \uc2dc\uac04\uc5d0\ub294 \uc2dc\uac04\uc774 \ub0a9\ub2c8\ub2e4. \uc218\uba85 \ud14c\uc2a4\ud2b8\uac00 \uc9c4\ud589\ub418\uba74\uc11c \uac01 \ubd80\ubd84\uc744 \uc77d\uc744 \ub54c \ud544\uc694\ud55c \uc815\ubcf4\ub4e4\uc744 \uc870\uae08\uc529 \uc62c\ub9ac\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc740 CCL \uc800\uc791\uc790\ud45c\uc2dc-\ube44\uc601\ub9ac-\ubcc0\uacbd\uae08\uc9c0 2.0 \ub300\ud55c\ubbfc\uad6d\uc744 \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc778\uc6a9 \ubd80\ubd84\uc758 \uc800\uc791\uad8c\uc740 \uc778\uc6a9 \ucd9c\ucc98\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ubcf8 \uae00\uc740 \uc774\ubc29\uc778(ebangin127)\uc758 \uac1c\uc778\uc801\uc778 \ud574\uc11d\uc744 \ud3ec\ud568\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.\uc808\ub300 \ubcf8 \uae00\uc774 JESD \ub4f1 \uc778\uc6a9\ubb38\uc5d0 \ub300\ud55c \uc808\ub300\uc801\uc778 \ud574\uc11d\uc774 \ub420 \uc218 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[166],"tags":[169,168,167],"class_list":["post-1885","post","type-post","status-publish","format-standard","hentry","category-ssd-tbw","tag-endurance","tag-jesd218","tag-jesd219"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["kr","en"],"languages":{"kr":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/posts\/1885","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/comments?post=1885"}],"version-history":[{"count":6,"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/posts\/1885\/revisions"}],"predecessor-version":[{"id":1900,"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/posts\/1885\/revisions\/1900"}],"wp:attachment":[{"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/media?parent=1885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/categories?post=1885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.naraeon.net\/en\/wp-json\/wp\/v2\/tags?post=1885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}