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t2y-1979 id:t2y-1979

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t2y-1979 2024/03/06
aws

cloud

storage
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å±‹å†…åž‹ãƒˆãƒ©ãƒ³ã‚¯ãƒ«ãƒ¼ãƒ ãƒ»ãƒ¬ãƒ³ã‚¿ãƒ«åŽç´ã‚¹ãƒšãƒ¼ã‚¹ ã‚¹ãƒšãƒ©ãƒœ
t2y-1979 2024/02/11
storage

business
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Amazon Aurora MySQLã®ä¸å…·åˆã§ãƒãƒ¼ã‚«ãƒ«ãƒ‡ã‚£ã‚¹ã‚¯ãŒæž¯æ¸‡ã—ã‚¯ã‚¨ãƒªãŒå®Ÿè¡Œå‡ºæ¥ãªããªã£ãŸè©± - Kaizen Platform é–‹ç™ºè€…ãƒ–ãƒã‚°
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t2y-1979 2022/07/23
aws

mysql

storage
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å€‹äººé–‹ç™ºã®ã‚³ã‚¹ãƒˆã¯DBæ¬¡ç¬¬ - laiso
å€‹äººã§Webã‚µãƒ¼ãƒ“ã‚¹ã‚’ç¶™ç¶šçš„ã«é‹ç”¨ã™ã‚‹ã®ã¯é‡‘ãŒã‹ã‹ã£ã¦ã‹ãªã‚ã‚“ã¨ã„ã†å•é¡ŒãŒã‚ã‚‹ ã€Œå€‹äººé–‹ç™ºã€ã ã¨å®šç¾©ãŒæ›–æ˜§ãªã®ã§è‡ªå·±è³‡é‡‘ã‹ã¤èµ¤å—ã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆ(Webã‚µãƒ¼ãƒ“ã‚¹)ã¨ã„ã†ã“ã¨ã«ã™ã‚‹ã€‚ ãã†ã„ã†ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ã¯ãƒ—ãƒãƒ€ã‚¯ãƒˆã‚ªãƒ¼ãƒŠãƒ¼=è‡ªåˆ†ã€é–‹ç™ºè€…=è‡ªåˆ†ã€äºˆç®—ç®¡ç†è€…=è‡ªåˆ†ã¨ã„ã†ãƒãƒ¼ãƒ«ã«ãªã‚‹ã®ã§äºˆç®—ç®¡ç†è€…ã¨ã—ã¦ã‚³ã‚¹ãƒˆã‚’å›³ã‚‹å¿…è¦ãŒã‚ã‚‹(ã“ã“ã§ã„ã†ã‚³ã‚¹ãƒˆã¯Webã‚µãƒ¼ãƒ“ã‚¹ã‚’å®Ÿç¾ã™ã‚‹ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ©ãƒ³ãƒ‹ãƒ³ã‚°ã‚³ã‚¹ãƒˆã®ã“ã¨)ã€‚ é€šå¸¸ã¯ã¿ã‚“ãªè‡ªåˆ†ã®äººä»¶è²»ã‚’0ã¨ã—ã¦è¨ˆç®—ã—ã¦ã„ã‚‹ã¨æ€ã†(é€†ã«ã„ã†ã¨ãã‚ŒãŒè² å‚µã¨ã„ã†è€ƒãˆæ–¹ã‚‚ã§ãã‚‹ã¨æ€ã†)ã€‚ ãŸã ã—ãƒ¡ãƒ³ãƒ†ãƒŠãƒ³ã‚¹æ™‚é–“ã¨ã‚³ã‚¹ãƒˆã®ãƒˆãƒ¬ãƒ¼ãƒ‰ã‚ªãƒ•ã‚‚ã‚ã‚‹ã®ã§ã€äººä»¶è²»0ã§ã¯ã‚ã‚‹ã‘ã©æœ‰é™ã®æ™‚é–“ã¯åˆ¥è»¸ã¨ã—ã¦ç®¡ç†ã—ã¦ã„ã‚‹ã®ãŒæ™®é€šã ã¨æ€ã†ã€‚æ¥µç«¯ãªä¾‹ã ã¨ã€Œã‚³ã‚¹ãƒˆå‰Šæ¸›ã§ãã‚‹ã‘ã©ãƒ¡ãƒ³ãƒ†ãƒŠãƒ³ã‚¹æ™‚é–“10å€ã«ãªã‚‹ã€ã¨ã„ã†ã®ã¯é¿ã‘ã‚‰ã‚Œã‚‹ã€‚ ä»®ã«å€‹äººé–‹ç™ºã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã®äºˆç®—ã‚’æœˆæ•°åƒå††ã‹ã‚‰é«˜ãã¦ã‚‚1ä¸‡å††ãã‚‰ã„ã‹
t2y-1979 2022/05/05
ãŠã‚‚ã—ã‚ã„è€ƒå¯Ÿ

cloud

database

storage
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Dockerã€ãƒœãƒªãƒ¥ãƒ¼ãƒ (Volume)ã«ã¤ã„ã¦çœŸé¢ç›®ã«èª¿ã¹ãŸ
2019-10-5è¿½è¨˜ ã“ã®è¨˜äº‹ã‚’æ›¸ã„ã¦ï¼‘å¹´ãŒçµŒã¡ã¾ã—ãŸãŒã€å®Ÿã¯ä»Šã‚‚ã»ã¼æ¯Žæ—¥ã„ã„ãã‚„ã‚¹ãƒˆãƒƒã‚¯ã‚’ã‚‚ã‚‰ã£ã¦ã„ã¾ã™ã€‚ ã‚„ã¯ã‚Šã€Docker ã® Volume ãŒæ°—ã«ãªã‚‹äººã¯å¤šã„ã‚“ã ãªã€ã¨æ„Ÿã˜ã¦ã„ã¾ã™ã€‚ ãã®ä¸€æ–¹ã€åŒã˜ãƒ†ãƒ¼ãƒžã§æ›¸ã„ãŸ ã€Ž[Docker] containerãŒä½¿ã£ã¦ã‚‹å…¨ã¦ã®volumeã‚’CSVå‡ºåŠ›ã™ã‚‹ãƒ¯ãƒ³ãƒ©ã‚¤ãƒŠãƒ¼ - Qiitaã€ ã¯ã€æœªã ã«ã€Œï¼‘ã„ã„ãã€ãªã®ã§ã™ãŒã€ã©ã¡ã‚‰ã‹ã¨è¨€ãˆã°ã€ã“ã¡ã‚‰ã®è¨˜äº‹ã®ã»ã†ãŒå®Ÿè·µçš„ãªã®ã§ã€ç´¹ä»‹ã—ã¦ãŠãã¾ã™ã€‚ å…·ä½“çš„ã«ã¯ã€Œgitã‹ã‚‰cloneã—ã¦ãã¦docker-composeã§èµ·å‹•ã—ãŸã‘ã©ã€ã“ã‚Œã®ã‚³ãƒ³ãƒ†ãƒŠã¨ãƒœãƒªãƒ¥ãƒ¼ãƒ ã£ã¦ã©ã†ã¤ãªãŒã£ã¦ã‚‹ã®ï¼Ÿã€ã¨ã„ã£ãŸç–‘å•ã®è§£æ±ºã«ä½¿ãˆã‚‹æ€ã„ã¾ã™ ã¯ã˜ã‚ã« Docker ã® Volume ã£ã¦é›£ã—ããªã„ã§ã™ã‹ï¼Ÿ ç†è§£ã«è‡ªä¿¡ãŒç„¡ã‹ã£ãŸéƒ¨åˆ†ã‚’ã€çœŸé¢ç›®ã«èª¿ã¹ã¦ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸã€‚ ã“ã‚Œã‚’èªã‚€ã¨ã‚ã‹ã‚‹ã“ã¨ ã‚³ãƒ³ãƒ†ãƒŠ ã¨ ãƒœãƒªãƒ¥ãƒ¼ãƒ ã®é•
t2y-1979 2021/01/13
docker

storage
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Googleã‚µãƒ¼ãƒ“ã‚¹ã§ã®8æœˆ20æ—¥ã®å¤§è¦æ¨¡éšœå®³ã«ã¤ã„ã¦ã€GoogleãŒåŽŸå› ã¨å¯¾ç–ã‚’èª¬æ˜Ž
ã“ã®éšœå®³ã¯ã€19æ—¥ã®åˆå¾Œ8æ™‚55åˆ†ï½ž20æ—¥ã®åˆå‰3æ™‚30æ—¥ã«ã€è¤‡æ•°ã®G SuiteãŠã‚ˆã³Google Cloud Platformè£½å“ã§ã‚¨ãƒ©ãƒ¼ã€åˆ©ç”¨ä¸å¯ã€é…ä¿¡ã®é…å»¶ãŒç™ºç”Ÿã—ãŸã¨ã„ã†ã‚‚ã®ã€‚æ—¥æœ¬ã§ã‚‚Gmailã«ãƒ•ã‚¡ã‚¤ãƒ«ã‚’æ·»ä»˜ã—ã‚ˆã†ã¨ã™ã‚‹ã¨ã‚¨ãƒ©ãƒ¼ãŒè¡¨ç¤ºã•ã‚Œã‚‹ãªã©ã®ä¸å…·åˆãŒæ•°æ™‚é–“ã«ã‚ãŸã£ã¦å ±å‘Šã•ã‚ŒãŸã€‚ å•é¡Œã¯ã€å°è¦æ¨¡ãªã‚‚ã®ã‚‚å«ã‚ã‚‹ã¨ã€Gmailã€Googleãƒ‰ãƒ©ã‚¤ãƒ–ã€Google Docsã€New Google Sitesã€Chatã€Meetã€Keepã€Google Voiceã€Jamboardã€Admin Consoleã€App Engineã€Cloud Loggingã€Cloud Storageãªã©å¤šå²ã«ã‚ãŸã£ãŸã€‚ æ ¹æœ¬çš„ãªåŽŸå› ã¯ã€Googleã®å¤šæ§˜ãªã‚µãƒ¼ãƒ“ã‚¹ã§ä½¿ã£ã¦ã„ã‚‹ã€BLOBï¼ˆBinary Large OBjectï¼‰ã¨å‘¼ã°ã‚Œã‚‹éžæ§‹é€ åŒ–ãƒ‡ãƒ¼ã‚¿ã«å…±é€šã®å†…éƒ¨åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã§ã®éŽè² è·ã€‚ã“ã®BLOB
t2y-1979 2020/08/25
google

cloud

storage
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Deep Dive: NewSQL Databases
Overview One of my colleagues, @margo_hdb, recently posted a great article Database Architectures & Use Cases - Explained here on dev.to. In response a user asked for a deeper dive on NewSQL databases, so I thought I would put one together. The term NewSQL was coined in 2011 by 451 Group analyst Matthew Aslett. Wikipedia defines the term below: â€œ NewSQL is a class of relational database management
t2y-1979 2020/07/12
database

storage
ãƒªãƒ³ã‚¯
ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã®åŸºç¤Ž
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t2y-1979 2020/07/08
storage

hardware
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Dropbox Businessã¯éžå¸¸ã«å±é™ºã§ã™ | æ±Ÿå£æŸã®ä¸å¦‚æ„ç ”ç©¶å®¤
ï¼ˆã“ã®è¨˜äº‹ã¯ã€Dropboxç¤¾ã«å¯¾ã—ã¦ãƒ•ã‚§ã‚¢ã˜ã‚ƒãªã„ã‚‚ã®ã«ãªã£ã¦ã„ã¾ã™ã€‚ç¶šãã®ã€ŒDropbox Businessã¯é¦¬é¹¿ãŒä½¿ã†ã¨éžå¸¸ã«å±é™ºãªã“ã¨ã‚’æ¤œè¨¼ã—ã¾ã—ãŸã€ã‚‚èªã‚“ã§ãã ã•ã„ï¼‰ æœ€è¿‘ã€éžå¸¸ã«é‡å¤§ãªäº‹æ•…ã‚’èµ·ã“ã—ã¦ã—ã¾ã£ãŸã®ã§å ±å‘Šã—ã¾ã™ã€‚å®Ÿéš›ã®è¢«å®³ã¯ã€æœ€é«˜ãŒ7ã ã¨ã™ã‚‹ã¨3ã‹4ãã‚‰ã„ã€ã—ã‹ã—æ½œåœ¨çš„ãªå±é™ºåº¦ã‹ã‚‰ã„ã†ã¨7æ®µéšŽã§7ã€ã£ã¦ãã‚‰ã„é‡å¤§ã€‚Dropboxã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’å¤§é‡ã«å¤±ãªã£ã¦ã—ã¾ã£ãŸã°ã‹ã‚Šã‹ã€å€‹äººæƒ…å ±æµå‡ºã®å±é™ºã‚’ãŠã‹ã—ã¦ã—ã¾ã„ã¾ã—ãŸã€‚ï¼ˆå®Ÿéš›ã«ã¯æµå‡ºã¨ã„ãˆã‚‹ã‚‚ã®ã¯ã‚ã‚Šã¾ã›ã‚“ã§ã—ãŸãŒï¼‰ Dropbox Businessãƒãƒ¼ãƒ ã«æ‹›å¾…ã•ã‚Œå‚åŠ ã—ã¦ã€Œã‚¢ã‚«ã‚¦ãƒ³ãƒˆã‚’çµ±åˆã€ã™ã‚‹ã¨ã€è‡ªåˆ†ã§ã¯æŠœã‘ã‚‰ã‚Œãªã„çŠ¶æ…‹ã«ãªã‚‹ ãã‚Œã ã‘ã§ãªãã€ãã‚Œã¾ã§è‡ªåˆ†ãŒã‚‚ã£ã¦ã„ãŸãƒ•ã‚¡ã‚¤ãƒ«ã‚‚ã™ã¹ã¦ãƒãƒ¼ãƒ ã®ã‚‚ã®ã«ãªã‚‹ å€‹äººç”¨ã®å¥‘ç´„ãŒå‹æ‰‹ã«è§£é™¤ã•ã‚Œã¦ã—ã¾ã† ç§ã®ã‚¢ã‚«ã‚¦ãƒ³ãƒˆã‚’å‰Šé™¤ã™ã‚‹ã¨ã€ç®¡ç†è€…ã¯ç§ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’è‡ªåˆ†ã®ã‚‚ã®ã«ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ ç®¡
t2y-1979 2020/06/22
cloud

storage

business

failure
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å¤§è¦æ¨¡ãƒ‡ãƒ¼ã‚¿æ´»ç”¨å‘ã‘ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ãƒ¬ã‚¤ãƒ¤ã‚½ãƒ•ãƒˆã®ã“ã‚Œã¾ã§ã¨ã“ã‚Œã‹ã‚‰ï¼ˆNTTãƒ‡ãƒ¼ã‚¿ ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ 2019 è¬›æ¼”è³‡æ–™ã€2019/09/05ï¼‰
1. Â© 2019 NTT DATA Corporation 1 Â© 2019 NTT DATA Corporation NTTãƒ‡ãƒ¼ã‚¿ ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ 2019 å¤§è¦æ¨¡ãƒ‡ãƒ¼ã‚¿æ´»ç”¨å‘ã‘ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ãƒ¬ã‚¤ãƒ¤ã‚½ãƒ•ãƒˆã® ã“ã‚Œã¾ã§ã¨ã“ã‚Œã‹ã‚‰ 2019å¹´9æœˆ5æ—¥ æ ªå¼ä¼šç¤¾NTTãƒ‡ãƒ¼ã‚¿ ã‚·ã‚¹ãƒ†ãƒ æŠ€è¡“æœ¬éƒ¨ å‰ç”° è€•é™½ ç¦ä¹… ç¢ä¹Ÿ 2. Â© 2019 NTT DATA Corporation 2 â€»Deepãªè©±é¡Œã«èˆˆå‘³ãŒã‚ã‚‹æ–¹ã¯å½“ãƒãƒ¼ãƒ ãƒ¡ãƒ³ãƒã«ã‚ˆã‚‹éŽåŽ»ã®ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã§ã®ç™ºè¡¨è³‡æ–™ã‚‚ã”å‚ç…§ãã ã•ã„ã€‚ ( ã§æ¤œç´¢) æœ¬ã‚»ãƒƒã‚·ãƒ§ãƒ³ã§ãŠä¼ãˆã—ãŸã„ã“ã¨ Hadoopèª•ç”Ÿ(2006å¹´ã”ã‚)ã‹ã‚‰ã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ç³»OSSã‚’ä¸å¿ƒã¨ ã—ãŸæŠ€è¡“ã®ç™ºå±•ã¨ã€æ®‹å˜ã™ã‚‹æŠ€è¡“èª²é¡Œã«å¯¾ã™ã‚‹è¿‘å¹´å‡ºç¾ã—ã¦ ããŸãƒ—ãƒãƒ€ã‚¯ãƒˆã®ã‚¢ãƒ—ãƒãƒ¼ãƒã‚’è‹¥å¹²å¯„ã‚Šé“ã—ãªãŒã‚‰ç´¹ä»‹ã—ã¾ã™ã€‚ â€¢ ãŠè©±ã—ã—ãªã„å†…å®¹ â€¢ å€‹åˆ¥ã®æŠ€è¡“/ãƒŸãƒ‰ãƒ«ã‚¦ã‚§ã‚¢ã®â€Deepãªâ€è©±é¡Œ(â€»)
t2y-1979 2020/06/10
data pipeline

bigdata

analysis

storage
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Linux Multi-Queue Block IO Queueing Mechanism (blk-mq) Details - Thomas-Krenn-Wiki-en
Blk-mq integrates seamlessly into the Linux storage stack. It provides basic functions to device drivers for mapping I/O enquiries to multiple queues. The tasks are distributed across multiple threads and therefore to multiple CPU cores (per-core software queues). Blk-mq compatible drivers inform blk-mq how many parallel hardware queues a device supports (number of submission queues as part of the
t2y-1979 2020/03/09
linux

kernel

storage

performance
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Amazon.co.jpã®ã‚ªãƒ³ãƒ©ã‚¤ãƒ³ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚µãƒ¼ãƒ“ã‚¹ã€ŒAmazon Driveã€ã«å®¹é‡ç„¡åˆ¶é™ã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ä¿å˜ã§ãã‚‹ã€ŒUnlimitedã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ãƒ—ãƒ©ãƒ³ã€ã®æä¾›ãŒã€11æœˆ20æ—¥ã«çµ‚äº†ã—ãŸã€‚2017å¹´6æœˆã«ã¯ç±³Amazon.comã§ã‚‚åŒæ§˜ã®ãƒ—ãƒ©ãƒ³ã‚’çµ‚äº†ã—ã¦ãŠã‚Šã€ãã‚Œã«è¿½å¾“ã—ãŸå½¢ã ã€‚ Amazon.co.jpã®Unlimitedã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã¯ã€16å¹´7æœˆã«æä¾›ã‚’å§‹ã‚ã€å¹´é¡1ä¸‡3800å††ï¼ˆç¨Žè¾¼ã€ä»¥ä¸‹åŒï¼‰ã§å†™çœŸã‚„å‹•ç”»ã€æ¥½æ›²ã€ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆãªã©ã‚’å®¹é‡ç„¡åˆ¶é™ã§ã‚¢ãƒƒãƒ—ãƒãƒ¼ãƒ‰ã§ãã‚‹ãƒ—ãƒ©ãƒ³ã ã£ãŸã€‚ ã‚µãƒ¼ãƒ“ã‚¹çµ‚äº†å¾Œã®åˆ‡ã‚Šæ›¿ãˆå…ˆã®ãƒ—ãƒ©ãƒ³ã¯ã€100GBï½ž30TBã®ãƒ—ãƒ©ãƒ³ãŒç”¨æ„ã•ã‚Œã¦ã„ã‚‹ã€‚Unlimitedã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ãƒ—ãƒ©ãƒ³ã¨åŒã˜å¹´é¡1ä¸‡3800å††ã§åˆ©ç”¨ã§ãã‚‹ã®ã¯1TBãƒ—ãƒ©ãƒ³ã€‚æœ€å¤§ã®30TBãƒ—ãƒ©ãƒ³ã¯å¹´é¡41ä¸‡4000å††ã€‚ Unlimitedã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’å¥‘ç´„ã—ã¦ã„ã¦è‡ªå‹•æ›´æ–°è¨å®šã‚’ã—ã¦ã„ã‚‹ãƒ¦ãƒ¼ã‚¶ãƒ¼ã¯ã€æœ‰åŠ¹æœŸé–“çµ‚äº†å¾Œã«è‡ªå‹•çš„ã«
t2y-1979 2019/09/25
amazon

storage
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Linuxã‚«ãƒ¼ãƒãƒ«5.0ã§ã¯CFQ, Deadlineã¨è¨€ã£ãŸã‚·ãƒ³ã‚°ãƒ«ã‚ãƒ¥ãƒ¼ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ãŒå…¨ã¦å‰Šé™¤ã•ã‚Œã¦ã‚«ãƒ¼ãƒãƒ«ã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆIOã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©è¨å®šã‚‚ç„¡ããªã£ã¦ã„ã¾ã—ãŸ
Linuxã‚«ãƒ¼ãƒãƒ«5.0ã§ã¯CFQ, Deadlineã¨è¨€ã£ãŸã‚·ãƒ³ã‚°ãƒ«ã‚ãƒ¥ãƒ¼ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ãŒå…¨ã¦å‰Šé™¤ã•ã‚Œã¦ã‚«ãƒ¼ãƒãƒ«ã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆIOã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©è¨å®šã‚‚ç„¡ããªã£ã¦ã„ã¾ã—ãŸ Linux 5.0ã§ã®å¤‰æ›´ 5.0ã§ã®å…¨ä½“ã®å¤‰æ›´ã¯ã“ã“ã§è¦‹ã‚Œã¾ã™. ä»Šå›žãƒ“ãƒƒã‚¯ãƒªã—ãŸã®ã¯ block/cfq-iosched.c ã¨ block/deadline-iosched.c ã®å‰Šé™¤ã§ã™. CFQãŒä¸»ã«SSDã§æ€§èƒ½ãŒè‰¯ããªã„ã“ã¨ã¯çŸ¥ã£ã¦ã„ã¾ã—ãŸãŒ, DeadlineãŒå‰Šé™¤ã•ã‚Œã‚‹ã¨ã¯æ€ã£ã¦ã„ã¾ã›ã‚“ã§ã—ãŸ. ã¾ã‚ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®æœ€å¤§åŒ– - ArchWiki ã‚’ä¿¡ã˜ã‚‹ãªã‚‰CFQã¨Deadlineã¯ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ã«å¯¾å¿œã—ã¦ã„ãªã„ã®ã§å‰Šé™¤ã¯æ™‚ä»£ã®æµã‚Œã§ã—ã‚‡ã†. è¨€åŠã¯ã‚³ãƒŸãƒƒãƒˆä¸Šã§ã¯ã“ã“ã§ã•ã‚Œã¦ã„ã¾ã™. ã™ã”ã„ç ´å£Šçš„å¤‰æ›´ãªã®ã«, Linux 5.0ã®ãƒªãƒªãƒ¼ã‚¹ãƒ‹ãƒ¥ãƒ¼ã‚¹ã«ã‚‚ãƒã‚§ãƒ³ã‚¸ãƒã‚°ã‚’ã¾ã¨ã‚ãŸã‚µã‚¤ãƒˆã§ã‚‚å…¨ç„¶å–ã‚Šä¸Šã’ã‚‰ã‚Œã¦ç„¡ãã¦, m
t2y-1979 2019/03/19
linux

kernel

storage
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Rustè£½ã®åˆ†æ•£ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’OSSã¨ã—ã¦å…¬é–‹ã—ã¾ã—ãŸ - dwango on GitHub
ã¯ã˜ã‚ã« ãƒ‰ãƒ¯ãƒ³ã‚´ã§ã¯niconicoã®é…ä¿¡ç³»ã‚µãƒ¼ãƒ“ã‚¹ã®ãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰ã§åˆ©ç”¨ã™ã‚‹ãŸã‚ã«ã€Frugalosã¨ã„ã†åå‰ã®åˆ†æ•£ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’é–‹ç™ºã—ã¦ã„ã‚‹ã®ã§ã™ãŒã€ã“ã®åº¦OSSã¨ã—ã¦å…¬é–‹ã™ã‚‹ã“ã¨ã¨ãªã‚Šã¾ã—ãŸã®ã§ã€ã“ã®å ´ã‚’å€Ÿã‚Šã¦è»½ãç´¹ä»‹ã•ã›ã¦è²°ã„ã¾ã™ã€‚ Frugalosã¯Rustã§å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€ç¾æ™‚ç‚¹ã§ã¯ä»¥ä¸‹ã®ãƒªãƒã‚¸ãƒˆãƒªãŒå…¬é–‹ã•ã‚Œã¦ã„ã¾ã™: raftlog_protobuf: raftlogã¸ã®Protocol Buffersã‚µãƒãƒ¼ãƒˆã®è¿½åŠ â€œFrugalos"ã£ã¦ä½•ï¼Ÿ â€œFrugal object storage"ã®ç•¥ã§ã™ã€‚ â€œfrugal"ã¯æ—¥æœ¬èªžã§ã¯ã€Œå€¹ç´„ãªã€ã‚„ã€Œç¯€ç´„ã™ã‚‹ã€ã¨ã„ã£ãŸæ„å‘³ã¨ãªã‚Šã€ã€Œèªã¿æ›¸ãæ€§èƒ½ã‚’çŠ ç‰²ã«ã›ãšã«ã€è†¨å¤§ãªæ•°ã®BLOBï¼ˆBinary Large OBjectï¼‰ã‚’ã€å®¹é‡åŠ¹çŽ‡è‰¯ãä¿æŒã™ã‚‹ã€ã“ã¨ã‚’ç›®æŒ‡ã—ã¦é–‹ç™ºã•ã‚Œã¦ã„ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã§ã™ã€‚ æä¾›ã•ã‚Œã¦ã„ã‚‹æ©Ÿèƒ½ã¯
t2y-1979 2018/10/26
object-storage

rust

storage
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btrfs? Dropboxã•ã‚“, ã‚ãªãŸãŒè¦‹ã¦ã„ã‚‹ã®ã¯ext4ã§ã™ã‚ˆ - Gentoo metalog
æ³¨æ„: ã“ã®è¨˜äº‹ã®å†…å®¹ã¯ã‚ã‚Šã¨å±é™ºãªéƒ¨åˆ†ãŒã‚ã‚Šã¾ã™. ä½¿ã„ãŸããªã£ã¦ã‚‚ã‚ˆãæ³¨æ„ã—ã¦ç†è§£ã—ã¦ä½¿ã£ã¦ãã ã•ã„ ã‚ãŸã—ã‚‚ã¾ã å¤§ã—ã¦å®Ÿå‹•ãƒ†ã‚¹ãƒˆã—ã¦ã¾ã›ã‚“. Dropboxã®ä¸èº«ãŒæ¶ˆå¤±ã—ãŸã‚Š, FSãŒã“ã‚ã‚ŒãŸã‚Š, ãªã‚“ã‹ãŠã‚‚ã—ã‚ã„ã“ã¨ã«ãªã£ã¦ã‚‚è²¬ä»»ã¯ä¸€åˆ‡ã¨ã‚Œã¾ã›ã‚“.Â æŠ€è¡“çš„ãªè¦³è³žç”¨ã«ç•™ã‚ã‚‹ã®ãŒç„¡é›£ã§ã™ ã¯ã˜ã‚ã« DropboxãŒext4ã—ã‹å¯¾å¿œã—ãªããªã‚‹ã‚‰ã—ã„ã§ã™ã. btrfsæ„›ç”¨è€…ã¨ã—ã¦ã¯ãƒãƒãƒ£ãƒ¡ãƒãƒ£ã‚ã‚“ã©ã„ã§ã™. ã¨ã„ã†ã“ã¨ã§, ãªã‚“ã¨ã‹ã—ãŸããªã‚Šã¾ã™ã. 1ã¤ã®æ–¹æ³•ã¨ã—ã¦, ä¸‹ã®è¨˜äº‹ã®ã‚ˆã†ã«btrfsä¸Šã«ext4ã®ã‚¤ãƒ¡ãƒ¼ã‚¸ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ä½œã£ã¦ã‚ã’ã‚‹ã¨ã„ã†æ–¹æ³•ãŒã‚ã‚Šã¾ã™. qiita.com ãŸã ã“ã®æ–¹æ³•ã ã¨, kernelã®ä¸ã§ç„¡é§„ã«ext4ã‚’Dropboxã®ãŸã‚ã ã‘ã«å‹•ã‹ã™ã“ã¨ã«ãªã‚Šã¾ã™ã. ext4ã®moduleãªã‚“ã‹ç½®ã„ã¦ãŠããŸããªã„. ãã†æ€ã„ã¾ã›ã‚“ã‹ ã‚·ã‚¹ãƒ†ãƒ ã‚³ãƒ¼ãƒ«ã®çµæžœã‚’æ›¸ãã‹ãˆã‚‹
t2y-1979 2018/09/03
ãŠã‚‚ã—ã‚ã„

linux

kernel

file system

storage

dropbox
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Using an external journal with ext4 â€“ Jean's Blog
t2y-1979 2018/08/23
linux

kernel

file system

storage
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ext4: using external journal to optimise performance
t2y-1979 2018/08/22
linux

kernel

storage

performance

benchmark
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OS Configurations for Better Hadoop Performance
t2y-1979 2018/08/01
hadoop

storage

performance
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Storage Administration Guide | Red Hat Product Documentation
t2y-1979 2018/08/01
rhel

centos

storage

document
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HP Smart array CLI commands
t2y-1979 2018/07/27
storage

cli
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