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Virtualization & Cloud/VMware

๐Ÿ“–vSAN ์ •์ฑ… : RAID ๊ตฌ์„ฑ ์‹œ FTT ๋ฐ ํ˜ธ์ŠคํŠธ ์š”๊ตฌ์‚ฌํ•ญ

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๐Ÿ“ŒvSAN ์ •์ฑ…

- vSAN ์Šคํ† ๋ฆฌ์ง€ ์ •์ฑ…์€ ๊ฐ€์ƒ ์‹œ์Šคํ…œ์˜ ์Šคํ† ๋ฆฌ์ง€ ์š”๊ตฌ์‚ฌํ•ญ์„ ์ •์˜ํ•ฉ๋‹ˆ๋‹ค. ์ด ์ •์ฑ…์„ ๊ธฐ๋ฐ˜์œผ๋กœ ๊ด€๋ฆฌ ๋ฐ ์›Œํฌ๋กœ๋“œ VM์— ์Šคํ† ๋ฆฌ์ง€๋ฅผ ํ• ๋‹นํ•˜๋Š” ๋ฐฉ๋ฒ•์„ ๊ฒฐ์ •ํ•ฉ๋‹ˆ๋‹ค.

 

๐Ÿ“ŒvSAN VM ์Šคํ† ๋ฆฌ์ง€ ์ •์ฑ…์˜ ๊ฐ€์šฉ์„ฑ ํŠน์„ฑ

๐Ÿ”์‚ฌ์ดํŠธ ์žฅ์•  ํ—ˆ์šฉ ์˜ค์ฐจ

์‚ฌ์ดํŠธ ์žฅ์• ๋ฅผ ์ฒ˜๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด ํ™•์žฅ ํด๋Ÿฌ์Šคํ„ฐ์—์„œ ์‚ฌ์šฉ๋˜๋Š” ๋ฐ์ดํ„ฐ ์ด์ค‘ํ™” ๋ฐฉ๋ฒ•์„ ์ •์˜ํ•˜๊ณ , ์ด ํŠน์„ฑ์€ ํ™•์žฅ๋œ ํด๋Ÿฌ์Šคํ„ฐ์— ์ ์šฉ๋ฉ๋‹ˆ๋‹ค. ํ‘œ์ค€ vSAN ํด๋Ÿฌ์Šคํ„ฐ๊ฐ€ ์žˆ๋Š” ๊ฒฝ์šฐ standard cluster(None)๋ฅผ ์„ ํƒํ•ฉ๋‹ˆ๋‹ค.

 

โ— None (standard cluster)

โ— Dual-site mirroring (stretched cluster)

โ— None - Keep data on primary (stretched cluster)

โ— None - Keep data on secondary (stretched cluster)

๐Ÿ” ํ—ˆ์šฉํ•  ์ˆ˜ ์—†๋Š” ์žฅ์• 

๊ฐ€์ƒ ์‹œ์Šคํ…œ์ด ํ—ˆ์šฉํ•  ์ˆ˜ ์žˆ๋Š” ํ˜ธ์ŠคํŠธ ๋ฐ ๋””๋ฐ”์ด์Šค ์žฅ์•  ์ˆ˜๋ฅผ ์ •์˜ํ•ฉ๋‹ˆ๋‹ค. ๋ฐ์ดํ„ฐ์˜ ์ค‘๋ณต์„ฑ์„ ๊ฐ€์ง€์ง€ ์•Š๊ฒŒ ํ•˜๊ฑฐperformance (Mirroring) or capacity (Erasure Coding)์— ์ตœ์ ํ™” ๋œ RAID ๊ตฌ์„ฑ์„ ์„ ํƒ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๐Ÿ“ƒRAID ๊ตฌ์„ฑ, FTT ๋ฐ ํ˜ธ์ŠคํŠธ ์š”๊ตฌ์‚ฌํ•ญ

RAID ๊ตฌ์„ฑ FTT(ํ—ˆ์šฉ๋˜๋Š” ์žฅ์• ) ํ•„์š”ํ•œ ์ตœ์†Œ ํ˜ธ์ŠคํŠธ ์ˆ˜
RAID-1(๋ฏธ๋Ÿฌ๋ง). ๊ธฐ๋ณธ ์„ค์ •์ž…๋‹ˆ๋‹ค. 1 3
RAID-5(์ด๋ ˆ์ด์ € ์ฝ”๋”ฉ) 1 4
RAID-1(๋ฏธ๋Ÿฌ๋ง) 2 5
RAID-6(์ด๋ ˆ์ด์ € ์ฝ”๋”ฉ) 2 6
RAID-1(๋ฏธ๋Ÿฌ๋ง) 3 7

โ€ป FTT=0(๋ฐ์ดํ„ฐ ์ด์ค‘ํ™” X)์ธ VM ์Šคํ† ๋ฆฌ์ง€ ์ •์ฑ…์€ ์‚ฌ์šฉํ•˜์ง€ ์•Š๋Š” ๊ฒƒ์ด ์ข‹์œผ๋ฉฐ, ํ˜ธ์ŠคํŠธ ์žฅ์• ๊ฐ€ ๋ฐœ์ƒํ•˜๊ฑฐ๋‚˜ VM์ด ์‘๋‹ตํ•˜์ง€ ์•Š๋Š” ๊ฒฝ์šฐ ๋ฐ์ดํ„ฐ ์†์‹ค์„ ์ผ์œผํ‚ฌ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

 

 

§์ถœ์ฒ˜: <https://docs.vmware.com/kr/VMware-Cloud-on-AWS/services/com.vmware.vsphere.vmc-aws-manage-data-center.doc/GUID-EDBB551B-51B0-421B-9C44-6ECB66ED660B.html>

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ํฌ์ŠคํŒ… ์ฃผ์†Œ๋ฅผ ๋ณต์‚ฌํ–ˆ์Šต๋‹ˆ๋‹ค

์ด ๊ธ€์ด ๋„์›€์ด ๋˜์—ˆ๋‹ค๋ฉด ๊ณต๊ฐ ๋ถ€ํƒ๋“œ๋ฆฝ๋‹ˆ๋‹ค.