ssd raid 5
我曾經不只一次看到有朋友提出以下問題：. 1. SSD做RAID性能如何，RAID卡會成為瓶頸嗎？ 2. SAS/SATA SSD做RAID，與PCIe/NVMe Flash相比，哪個性能好？ 3. SAS SSD是否比SATA SSD性能好，用在伺服器上有無必要？ 4. SSD做哪種RAID級別最合適，R5/10性能損失是否比HDD更大？5. RAID卡與SAS ...,每一個PCIe 通道最高可支援每秒. 8GT 高速。PCIe 3.0 最適合搭配現代高. 速SSD，由多顆SSD 組成的RAID 5. 配置可突破每秒6,000MB 的效能! 專業級的磁碟陣列解決方案. RocketRAID 800 系列磁碟陣列卡利. 用HighPoint 二十年來在磁碟陣列. 與儲存業界的技術，提供專業級的磁. 碟陣列儲存，而花費僅需傳統磁碟陣. 列解決方案的 ... , 我是沒有全部用SSD 當RAID, 但是已經幫好幾個客戶, 導入用SSD 當RAID 的前端(Tier-0) Cache, 容量從200GB~400GB 都有, 後端(Tier-1)的儲存還是用傳統機械硬碟, 大約都有十幾顆NL-SAS 或SAS, 組成RAID-5. 這樣若資料是Hit cache 的狀況下, 最高的效能大約可以接近12,000 Read IOPS 左右. 回應10. 分享., I am configuring a new server Dell R740 with the PERC740p controller with 5x SSDs in a RAID5. I a... | 34 replies | Dell Hardware and Solid State Drives (SSDs), I know there have been similar posts to this in the past but I was hoping for some updated opinions. Looking to build a couple VMWare ESXi Hosts using a RAID5 format for the SSDs instead of HDDs. Hoping to use 4-5 1TB SSDs to start. Early on these hosts , First of all, here is why RAID 5 is so bad and has stopped working since 2009. To recap, two things to blame here. UREs (Unrecoverable Read Error) Disk storage capacity Here is an example to illustrate why it's so bad having RAID 5 on large capacity , Your reasoning is correct, though you're missing the scale of the problem. Enterprise SSDs are being made with higher endurance MLC cells, and can tolerate very high write-rates. SLC still blows high-endurance MLC out of the water, but in most cases ,作者williambug (william). 看板Storage_Zone. 標題[請益] RAID5(四顆)比單顆硬碟效能還慢, 怪~. 時間Mon May 18 13:38:07 2015. 最近在公司做實驗, 想要組一套的廉價的PC (為了組一群BigData用的主機群的先期測試) 設備清單如下: CPU:i7-4790 , RAM:8G*4 , M/B:ASUS H97M-E , SSD:M.2 128G & SATA 128G * 2 HDD:WD紫 ... , I see a lot of people saying to avoid SSDs on RAID5 like it's a curse, but why exactly should I avoid putting 3 SSDs in RAID5, and have 2 SSDs in RAID1 and 1 hot-spare SSD? Thanks. Are you trying to setup/configure 2 set of RAID arrays? ie: RAID5 (wi, 磁碟陣列，提供了容錯或加速，搭配不同層級的磁碟陣列，則可以有不同的功效。常見的RAID 0只有加速功能，最少需要2顆硬碟，RAID 1只有容錯功能，最少需要2顆硬碟，RAID 1+0則兼具加速與容錯功能，最少需要2顆硬碟。比較先進的作法，則有RAID 5與RAID 6，RAID 5同時兼具加速與容錯功能，最少需要3顆硬 ...
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 ssd raid 5 相關參考資料
存儲極客談「SSD RAID能跑多快？要安全就沒性能？」 - 壹讀
我曾經不只一次看到有朋友提出以下問題：. 1. SSD做RAID性能如何，RAID卡會成為瓶頸嗎？ 2. SAS/SATA SSD做RAID，與PCIe/NVMe Flash相比，哪個性能好？ 3. SAS SSD是否比SATA SSD性能好，用在伺服器上有無必要？ 4. SSD做哪種RAID級別最合適，R5/10性能損失是否比HDD更大？5. RAID卡與SAS ... https://read01.com SATA SSD 儲存效能最大化， RAID 5 效能突破每秒6000MB ... - Highpoint
每一個PCIe 通道最高可支援每秒. 8GT 高速。PCIe 3.0 最適合搭配現代高. 速SSD，由多顆SSD 組成的RAID 5. 配置可突破每秒6,000MB 的效能! 專業級的磁碟陣列解決方案. RocketRAID 800 系列磁碟陣列卡利. 用HighPoint 二十年來在磁碟陣列. 與儲存業界的技術，提供專業級的磁. 碟陣列儲存，而花費僅需傳統磁碟陣. 列解決方案的 ...... http://www.highpoint-tech.com SSD RAID - iT 邦幫忙::一起幫忙解決難題，拯救IT 人的一天 - iThome
我是沒有全部用SSD 當RAID, 但是已經幫好幾個客戶, 導入用SSD 當RAID 的前端(Tier-0) Cache, 容量從200GB~400GB 都有, 後端(Tier-1)的儲存還是用傳統機械硬碟, 大約都有十幾顆NL-SAS 或SAS, 組成RAID-5. 這樣若資料是Hit cache 的狀況下, 最高的效能大約可以接近12,000 Read IOPS 左右. 回應10. 分享. https://ithelp.ithome.com.tw Best Practices for RAID 5 with SSD - Dell Hardware - Spiceworks
I am configuring a new server Dell R740 with the PERC740p controller with 5x SSDs in a RAID5. I a... | 34 replies | Dell Hardware and Solid State Drives (SSDs) https://community.spiceworks.c Raid 5 Enterprise SSD Recommendations - Spiceworks
I know there have been similar posts to this in the past but I was hoping for some updated opinions. Looking to build a couple VMWare ESXi Hosts using a RAID5 format for the SSDs instead of HDDs. Hop... https://community.spiceworks.c Why RAID 5 is OK on SSD Drives? | KC's Blog
First of all, here is why RAID 5 is so bad and has stopped working since 2009. To recap, two things to blame here. UREs (Unrecoverable Read Error) Disk storage capacity Here is an example to illustra... https://www.kjctech.net What are the main points to avoid RAID5 with SSD? - Server Fault
Your reasoning is correct, though you're missing the scale of the problem. Enterprise SSDs are being made with higher endurance MLC cells, and can tolerate very high write-rates. SLC still blows ... https://serverfault.com [請益] RAID5(四顆)比單顆硬碟效能還慢, 怪~ - 看板Storage_Zone - 批 ...
作者williambug (william). 看板Storage_Zone. 標題[請益] RAID5(四顆)比單顆硬碟效能還慢, 怪~. 時間Mon May 18 13:38:07 2015. 最近在公司做實驗, 想要組一套的廉價的PC (為了組一群BigData用的主機群的先期測試) 設備清單如下: CPU:i7-4790 , RAM:8G*4 , M/B:ASUS H97M-E , SSD... https://www.ptt.cc Why not use SSDs on RAID5? | Web Hosting Talk
I see a lot of people saying to avoid SSDs on RAID5 like it's a curse, but why exactly should I avoid putting 3 SSDs in RAID5, and have 2 SSDs in RAID1 and 1 hot-spare SSD? Thanks. Are you trying... http://www.webhostingtalk.com 磁碟陣列要選RAID 5還是RAID 6 引爆網友熱議！ - PCDIY! online
磁碟陣列，提供了容錯或加速，搭配不同層級的磁碟陣列，則可以有不同的功效。常見的RAID 0只有加速功能，最少需要2顆硬碟，RAID 1只有容錯功能，最少需要2顆硬碟，RAID 1+0則兼具加速與容錯功能，最少需要2顆硬碟。比較先進的作法，則有RAID 5與RAID 6，RAID 5同時兼具加速與容錯功能，最少需要3顆硬 ... http://www.pcdiy.com.tw |