Software RAID 0应该不如上SSD, Hardware RAID 0跟SSD没有实际测试, 不清楚.
wiki上有一些性能比较 [1]
[1] http://en.wikipedia.org/wiki/Standard_RAID_levels#Comparison
2014-05-08 22:28 GMT+08:00 Xi Shen <david...@gmail.com>:
> Hi,
>
> 我想把笔记本上的光驱换成硬盘,然后用adadm/lvm配一个RAID0,不知道能对读写性能提升多少。有没有人试过啊?如果只是提升一点点的话,就没意义了。不如花钱上SSD
ssd ➕ 机械硬盘+ dm-cache/bcache/flashcache/enhanceio 可以带来很大的性能提升。
Software RAID 0应该不如上SSD, Hardware RAID 0跟SSD没有实际测试, 不清楚.
wiki上有一些性能比较 [1]
[1] http://en.wikipedia.org/wiki/Standard_RAID_levels#Comparison
2014-05-08 22:28 GMT+08:00 Xi Shen <david...@gmail.com>:
> Hi,
>
> 我想把笔记本上的光驱换成硬盘,然后用adadm/lvm配一个RAID0,不知道能对读写性能提升多少。有没有人试过啊?如果只是提升一点点的话,就没意义了。不如花钱上SSD
ssd ➕ 机械硬盘+ dm-cache/bcache/flashcache/enhanceio 可以带来很大的性能提升。
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软raid0不提升性能,只扩大容量,和硬的不一样。
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软raid0不提升性能,只扩大容量,和硬的不一样。
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不用比,拖拉机和赛车比赛。
Hi,我想把笔记本上的光驱换成硬盘,然后用adadm/lvm配一个RAID0,不知道能对读写性能提升多少。有没有人试过啊?如果只是提升一点点的话,就没意义了。不如花钱上SSD
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现在很多自称带raid芯片的主板上上自带的都是软的,而且是专门给windows用的,我刚被坑惨了