@ctmh @fulkrum 有ZFS的类RAID5实现,只要他8块硬盘的批次/出厂时间各不相同,那同时损坏2个的概率会大大降低。损坏一个?立即安排重建就完事了。也可以配置成RAID-Z2 来防御2个硬盘同时损坏。
@tonny @fulkrum @ctmh 我感觉这是因为同一批次的硬盘大概率会一起坏掉。重建RAID5对硬盘的负荷比较大,在某种程度上可能加速了阵列中硬盘的损坏。
@tonny @ctmh@m.cmx.im @msd2 有个问题,我准备用12Gbps的SAS 6TB硬盘,HBA卡有必要用12Gbps的么?
@tonny @ctmh@m.cmx.im @msd2 到TrueNAS论坛调研了一番,结论是对机械硬盘来说6Gbps HBA够用了[1]([1] https://www.truenas.com/community/threads/hba-suggestion-for-a-2u-20-30tb-build.74235/post-515226
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@tonny @ctmh@m.cmx.im @msd2 到TrueNAS论坛调研了一番,结论是对机械硬盘来说6Gbps HBA够用了[1](
[1] https://www.truenas.com/community/threads/hba-suggestion-for-a-2u-20-30tb-build.74235/post-515226