[CentOS] Possible to use multiple disk to bypass I/O wait?

John R Pierce pierce at hogranch.com
Thu Jun 9 17:26:10 UTC 2011


On 06/09/11 2:24 AM, Emmanuel Noobadmin wrote:
> Alternatively, if I mdraid mirror the existing disk, would md be smart
> enough to read using the other disk while the first's tied up with the
> first process?

that woudl be my first choice, and yes, queued read IO could be 
satisfied by either mirror, hence they'd have double the read performance.

next step would be a raid 1+0 with yet more disks.

-- 
john r pierce                            N 37, W 122
santa cruz ca                         mid-left coast




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