RE: RAID 5 performance problems

Ezra Nugroho (ezran@goshen.edu)
04 Apr 2003 09:39:09 -0500


> hdc: host protected area => 1
> hdc: 234441648 sectors (120034 MB) w/2048KiB Cache, CHS=232581/16/63,
> UDMA(33)

Your hdc is still running at udma(33). This is also part of the raid,
right? This will slow the whole thing down since in raid 5 write is done
to all disks simultaneously. Before the system finishes writing to the
slow drive, the write is not done yet.

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