On Sun, Apr 17, 2005 at 09:02:20AM -0700, delusion@xxxxxxxxxxxx wrote:
> Has anyone had experience/success getting 600MB/s or more (seq
> writes) off XFS via a raid card like the Areca 16port sata?
Are you sure the card can do that IO rate?
> The card does a 128k stripe and has 1GB of ram but I can't seem to
> get the right xfs setup and write patterns.
Could you explain in more details what you have and what you are
doing?
> Any tips getting the best sequenial write performance?
It depends, large streeam O_DIRECT writes to preallocated space is
probably worth experiementing with. I would also let mkfs.xfs know
about the underlying RAID topology and see if that helps.
600MB/s is a fair amount of bandwidth, you probably need 2x or 3x this
in the system to achieve this and depending on what you are doing that
might not even be enough --- more details?
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