RE: Create Lock to Eliminate RMW in RAID/456 when writing perfect stripes

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Hey Doug,

I have a comment about the last line of your message -- 'Then again, if this is too much of an "edge case", I will just keep my patches in-house.'

As the use of SSD's in RAID configurations becomes more common, and SSD's become faster, the case you're talking about will be a major issue preventing customers from getting all that they expect from the equipment they purchased.  I would encourage you to continue pursuing better performance.

Bob Kierski
Senior Storage Performance Engineer
Cray Inc.
380 Jackson Street
Suite 210
St. Paul, MN 55101
Tele: 651-967-9590
Fax:  651-605-9001
Cell: 651-890-7461

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