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Re: Promise Fasttrack s150 TX4 raid issues



Homme R. Bitter wrote:

On Sun, 2003-08-10 at 20:38, Jim Perrin wrote:


As of right now I only have sda, and am using the binary drivers from Promise. My problem came about trying to add a label option to the partition, I kept getting duplicate echos that would not allow me to mount via label=/foo but I could mount perfectly using /dev/sda. Thanks for your response. I have not had any experience with the open source drivers yet. Do they yield any performance boost? If you could post a link to or about them I would be grateful. Thanks again



The open source drivers are part of the 2.4.current kernel source. Alternatively, you could look at

http://people.redhat.com/arjanv/pdcraid/

This is the original page of the author of the driver. My experience with them is that they give you the option to use a stock
or modified stock (RedHat) kernel, but they do not flush the IDE drives buffers on reboot/powerdown. Performance boost is not what I have tried,
I just wanted a plug-and-play supported solution and stopped
investigating into the performance of the drivers once I found out how
to get them running and the fact that they don't flush the cache on my
drives. On a whole, my personal experience is that it is wise to stay
away from the promise cards on dedicated linux machines, but pay a
little extra and go for 3ware. They offer true hardware raid and have
decent opensource drivers in the linux kernel implemented. I run
production on both Promise and 3ware and I must say that I am personally
more satisfied with 3ware.



These only work on the pata cards, and not the sata cards.


--
Once you have their hardware. Never give it back.
(The First Rule of Hardware Acquisition)
Sam Flory  <sflory rackable com>





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