Ming Zhang wrote:
Hi folks I am testing some HW performance with raid5 with 2.4.x kenrel. It is really troublesome every time I create a raid5, wait 4 hours for reconstruction, and then test some data and then recreate another one and wait again. I wonder if there is any hack or option available to create a raid5 without reconstruct the parity disk. I just have interest to test the performance so do not care about data correctness at this stage.
I did a similar thing a while back. I created the raid and waited for it to sync, I then make dd copies of the raid superblocks. When I blew it up I just dd the clean superblocks back again (saved a 12 hour rebuild time) Having just thought about what you wrote, I guess you are building the raid in different configurationes each time, so my method might not be good for you. Regards, Brad -- "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." -- Douglas Adams - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
