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
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