Max Power wrote:
# dd if=/dev/zero of=/dev/mapper/BigData-data \
# bs=1G count=1 oflag=direct
----
I don't know how it interacts in the case you have setup, but
oflag=direct usually has 'dd' writing to the physical device -- not any
system
cache. I don't know if lvm's cache changes that behavior, but you might
try it w/o the direct flag?
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