I just was shown this today in another thread. Intels Remap Fragmentation problem on them there drives.
http://arstechnica.com/news/2009/02/...x25-m-ssds.ars
"Two of their writers, pleased as punch with their new X25-Ms, began to be disappointed after long use seemed to slow the drives down. They reran the same benchmarks from their earlier review, and found a dramatic reduction in performance. They then began to run more detailed test, and their article on the results is worth reading.
It turns out that the remapping, which creates a swiss cheese of small fragments in the remap table, causes large files later written to those sectors to take up many small fragments on separate blocks. As drives, age, PCPerspective found, performance decreases dramatically on all kinds of workloads. In some instances, sequential reads were reduced to a mere 22MBps, slower than some laptop hard disks. "
"Neither is there a clear route to resetting the remap table. Intel told PCPerspective it was working on a good solution, but that one isn't available yet"
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