買了10多顆512e盤(WD RED) 3TB重建array..
結果...
WD RED 3TB x8, R5, 256KB, RA, WB, DIO, DCP
bad I/O, <270MB...
its I/O performance really sucks...
fuxking terrible.....

之前查詢到如下資訊從LSI KB:...
4K support is mentioned in LSI MegaRAID firmware release notes, and is actively being worked on, but it is not yet completed and officially supported.

512e is supported with LSI MegaRAID LSISSAS2108-based controllers (e.g. 9260/9261/9280) starting with the MR4.8 code set release.

512e is supported with LSI MegaRAID LSISSAS2208-based controllers (e.g. 9265/9271/9285) starting with the MR5.5 code set release.


但是I/O太爛了, 只好詢問一下LSI FAE...
LSI Support 2014-04-07 12:08:00 PM
Hello

Good morning. We don't support 512e HDD right now. Sorry. Our firmware does not support for now.

Thanks

FUxKS....
FUxK YOU LSI....
WHAT A FUCKING BULLSHXT ANSWER....
enable512eSupport=0 from tty log...