Joe Landman wrote:
Its a software RAID implementation pretending to be a hardware RAID
implementation. They are rarely if ever as good as MD. Many of them
in Linux will invoke dm (the "other" RAID engine) as dm has "support"
for fake-raid. Note that we have lost data (multiple times) with
dm+fake-raid in testing, so we don't recommend its use in important
machines (ones which you can't afford to lose). This could be due to
bad drivers for the chips in question, but we aren't taking chances.
Hello Joe,
I would like to know specifically what models of LSI boxes are software
RAID implementation pretending to be a hardware RAID implementation. I
have a few LSI boxes where I work, and your post made me think if they
really are Hardware RAID implementation.
I have the LSI 2822(old), LSI 4900 & also LSI 7900 controllers based
storage.
How do we differentiate between the software and hardware RAID
implementations. ANY visual difference?, are they identifiable?.
Richard.
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