Hello,

Thank you for all the inputs. Here is a joint response:

Saurabh - That is what I thought, but was wondering if I was missing
something

Andrew - OK, I get your point, and should have thought of that. Multiple
operations
will result from multiple partitions on a single disk, so that both
read/write will be
slower. Using multiple, smaller disks would definitely be better but adds
to the
server costs. P.S. Not all of us have slush funds to throw away half one's
storage
with a RAID 1-0, though I do wish we could.

Arun - I meant multiple partitions on each disk. E.g., three 1TB partitions
on a 3TB
disk, the idea being to minimise space lost. Also, on hardware RAID vs.
software
RAID, my impressions from reading blogs was that: (a) Performance penalty is
small. Yes, I get your point about the parity calculations being more
complex for
RAID 5/6, but how big s that? (b) There are horror stories about how
hardware RAID
partitions become non-recoverable if the particular RAID controller card
dies. Even
a replacement of the same model sometimes does not work. These might be war
stories, but they scare me.

I guess that I can try and experiment with read/write speeds with RAID6.

Regards,
Gora
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