Nikolay Ulyanitsky wrote:
I can not comment on "most vendors" but for the PROGRESS RDBMS RAID5
is definitely not recommended. It will work but you will see a
significant reduction in performance. We strongly recommend that our
clients go with RAID10 (as in RAID 1+0). In-house we only use RAID10.
+1
Write performance of RAID5 on hardware MegaRAID SATA 150-6D is *very*
poor.
So? That thing is 1) ancient with what looks like a half-baked chip
solution for raid5 calculations and 2) just comes with only 64MB of cache.
You can get a 3ware card with much more cache (9550 and above) and blow
away that LSI piece of rubbish.
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