26 May
2008
26 May
'08
12:18 a.m.
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.