[OSM-dev] osm2pgsql slim mode, postgis, and hard disk spindles

John Smith deltafoxtrot256 at gmail.com
Fri Sep 4 11:18:18 BST 2009


2009/9/4 Emilie Laffray <emilie.laffray at gmail.com>:

> Yes, it is too bad that SSD drives are still too expensive.
> I was considering for the new machine a RAID 10 (0+1) configuration, but I
> am wondering if a RAID 5 might not be more interesting in the end.

Raid 5 has a lot more performance degredation compared to raid 10 if
the array degrades.

You also have Raid-6, not sure about the performance when a raid 6
array degrades but it can cope with the loss of 2 drives, raid 5 can
only cope with 1.




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