The power consumption argument was also applied to SSDs partly replacing HDDs in the server - anyone know how adoption of that is progressing? All tests I've s

The power consumption argument was also applied to SSDs partly replacing HDDs in the server - anyone know how adoption of that is progressing? All tests I've seen seems to conclude that the power-savings are marginal, if there at all. It seems that the only way SSDs can save real power compared to traditional harddisks is if you (because of troughput-capacity related requirements) can replace several traditional disks with one SSD.