random_page_costs - are defaults of 4.0 realistic for SCSI RAID 1

["Carlo Stonebanks" <stonec.register@xxxxxxxxxxxx>]

Can anyone answer this for me: Although I realize my client's disk subsystem 
(SCSI/RAID Smart Array E200 controller using RAID 1) is less than 
impressive - is the default setting of 4.0 realistic or could it be lower?

Thanks!


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