The temperatures depend heavily on your ambient environment but Seagate disks tend to run 5-8C higher than Western Digital drives in the same unit. I have forced my fan speeds to 100% (approx 2500 rpm) and, at the moment, my two Seagate 500GB drives are at 32C while my WD 1TB drive is at 26C. The system is balancing at the moment. When idle for a while these may drop to 30C and 24C. When heavily loaded (e.g., running an F-Secure scan) the temps can rise to 40C and 35C -- even a bit higher before I increased that fan speed.

My Seagate drive temperatures are reasonably similar to yours.

There are several threads addressing this that include numerous temperature readings from other users as well as discussions regarding the use of "SpeedFan" to control the fan speeds, on a "competitive board". (Unfortunately I am not allowed to mention that board here or to link to it over here, but it is one dedicated to the HP MediaSmartServer.) I suspect (and hope) that others will also post their temperature readings here for comparison.

For those who want to see their drive temperatures there are at least two Add-Ins that provide this information: "Disk Management" and "Client Information". The first one provides a console tab that is very analogous to the standard "Server Storage". The second actually allows you to see information from all your client machines on your WHS console. (As before, we are not permitted to post links on this board unless we are the owners of these Add-Ins so you will need to search them out as I am not the author.)

...JohnBick

MSS: HP EX475 + 1TB WD (2TB total), 2 GB mmry, LE-1640, APC UPS, PP1
PC1: Vista/32 Ultimate SP1 w/150 GB Raptor RAID-2 (C) & 320x4 GB RAID-5 data (D)
PC2: Laptop, Win XP Home SP3
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