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rpmurray · 04-16-2006, 11:39 AM

Looks like I'm going to need to find a bigger power supply, find some way to stagger the startup of the drives, or find 500GB drives that draw less power on startup.

It seems the Seagate 500GB ST3500641A drives draw about 30 watts apiece on startup, and the power supply is 120 watts. It's looks like there's not much left over for anything else so the server shuts down. Wouldn't be so bad once the drives are running, since they draw less (about 13 watts) once they're running. It's just getting over the hump when they start that keeping things from working.

Anyone have any ideas? I'm not sure what can be done about the power supply, since it's not a standard drop-in unit, but some kludge that Quantum threw together. I know with SCSI drives, I've seen jumpers that can be set to delay startup, but don't see that on these drives or in the docs. I had originally thought of putting Hitachi drives in because they draw less power on startup, but couldn't find anyone selling the ATA version, altough there are plenty of places selling the SATA.

04-16-2006, 11:39 AM	#15
rpmurray Cooling Savant Join Date: Apr 2006 Location: Tennessee Posts: 157	Re: Snap 4000 Upgrade Looks like I'm going to need to find a bigger power supply, find some way to stagger the startup of the drives, or find 500GB drives that draw less power on startup. It seems the Seagate 500GB ST3500641A drives draw about 30 watts apiece on startup, and the power supply is 120 watts. It's looks like there's not much left over for anything else so the server shuts down. Wouldn't be so bad once the drives are running, since they draw less (about 13 watts) once they're running. It's just getting over the hump when they start that keeping things from working. Anyone have any ideas? I'm not sure what can be done about the power supply, since it's not a standard drop-in unit, but some kludge that Quantum threw together. I know with SCSI drives, I've seen jumpers that can be set to delay startup, but don't see that on these drives or in the docs. I had originally thought of putting Hitachi drives in because they draw less power on startup, but couldn't find anyone selling the ATA version, altough there are plenty of places selling the SATA.