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Thread ID: 72930 2006-10-01 05:43:00 SCSI drive won't spin up.. supertrouper (6665) Press F1
Post ID Timestamp Content User
488423 2006-10-01 05:43:00 I've got an old 9.1Gb SCSI Ultra-wide drive that won't spin up. When I power it on, the small green LED on the end of the drive just sits there flashing. It's a continuous flashing (as opposed to a "code").

All the jumpers are set correctly and I've even tried giving it a "bump" in case the heads/spindle were stuck.. but the flashing starts as soon as the power comes on, not even enough time for the drive to sense that it could be stuck so I don't think it's that.

It's like an electronics fault with the drive electronics on the underside of the drive.

I've Googled for info as to what a flashing LED means on these drives and can't find anything.
supertrouper (6665)
488424 2006-10-01 05:56:00 See whether the drive will respond to a SMART test. If it can, it may tell you whether there's a physical problem with the drive. You need specialised software to use this ability on most platforms (e.g. smartmon on Linux). TGoddard (7263)
488425 2006-10-01 09:33:00 Mmm, good idea but I forgot to mention that the SCSI interface card can't see the drive either when the system is booting up. When it scans through the SCSI device IDs (0-15) it doesn't detect the drive.
Consequently a test such as SMART won't be of much use until the adaptor can at least recognise that there is a drive attached to it.
supertrouper (6665)
488426 2006-10-02 03:21:00 SCSI can be tricky. :D :(

It's probably not spinning up because the interface isn't seeing it, so it's never getting a command to turn the motor on.

The first thing to look for is termination. If it's the only device on the bus, it must be terminated. There will be (probably :D) a switch for that. (Some cables have a termination packge on the end connector, so use that one for the drive, if so, and you won't need the drive's internal terminator).

The interface must be terminated, but that's often automatic.

If you are lucky, that will be the only problem, and the drive will burst into life. Beyond termination, things start to get complicated.
Graham L (2)
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