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From: chap@art-sy.detroit.mi.us (j chapman flack)
Newsgroups: comp.periphs.scsi,comp.sys.atari.st.tech
Subject: Re: HELP: Seagate ST157N-1 error code...
Keywords: Seagate wanted help ST157N-1
Message-ID: <9104270937.aa01903@art-sy.detroit.mi.us>
Date: 27 Apr 91 13:37:54 GMT
References: <1283@idcapd.idca.tds.philips.nl> <1991Apr22.184054.20179@ecst.csuchico.edu>
Sender: chap@art-sy.detroit.mi.us (j chapman flack)
Reply-To: chap@art-sy.detroit.mi.us (j chapman flack)
Organization: Appropriate Roles for Technology
Lines: 26

>In article <1283@idcapd.idca.tds.philips.nl> wilko@idca.tds.PHILIPS.nl (W.C. Bulte) writes:
>>The Seagate St157N-1 (48Mb, 3.5", SCSI) harddrive of a friend of mine has
>>chosen to display blinking error codes (using the activity LED). We would
>>like to know what they mean. Normally this drive performs a couple of [seeks 
>>on startup, but now it either displays 3 or 6 blinks on the LED. The drive
>>keeps spinning.

According to the ST{251,277,296}N Product Manual (which *might* be similar to
the ST157N as far as blink codes):

One blink: Microprocessor/Internal Memory Test failure
Two blinks: Microprocessor ROM checksum
Three blinks: Controller chip failed to initialize
Four blinks: Controller program RAM test
Five blinks: Data buffer RAM test
Six blinks: Drive is unable to reach and maintain proper spindle speed
Eight blinks: The controller is unable to read its own control microcode
              from the drive.
Nine blinks:  The control microcode can be read but is corrupted.

These conditions all have corresponding sense codes.
-- 
Chap Flack                         Their tanks will rust.  Our songs will last.
chap@art-sy.detroit.mi.us                                   -Mikos Theodorakis

Nothing I say represents Appropriate Roles for Technology unless I say it does.