woody@ritcsh.csh.rit.edu (Craig Woodward) (05/12/91)
I've had the worst problems with a ST250R. Now I face another, it seems that the drive dosent like to spin up. I turned it on one day after a rest from a long period of activity, and it made this little squeel and stopped. I took the drive out of the assembly and shook it (torqured it a little to rotate the disks) and tried again, it worked. Now the problem-- it like to be torqued every time I leave it off for more that a few hours. Normaly this is not a problem because it's usualy on, butI'd thather not go climbing in there every time I want to restart the computer. Any clue as to why this is happening or how to correct it would be appreciated. -Craig Woodward -- "When I am working on a problem, I never think of beauty ... but when I'm done, if the solutoin isn't beautiful, I know it is wrong." -Rev. Buckminister Fuller "I most often find that people feel it easier to be a result of the past than a cause of the future" - ANON Woody@ritcsh.csh.rit.edu (@CSH@RIT.NRH.FISH.E.ROOM)
carl@p4tustin.UUCP (Carl W. Bergerson) (05/23/91)
woody@ritcsh.csh.rit.edu (Craig Woodward) writes: > > I've had the worst problems with a ST250R. Now I face another, it seems that > the drive dosent like to spin up. I turned it on one day after a rest from a > long period of activity, and it made this little squeel and stopped. I took > the drive out of the assembly and shook it (torqured it a little to rotate the > disks) and tried again, it worked. Now the problem-- it like to be torqued > every time I leave it off for more that a few hours. Normaly this is not a > . . . What Woody has described is a failure mode commonly known as "stiction" in which the heads adhere to the platters and cause the disk to not spin up. His solution of rotating the platters slightly is the recommended bandaid. The fix is to have a qualified technician clean or replace the disk platters. Stiction is a very common problem with the Seagate ST225/ST238R and ST251/ST277R drives (ST250R is not a valid Seagate model number). If there's a FAQ for this news group this certainly ought to be in it. Carl -- Carl Bergerson uunet!p4tustin!carl Point 4 Data Corporation carl@point4.com 15442 Del Amo Avenue Voice: (714) 259 0777 Tustin, CA 92680-6445 Fax: (714) 259 0921
ins845b@monu4.cc.monash.edu.au (mr k.l. lentin) (05/24/91)
In article <3849@p4tustin.UUCP> carl@p4tustin.UUCP (Carl W. Bergerson) writes: >woody@ritcsh.csh.rit.edu (Craig Woodward) writes: >> >> I've had the worst problems with a ST250R. Now I face another, it seems that >> the drive dosent like to spin up. I turned it on one day after a rest from a >> long period of activity, and it made this little squeel and stopped. I took >> the drive out of the assembly and shook it (torqured it a little to rotate the >> disks) and tried again, it worked. Now the problem-- it like to be torqued >> every time I leave it off for more that a few hours. Normaly this is not a >> . . . > >What Woody has described is a failure mode commonly known as "stiction" in >which the heads adhere to the platters and cause the disk to not spin up. >His solution of rotating the platters slightly is the recommended bandaid. > >The fix is to have a qualified technician clean or replace the disk >platters. > >Stiction is a very common problem with the Seagate ST225/ST238R and >ST251/ST277R drives (ST250R is not a valid Seagate model number). > >If there's a FAQ for this news group this certainly ought to be in it. > >Carl >-- >Carl Bergerson uunet!p4tustin!carl >Point 4 Data Corporation carl@point4.com >15442 Del Amo Avenue Voice: (714) 259 0777 >Tustin, CA 92680-6445 Fax: (714) 259 0921 I have a st251 with this problem and its been to the repairs 3 times and they NEVER ccould even detect the porblem. I suspect this is beacus the car trip there unsticks the drive and then they powered it up and down over and over again and it never happened. I told them it had to sit over night at least and they said they tried that but it still spun up. Isuspect they moved it during that time. They said it was a power problem but is a 220watt supply with NOTHNG else but the drive connected to it won't do then nothing will (esp. with a motherboard and three opther drives connected) Now I have a sticky drive and the repairs are out of warranty!!!! And my family don't take too well to the electricity being consumed in never turning the computer off! |/ |\evin