dlb25@LOCAL.UUCP (Dave Besselievre) (06/06/91)
I purchased two Used Quantum Q280 SCSI disk drive lately and am having problems getting the drives to working. My controller is seeing the drive at all SCSI addresses. On another Segate Drive I had a similar problem and this turned out to be a setup jumper problem. Is there anyone out there that could sened me a disciption of the Jumpers on the Drive. From the back of the drive the following configuration is present. ----------------------------------------------------------- | |1 2 3 4 5 6 7 8 | | SCSI cable connector | | | |8 jumper pairs | ___________________________________________________________ Thereis also an 8 pairs of jumper on the bottom of the electronic board labeled as follows. o o o o o o o o o o o o o o o o A0 A1 A2 WS EP SS R0 P1 all are open except p1 which is jumpered. Thank you for any help you can give me _________________________________________________ | ____ ___ ____| | | / \ __ \ / | David L. Besselievre | || / |\ ___| Chemical Abstracts Service | || | | | Columbus, OH 43210 | || | | | | | \ ____ \____/|\____| osu-cis!chemabs!dlb25 | | | dlb25@cas.bitnet | -------------------------------------------------
billsey@agora.UUCP (Bill Seymour) (06/07/91)
In article <9106061333.AA09724@cas.org>, Dave Besselievre writes: > I purchased two Used Quantum Q280 SCSI disk drive lately and am having problems > getting the drives to working. My controller is seeing the drive at all SCSI > addresses. On another Segate Drive I had a similar problem and this turned > out to be a setup jumper problem. > > There is also an 8 pairs of jumper on the bottom of the electronic board > labeled as follows. > > > o o o o o o o o > o o o o o o o o > A0 A1 A2 WS EP SS R0 P1 > > all are open except p1 which is jumpered. A0, A1, A2 are SCSI ID jumpers. Set these to the ID you need. WS is the Wait Spin jumper. This should probably be left off. EP is the Enable Parity checking jumper. Set it as appropriate. SS is the Self Seek option test. Not used during normal operation. RO is the reset option, leave this one off too... P1 is the spare jumper. Doesn't do anything... Sounds like you're sitting at the same ID as your host... But that would suprise me, since you say your jumpers put you at ID 0, not normally used for a host... > Thank you for any help you can give me > _________________________________________________ > | ____ ___ ____| | > | / \ __ \ / | David L. Besselievre | > || / |\ ___| Chemical Abstracts Service | > || | | | Columbus, OH 43210 | > || | | | | > | \ ____ \____/|\____| osu-cis!chemabs!dlb25 | > | | dlb25@cas.bitnet | > ------------------------------------------------- -Bill Seymour nesbbx!billsey@agora.uucp or nesbbx!billsey@agora.rain.com ***** American People/Link Amiga Zone Hardware Specialist NES*BILL ***** Bejed, Inc. NES, Inc. NAG BBS NES BBX BBS Home Sometimes (503)281-8153 (503)246-9311 (503)656-7393 (503)640-9337 (503) 640-0842
rusty@fe2o3.laurel.md.us (Rusty Haddock) (06/07/91)
In article <9106061333.AA09724@cas.org> dlb25@LOCAL.UUCP (Dave Besselievre) writes: >I purchased two Used Quantum Q280 SCSI disk drive lately and am having >problems getting the drives to working. My controller is seeing the >drive at all SCSI addresses. On another Segate Drive I had a similar >problem and this turned out to be a setup jumper problem. > >Is there anyone out there that could sened me a disciption of the >Jumpers on the Drive. From the back of the drive the following >configuration is present. > > ----------------------------------------------------------- > | |1 2 3 4 5 6 7 8 | > | SCSI cable connector | | > | |8 jumper pairs | > ___________________________________________________________ The connector next to the SCSI cable connector is labelled "FACTORY USE ONLY". Well, it is in my manual. :-) > Thereis also an 8 pairs of jumper on the bottom of the electronic board > labeled as follows. > > o o o o o o o o > o o o o o o o o > A0 A1 A2 WS EP SS R0 P1 > > all are open except p1 which is jumpered. This is where you wanna be. Currently, you're configured for SCSI address (A0-A2) zero (0), SCSI parity (EP) disabled, wait spin (WS) disabled, Self Seek Test (SS) disabled, P0 (not R0) and P1 are spare shorting plugs (or jumpers) and don't affect any function of the drive. The address is set with A2, A1, A0 with A2 being the most significant bit. For SCSI address 6 (the factory default) install jumpers at A2 and A1. I don't see anything in my manual about what happens when it set to SCSI address 0 -- I've seen listening to all SCSI addresses when set thusly on other manufactures' drives. Factory setting is six. Wait Spin (WS) is for having the drive wait until a START/STOP command is issued before spinning up to operating speed. This is useful if you have a number of drives connected and don't want them all (or at least the Q280) to spin up at once (possibly nuking your power supply :-). Not having this pair jumpered means spin up to speed as soon as power is applied and it should be ready within about 30-seconds. Factory setting is no jumper. Enable Parity (EP), when installed, causes the SCSI controller on board to perform parity checking of data across the SCSI bus otherwise the checking is not done. Factory setting is to have a jumper here -- probably a good idea!!! Self Seek Test (SS) is for exercising the actuator of the drive by performing a 'butterfly' seek pattern from power up until a hardware error occurs or power down. Factory setting is, naturally, unjumpered. Looks like you're gonna need a coupla jumpers. >Thank you for any help you can give me No problem. I've had my Q280 for 4.5-years with nary a problem. It does get a bit warm and it's a little noisey but I've gotten a couple of Quantum's 3.5" drives so I'm a little spoiled. :-) -Rusty- -- DOMAIN: rusty@fe2o3.laurel.md.us PATH: {uunet,rutgers}!mimsy!fe2o3!rusty If someone points a quad-vectored, hyper-thermic, cosmo blaster at you it's a safe bet that you're about to become toast.