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- Newsgroups: comp.sys.sun.hardware
- Path: sparky!uunet!camex!lloyd!normc
- From: normc@lloyd.Camex.COM (Norm Caseley)
- Subject: Re: Sun 424Mb disk doesnt spin up until boot time
- Message-ID: <1992Aug28.132605.5080@lloyd.Camex.COM>
- Organization: Camex Inc., Boston MA
- References: <janet.714982388@dunnart>
- Date: Fri, 28 Aug 1992 13:26:05 EDT
- Lines: 22
-
- We have experienced the same problem that you describe and have found
- a hardware solution of removing jumper 3-4 from J6 on the Seagate ST1480N
- drive. (We have not received any of the Fujitsu version of the 424MB drive.)
- This jumper controls the "motor start option" and removing it will force the
- drive to always spin-up on power-up.
-
- There may be an easier solution. From information that we received
- from Sun, it seems that setting the drive target number to either 1 or 3 will
- cause the drives to spin up under control of the boot PROM. Drives that are
- set up as target 0 or 2 will spin up when they are probed during the SunOS
- boot process. So, if you have the freedom to try a different target number
- for your external 424, you may not need to open the box and look for the
- jumper (especially helpfull if you do not have the hardware diagrams). We
- have had success booting from an external 424 hooked up to an IPC that
- contained a 207MB drive.
-
-
-
- Norm Caseley, Camex Inc. 75 Kneeland St. Disclaimer:
- Boston, MA 02111 (617) 426-3577 (X290)
- ARPA: normc%lloyd@husc6.harvard.edu
- UUCP: normc@lloyd.uucp or husc6!lloyd!normc
-