[Sunhelp] Help reqd for SCSI errors !!

[Filip Van Den Bergh]

I had a simular problem, but I didn't manage to solve it yet. All I can say is that SCSI is completely backwards compatible. The controller will use the speed of the weakest component. Did you used jumpers to force SE  + narrow scsi? 
At Sun, they told me that there is intelligence between the externe scsi connecter and the intern cable of the multipack. Although I don't think that's the problem. What you can try, is to use an other 68 pins intern multipack with a 68 to 50 pins cable. Normally, that should work!

Hope you find a solution,


Filip 


>>> "shivraj yadav" <shivrajyadav at hotmail.com> 10/27 8:24 pm >>>

Thanks for your suggestions .....

My SPARCSERVER 1000 had normal 50 pin SCSI HDD's with  the same cable in the 
external shoe-box. Then we replaced them with higher capacity HDD which came 
... i guess in Ultra SCSI format, i.e they were with miniature 68 pin 
connector.
So the cable being the same i.e 50 pin, i used a 68 pin - to - 50 pin 
converter, to attach the cable to the external HDD.
is this arrangement the cause of these errors ? Will there be any problems 
bcos of the 50 pin SCSI cable & the 68 pin HDD with the convertor ????
Do i have to change the cable to Ultra SCSI cable ????
Please do lemme know ......

>From: "Rey S. Castro" <arcee at sun.com.ph>
>Reply-To: sunhelp at sunhelp.org 
>To: sunhelp at sunhelp.org 
>Subject: Re: [Sunhelp] Help reqd for SCSI errors !!
>Date: Fri, 27 Oct 2000 15:20:11 +0800
>
>hi,
>
>You have to be certain on the external disk you are attaching on the
>SS1000.  Are you using  ULTRASCSI disks? If so, there is a specific cable
>for that device, check the information at the back of the multipack cover (
>if you are using an UltraSCSI multipack).
>
>-rey-
>
>
>
>
>Shivraj Yadav CS -hyd wrote:
>
> > Hi Friends!
> > I am having a SPARC SERVER 1000 with 2 internal HDD & around 4 external
> > HDD, one of 'em being kept in a shoe-box.
> > Nowadays while booting also otherwise when the system is functioning, i
> > keep on getting the following messgaes on the console.....
> >
> > WARNING: /io-unit at f,e1200000/sbi at 0,0/dma at 0,81000/esp at 0,800000 (esp2):
> > 1)UNIX:Target 3.0 reducing sync transfer rate
> > "SCSI transport failed : reason 'time out': retrying command
> > 2) "SCSI transport failed : reason 'reset':retrying command
> > 3) "Connected command timeout for target 3.0 "
> >
> > I need help in finding out where the problem is. Is it is the HDD or the
> > cable connecting to it ?????
> > What's the difference in the above three messages.
> > Thanks in advance .....
> > SHIVRAJ
> >
> > _______________________________________________
> > SunHELP maillist  -  SunHELP at sunhelp.org 
> > http://www.sunhelp.org/mailman/listinfo/sunhelp 
>
>

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