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| Title: | Jensen Support Information | 
| Notice: | FOR OFFICIAL SUPPORT SEE 4.11 | 
| Moderator: | caly70.ayo.dec.com::Gordon | 
|  | 
| Created: | Tue Feb 08 1994 | 
| Last Modified: | Fri Jun 06 1997 | 
| Last Successful Update: | Fri Jun 06 1997 | 
| Number of topics: | 616 | 
| Total number of notes: | 2534 | 
607.0. "External and internal disks" by 45862::HILTON (Save Water, drink beer) Wed Apr 09 1997 14:34
    I have a DEC 2000/300 with a single Adaptec 1742, connected internally
    to the CD-ROM, two RZ28M, and one RZ26l disk.
    
    I have tried to connect a Storageworks BA353 with two RZ26 disks and a
    TLZ09.
    
    I've had all sorts of problems, the system can't see the TLZ09 from
    console whatever SCSI ID I set it to, however I settled on leaving it
    out and it could see the 2 RZ26 disks in the pizza box.
    
    However after getting NT 4.0 workstation up and running I got frequent
    hangs and crashes.
    
    Switching off the BA353 and my problems have gone away.
    
    Any idea? I logged a hardware call and the TSC said I needed to
    purchase a second Adaptec controller, which seemed a bit over the top!
    
    Cheers,
    
    Greg
| T.R | Title | User | Personal Name
 | Date | Lines | 
|---|
| 607.1 |  | TARKIN::LIN | Bill Lin | Wed Apr 09 1997 15:16 | 10 | 
|  |     re: 45862::HILTON
    
    Hi Greg,
    
    My memory is failing... but I seem to recall the recommendation NOT to
    attach any devices to the external port of the primary 1742.  Signal
    integrity on that particular SCSI bus is very picky.  Use a secondary
    SCSI card.
    
    /Bill
 | 
| 607.2 |  | ZIMBRA::BERNARDO | Dave Bernardo, VMS Engineering | Wed Apr 09 1997 23:47 | 4 | 
|  |     I've done this, but you've got to be very careful with the
    scsi cable length and termination.
    
    d.
 | 
| 607.3 |  | 45862::HILTON | Save Water, drink beer | Fri Apr 18 1997 09:57 | 3 | 
|  |     Ok, anyone got a spare 1742/40 I could have?
    
    Greg
 |