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        - Sun Proprietary/Confidential: Internal Use Only -
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                        FIELD INFORMATION NOTICE
                  (For Authorized Distribution by SunService)

FIN #: I0435-1

Create Date: Oct/16/98

Keywords: 

DLT7000s may exhibit poor performance due to an incorrect st.conf file entry.

Top FIN/FCO Report: No

Products Reference: /kernel/drv/st.conf entry

Product Category: Storage / Tape

Product Affected: 

Mkt_ID   Platform   Model  Description            Serial Number
------   --------   -----  -----------            -------------
Systems Affected
----------------

   -     ANYSYS        -   System Platform Independent     -

X-Options Affected
------------------

SG-XLIBDLT1-280G   -   -   StorEdge L280 280-560GB DLT 7000 Desktop  -
SG-XLIBDLT2-280G   -   -   StorEdge L280 280-560GB DLT 7000 Rackmnt  -
SG-XLIBDLT1-1TB	   -   -   StorEdge L1000 Library Deskside    -	
SG-XLIBDLT4-1TB	   -   -   StorEdge L1000 Library Deskside    -	
SG-XLIBDLT1R-1TB   -   -   StorEdge L1000 Library Rackmount   -
SG-XLIBDLT4R-1TB   -   -   StorEdge L1000 Library Rackmount   -
SG-XTAPDLT1-1TB    -   -   StorEdge DLT 7000 Drive for L1000	
X6073A     -       -       StorEdge L1800 w 2 DLT 7000 drives       -
X6074A     -       -       StorEdge L1800 w 4 DLT 7000 drives       -
X6075A     -       -       StorEdge L3500 w 2 DLT 7000 drives       -
X6076A     -       -       StorEdge L3500 w 7 DLT 7000 drives       -
X6063A     -       -       35-70GB DLT 7000 for L1800 or L3500      -
X6060A     -    -   35-70GB DLT 7000 FlexPack w/68-68pin SCSI cable  -
X6061A     -    -   35-70GB DLT 7000 FlexPack w/50-68pin SCSI cable  -
X6062A     -    -   35-70GB DLT 7000 FlexPack w/68-68pin SCSI cable  -

Parts Affected: 

Part Number   Description   	 Model
-----------   -----------   	 -----
370-2847-0X   DRV,DLT 7000,QNTM    -   

(SCSI Devices)
Type  Vendor  Model   Serial Number(Min) Serial Number(Max) Firmware
----  ------  ------- ------------------ ------------------ --------
Tape  Quantum DLT7000       -                  -               -

References: 

BugId:  4056076    
MANUAL: 805-0648-10  35-70 Gbyte SPARCstorage DLT7000 Tape Drive 
MANUAL: 805-1034-10  Sun Enterprise Tape Library 7/3500 Facilities 
                     Planning and Installation Guide

Issue Description: 

The /kernel/drv/st.conf file entries are incorrect in Solaris 2.5.1 and  
2.6 for the DLT7000 drive.  The use of an incorrect st.conf file entry  
will cause tape format incompatibility and poor device performance.  In
addition, the host system will not recognize the tape device as a DLT-    
7000, but as a generic tape device and will assign improper tape density    
codes and device type to tape drive.  Example shown below:

The incorrect st.conf file entry is as follows:

	"Quantum DLT7000",      "Quantum DLT7000", "DLT7k-data",
DLT7k-data = 	1,0x36,0,0x1D639,4,0x82,0x83,0x84,0x85,2;

Implementation: 

---
        |   |   MANDATORY (Fully Pro-Active)
         ---    
         
  
         ---
        |   |   CONTROLLED PRO-ACTIVE (per Sun Geo Plan) 
         --- 
         
                                
         ---
        | X |   REACTIVE (As Required)
         ---

Corrective Action: 

To avoid the potential problems with DLT7000 configuration, as des-
cribed above, verify that the current /kernel/drv/st.conf entry is 
incorrect, if so, make the appropriate modifications as described 
below:

The correct /kernel/drv/st.conf entry:  (QUANTUM in uppercase)
 
	"QUANTUM DLT7000",      "QUANTUM DLT7000", "DLT7k-data";
DLT7k-data = 	1,0x36,0,0x1D639,4,0x82,0x83,0x84,0x85,2;

Comments: 

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Implementation Footnote: 

________________________

i)   In case of MANDATORY FINs, Enterprise Services will attempt to contact   
     all affected customers to recommend implementation of the FIN. 
        

ii)  For CONTROLLED PROACTIVE FINs, Enterprise Services mission critical sup-   
     port teams will recommend implementation of the FIN (to their respective 
     accounts), at the convenience of the customer. 


iii) For REACTIVE FINs, Enterprise Services will implement the FIN as the need  
     arises.
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