From nobody@FreeBSD.ORG Sat Mar 27 08:50:15 1999
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Date: Sat, 27 Mar 1999 08:50:15 -0800 (PST)
From: regisr@regix.com
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Subject: Documentation add 
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>Number:         10819
>Category:       docs
>Synopsis:       Documentation add
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    nik
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sat Mar 27 08:50:00 PST 1999
>Closed-Date:    Sat May 29 06:03:40 PDT 1999
>Last-Modified:  Sat May 29 06:04:15 PDT 1999
>Originator:     regis rampnoux
>Release:        3.1-STABLE
>Organization:
>Environment:
SCSI Card:

<Adaptec 2940A Ultra SCSI adapter> rev 0x01 int a irq 9 on pci0.10.0
aic7860 Single Channel A, SCSI Id=7, 3/255 SCBs

>Description:
Handbook 12.5.5.3. SCSI drives:

Seagate STD 18000N

The boot message identifier for this drive is 
"<ARCHIVE Python 04687-XXX 6580> Removable Sequential Access SCSI-2 device"
This is a DAT DDS-2 drive.
Native capacity is 4GB when using 120m tapes. 
This drive supports hardware data compression.
Switch 4 controls MRS (Media Recognition System). 
MRS tapes have stripes on the transparent leader. 
Switch 4 OFF enables MRS. Switch 4 ON disables MRS.

Parity is controlled by switch 5. Switch 5 ON to enable parity control.
Compression is enabled with Switch 6 OFF. It is possible to override 
compression with the SCSI MODE SELECT command (see the mt command).

Data transfer rate is 800kB/s.

>How-To-Repeat:
Buy a drive ? ;-)))
>Fix:
Copy the documentation if you think that this can help someone...

>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-doc->nik 
Responsible-Changed-By: nik 
Responsible-Changed-When: Fri May 28 16:55:55 PDT 1999 
Responsible-Changed-Why:  
Will do. 
State-Changed-From-To: open->closed 
State-Changed-By: nik 
State-Changed-When: Sat May 29 06:03:40 PDT 1999 
State-Changed-Why:  
Committed, thanks. 
>Unformatted:
