Call for definition of WORM for SSC-3

Paul.A.Suhler at Paul.A.Suhler at
Thu Jul 15 11:02:14 PDT 2004

* From the T10 Reflector (t10 at, posted by:
* Paul.A.Suhler at

Hi, Ralph.

I think that this works better as a feature of existing device types,
rather than as a new type.  Certainly all of the backup applications will
break if the tape drives start reporting a peripheral device type other
than 1.

Nevertheless, Kevin may be able to snarf some model text and other ideas
|from SBC.  Thanks for the pointer.


Paul Suhler

                      "Ralph O. Weber"                                                                                                 
                      <roweber at        To:       t10 at                                                                   
                      >                        cc:                                                                                     
                      Sent by:                 Subject:  Re: Call for definition of WORM for SSC-3                                     
                      owner-t10 at                                                                                                
                      07/15/2004 06:59                                                                                                 

* From the T10 Reflector (t10 at, posted by:
* "Ralph O. Weber" <roweber at>
How does the proposed SSC-3 work relate to the Write-once device
(e.g., some optical disks) device type defined in SBC and made
obsolete in SBC-2?

If this work is important, would it be more appropriate to revise
the SBC definition in SBC-2 instead of making the definition

Please note that I am not at all thrilled by the idea of devoting
two scarce device type codes to a single device type.

All the best,


Kevin D Butt wrote:

> The SSC-3 working group is looking to define WORM as it relates to
> streaming devices. There has turned out to be a wide range of
> definitions among the four companies who made comments. As such, we
> wish to request all that have an interest to submit their definition
> of what WORM is.
> Thanks,
> Kevin D. Butt
> Fibre Channel & SCSI Architect, IBM Tape Microcode,
> 6TYA, 9000 S. Rita Rd., Tucson, AZ 85744
> Tie-line 321; Office: 520-799-5280, Lab: 799-5751, Fax: 799-4138,
> Email: kdbutt at

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