Question about data compression
Erich Oetting
erich_oetting at stortek.com
Mon Nov 3 10:35:12 PST 1997
* From the T10 (formerly SCSI) Reflector (t10 at symbios.com), posted by:
* Erich Oetting <erich_oetting at stortek.com>
*
Bob.Snively at Eng.Sun.COM wrote:
>An interesting observation was made concerning SSC, at least at its
>revision 10.
>
>I have not found any specification of the interaction between the
>SELECT DATA COMPRESSION ALGORITHM value defined in the Device
>Configuration Page and the numerous managing fields in the
>Data Compression Page. As an example, after having set up the
>Data Compression Page very carefully to compress, can I then disable
>compression
>by setting the SELECT DATA COMPRESSIN ALGORITHM value to zero?
>
>Have I missed something?
In the September SSC/SMC working group meeting we discussed the
conflict between the page and field. From the minutes (97-248-r0):
>5.2 Conflict between Data compression page and field. (Penokie)
>
>George pointed out that the standard does not specify how to handle the
>case where the Data Compression page and the Device Configuration
>Page are both sent. The group decided that the field in the Device
>Configuration page should be ignored if the Data Compression page is
>also sent, and accept this as a valid letter ballot comment.
Does this answer the question, or do we need to discuss the issue
again this week?
Erich Oetting
*
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