Oops - SAF-TE drive probe question.

Gene Milligan Gene_Milligan at notes.seagate.com
Thu Aug 14 14:28:40 PDT 1997


* From the T10 (formerly SCSI) Reflector (t10 at symbios.com), posted by:
* Gene Milligan <Gene_Milligan at notes.seagate.com>
*
I meant to CC the reflector on the message below.

---------------------- Forwarded by Gene Milligan on 08/14/97 02:30 PM 
---------------------------


ashokr at pyramid.com (Ashok Raj) on 08/14/97 02:08:07 PM
To: scsi at Symbios.COM @ INTERNET
cc:  (bcc: Gene Milligan)
Subject: SAF-TE drive probe question.

* From the T10 (formerly SCSI) Reflector (t10 at symbios.com), posted by:
* ashokr at pyramid.com (Ashok Raj)
*
Hi.

Reading the SAF-TE spec iam getting confused if we need to do the following.

the PERFORM SLOT OPERATION comand 0x12h, bit 0 byte 2 of the write 
buffer data mentions 

Prepare for Operation Flag: This flag indicates that the SEP device should 
take action required to make the device in this slot available on the
SCSI bus.

so when we perform a poweron probe, only the SEP device will show up, and 
no attached disks will respond to SCSI commands? if this is true
then after we do a READ ENCLOSURE CONFIG->READ SLOT STATUS, determine
if a drive is there, then do PERFORM SLOT OPERATION, before we start the
drive probe?

Many thanks in advance

Cheers,
ashokr


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