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AIX
mkvg on iscsi disk won't work (6.1)
Post 302421930 by mr.aart on Monday 17th of May 2010 05:14:37 AM
05-17-2010
Sorry for posting twice in a row, but it seems more appropriate than an edit to me :-)
As good citizenship mandates, hereby I'm back with what seems to be a valid explanation. After all, it seems that it is not an AIX issue, but an issue of AIX in conjunction with stgt.
Apparently mkvg in AIX, and in AIX only from what I found out so far, uses a SCSI "WRITE AND VERIFY" command, also known as opcode 0x2E. This opcode is a rather obscure one, that's rarely used, and also one that is not implemented in stgt. Since, from what I was told, mkvg is the only command that uses this function, everything else works nice and dandy.
As it looks now, there is no possible way of making this work with the software as it is. I've yet to find out whether ietd suffers from the same lack. For that I _will_ use the edit function (if no one replied in the mean time) ;-)
For completeness, here is the link to the Usenet tread on this peculiar subject: mkvg on iscsi disk won't work (6.1) - comp.unix.aix | Google Groups
Apparently mkvg in AIX, and in AIX only from what I found out so far, uses a SCSI "WRITE AND VERIFY" command, also known as opcode 0x2E. This opcode is a rather obscure one, that's rarely used, and also one that is not implemented in stgt. Since, from what I was told, mkvg is the only command that uses this function, everything else works nice and dandy.
As it looks now, there is no possible way of making this work with the software as it is. I've yet to find out whether ietd suffers from the same lack. For that I _will_ use the edit function (if no one replied in the mean time) ;-)
For completeness, here is the link to the Usenet tread on this peculiar subject: mkvg on iscsi disk won't work (6.1) - comp.unix.aix | Google Groups
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Last edited by bakunin; 05-17-2010 at 10:40 AM..
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LEARN ABOUT FREEBSD
iscsi_initiator
ISCSI_INITIATOR(4) BSD Kernel Interfaces Manual ISCSI_INITIATOR(4) NAME
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The iscsi_initiator driver creates the following: /dev/iscsi used to create new sessions. /dev/iscsi%d for each new session. SEE ALSO
cam(4), camcontrol(8), iscontrol(8) STANDARDS
iSCSI RFC 3720 AUTHORS
This software was written by Daniel Braniss <danny@cs.huji.ac.il> BUGS
The lun discovery method is old-fashioned. BSD
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