AIX LPAR FC connection to SAN Post: 303031466

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Operating Systems AIX AIX LPAR FC connection to SAN Post 303031466 by Phat on Friday 1st of March 2019 12:46:36 AM

03-01-2019

Registered User

Hi Bakunin,

Thank for your reply.

Let me clarify again. On the power machine which has physical FCs attached to SAN via SAN switch, as can be seen on my environment, there are 2 LPARs as below:

1. First LPAR with virtual FC (assigned by VIOS) and can use the LUN allocated to it, this point can be understood as it uses NPIV.

2. Second LPAR does not use VIOS and virtual FC, because with the lsdev -Cc adapter | grep fcs as showed, the FC adapter are "physical ones", not virtual as it does not start with C in the WWPN.

Code:

[root@xxxxx] / > lsdev -Cc adapter | grep fcs
fcs0 Available 00-00 8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)
fcs1 Available 00-01 8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)
fcs2 Available 01-00 8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)
fcs3 Available 01-01 8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)
fcs4 Available 05-00 8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)
fcs5 Available 05-01 8Gb PCI Express Dual Port FC Adapter (df1000f114108a03)

My question is, how can it connects and uses the LUN which is allocated to it? As my thought, it is utilizing also the physical FC port of power machine.

if first LPAR uses NPIV, so what technique does second LPAR use? It can use Power Machine physical FC directly and without need the VIOS and virtual FC?

Hope my explanation is clear.
Phat

Phat

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gnutls_x509_crt_get_subject_alt_name

gnutls_x509_crt_get_subject_alt_name(3) 			      gnutls				   gnutls_x509_crt_get_subject_alt_name(3)

NAME

       gnutls_x509_crt_get_subject_alt_name - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_subject_alt_name(gnutls_x509_crt_t cert, unsigned int seq, void * san, size_t * san_size, unsigned int * critical);

ARGUMENTS

       gnutls_x509_crt_t cert
		   should contain a gnutls_x509_crt_t structure

       unsigned int seq
		   specifies the sequence number of the alt name (0 for the first one, 1 for the second etc.)

       void * san  is the place where the alternative name will be copied to

       size_t * san_size
		   holds the size of san.

       unsigned int * critical
		   will be non-zero if the extension is marked as critical (may be null)

DESCRIPTION

       This function retrieves the Alternative Name (2.5.29.17), contained in the given certificate in the X509v3 Certificate Extensions.

       When the SAN type is otherName, it will extract the data in the otherName's value field, and GNUTLS_SAN_OTHERNAME is returned.  You may use
       gnutls_x509_crt_get_subject_alt_othername_oid() to get the corresponding OID and the "virtual" SAN types (e.g., GNUTLS_SAN_OTHERNAME_XMPP).

       If an otherName OID is known, the data will be decoded.	Otherwise the returned data will be DER encoded, and you will have  to	decode	it
       yourself.  Currently, only the RFC 3920 id-on-xmppAddr SAN is recognized.

RETURNS

       the  alternative  subject  name	type on success, one of the enumerated gnutls_x509_subject_alt_name_t.	It will return GNUTLS_E_SHORT_MEM-
       ORY_BUFFER if  san_size is not large enough to hold the value.  In that case  san_size will be updated with the required size.  If the cer-
       tificate does not have an Alternative name with the specified sequence number then GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE is returned.

REPORTING BUGS

       Report bugs to <bug-gnutls@gnu.org>.
       General guidelines for reporting bugs: http://www.gnu.org/gethelp/
       GnuTLS home page: http://www.gnu.org/software/gnutls/

COPYRIGHT

       Copyright (C) 2012 Free Software Foundation, Inc..
       Copying	and  distribution  of  this file, with or without modification, are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO

       The full documentation for gnutls is maintained as a Texinfo manual.  If the info and gnutls programs are properly installed at your  site,
       the command

	      info gnutls

       should give you access to the complete manual.  As an alternative you may obtain the manual from:

	      http://www.gnu.org/software/gnutls/manual/

gnutls								      3.1.15				   gnutls_x509_crt_get_subject_alt_name(3)

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