HP Matrix Operating Environment Software - Manual (Page 78)

one or more patterns consisting of a partial WWN and one or more asterisks used as wild cards
within the partial WWN.
For example, a network consisting of WWNs beginning with A or B would be described by two
patterns, ‘A*' and ‘B*'. A network intended to claim all WWNs can be described by the pattern
‘*'. XML files generated by SPM may be edited outside SPM, but if such a file is edited to describe
a zoned network, the file will no longer be editable within SPM.
Complex unmanaged networks:
Files describing zoned networks cannot be edited in SPM. These types of files are under the control
of the user, and it is recommended that only those with a thorough understanding of storage
networks and XML edit these files.
WWN patterns
Unmanaged networks are defined using one or more patterns representing a number of world
wide names. World wide names are considered to be part of an unmanaged network if they match
a pattern within that network. Each pattern consists of hexadecimal characters, colons, and asterisks.
The hexadecimal characters and colons represent portions of a WWN canonicalized to the format
xx:xx:xx:xx:xx:xx:xx:xx. The asterisks represent wild cards within a pattern. They match any number
of hexadecimal characters in an actual WWN. When a user enters a WWN pattern, SPM attempts
to canonicalize it as necessary, and checks it for some error conditions. Patterns in which SPM
can detect no errors are stored and used to compute which endpoints belong to the unmanaged
network. In order to illustrate how SPM treats strings entered as patterns, some examples of strings
entered into SPM by users for use as patterns, together with comments on how SPM treats them,
are shown in
Table 4 (page 78) .
SPM ensures that each WWN is a part of only one network. If a WWN matches patterns in two
networks, the WWN will be a part of the network containing the pattern with the largest number
of matching hexadecimal characters. If a WWN matches patterns in two networks containing the
same number of matching hexadecimal characters, the WWN will not be a part of any network
since SPM cannot determine which network should contain the WWN. If a WWN matches a
pattern in an unmanaged network and is also known by SPM to be part of a managed network,
SPM will regard the WWN as being in the managed network.
Unmanaged networks containing the pattern '*' will contain all WWNs. Users with a single Fibre
Channel Fabric should use a single unmanaged network with that pattern to eliminate the need to
edit the unmanaged network as new WWNs are added. Users with WWNs that do not conform
to a more restrictive pattern may use the '*' pattern if they want all WWNs to be included in a
particular network or zone. Complete WWNs without any asterisks may also be specified as
patterns. Such patterns will match exactly one WWN, and may also be useful if no more flexible
pattern or set of patterns matches the WWNs in use.
Table 4 WWN pattern examples
Comment SPM result User input
Any WWN may be a part of a network containing
this pattern. * *
Any WWN beginning with the character 'A' may be
a part of a network containing this pattern. SPM
converts all lower-case letters to upper-case. A* a*
SPM strips out any characters except digits,
alphabetical characters from a-f, and colons. B* #ZB*
Any WWN begining with the sequence AB:CD may
be a part of a network containing this pattern. SPM AB:CD* abcd*
will add colons as necessary when they are not
specified.
Any WWN containing the sequence 1:23:4 may be
a part of a network containing this pattern. SPM
respects colons specified by the user. *1:23:4* *1:23:4*
78 Working with unmanaged networks