Compaq Infortrend Manuale Utente
Fibre Operation
8-19
LUN Mask (ID Range) Configuration:
Ranges can be established by combining a basis ID with a mask
similar to the way routing table entries are set up on a LAN/WAN.
If the port name ID "AND'ed" with the mask equals the basis ID
AND'ed with the mask, then the port name ID is considered to fall
within the range. If a default value "0xFFFFFFFFFFFFFF" is selected,
then the port name ID must match the basis ID for the port name to
be considered to fall within the range. "0x" means that all values are
presented in hexadecimal. If, for instance, a value
"0xFFFFFFFFFFFFFC" is selected, and the basic ID is
"0x11111111111111," port name IDs ranging from "0x….1110" to
"0x….1113" will fall in the ID range.
similar to the way routing table entries are set up on a LAN/WAN.
If the port name ID "AND'ed" with the mask equals the basis ID
AND'ed with the mask, then the port name ID is considered to fall
within the range. If a default value "0xFFFFFFFFFFFFFF" is selected,
then the port name ID must match the basis ID for the port name to
be considered to fall within the range. "0x" means that all values are
presented in hexadecimal. If, for instance, a value
"0xFFFFFFFFFFFFFC" is selected, and the basic ID is
"0x11111111111111," port name IDs ranging from "0x….1110" to
"0x….1113" will fall in the ID range.
As the general rule, a host HBA's port name can be used as the basic
ID. If a host adapter's port name is used as the basic ID and the
default mask value, "0xFFFFFFFFFFFFFF," is applied, the host will
fall exactly within the ID range for the port name ID AND'ed with
mask equals the basic ID AND'ed with mask.
ID. If a host adapter's port name is used as the basic ID and the
default mask value, "0xFFFFFFFFFFFFFF," is applied, the host will
fall exactly within the ID range for the port name ID AND'ed with
mask equals the basic ID AND'ed with mask.
Filter Type: Include or Exclude
Filter entry can serve both ends: to include or exclude certain
adapters from data access.
Include: If a node's (a workstation or a server) WWN falls in an ID
range specified as "Include," the node will be allowed to access the
storage capacity mapped to the associated LUN. The access mode
can be "read only" or "read/write."
adapters from data access.
Include: If a node's (a workstation or a server) WWN falls in an ID
range specified as "Include," the node will be allowed to access the
storage capacity mapped to the associated LUN. The access mode
can be "read only" or "read/write."
Exclude: If a node's WWN falls in an ID range specified as
"Exclude," the node will not be allowed to access the storage
capacity mapped with this entry.
"Exclude," the node will not be allowed to access the storage
capacity mapped with this entry.
Multiple ranges, or filter entries, can be established for a single
channel, target-ID, and LUN combination. Each range can have its
own Exclude/Include attributes. The rules for determining whether
a particular ID is considered as "included" or "excluded" are listed
below:
channel, target-ID, and LUN combination. Each range can have its
own Exclude/Include attributes. The rules for determining whether
a particular ID is considered as "included" or "excluded" are listed
below:
1.
If an ID falls within one or more Include ranges and does not fall
in any Exclude range, then it is included.
in any Exclude range, then it is included.
2.
If an ID falls within ANY Exclude range no matter if it also falls
in another Include range, then it is excluded.
in another Include range, then it is excluded.
3.
If the ID falls in none of the ranges and there is at least one
Include range specified, then the ID should be considered as
excluded.
Include range specified, then the ID should be considered as
excluded.
4.
If the ID falls in none of the ranges and only Exclude ranges are
specified, then the ID is considered as included.
specified, then the ID is considered as included.