Proware DP-503-F4A3, Installation And User Manual

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DP-503-F4A3 RAID SUBSYSTEM
Installation and User Manual 65
To add a Host Filter entry, first select the host to include/exclude from Host WWN list.
Adjust Range Mask and select Filter Type and Access Mode. Choose “Add” operation, then
Confirm/Submit to complete the add operation. The added host filter entry will be shown in the
Fibre Channel Volume Set Host Filters list. Up to 8 host filter entries can be added.
To delete a host filter entry from the list, select the radio button corresponding to the host filter entry.
Choose “Delete” operation, and then Confirm/Submit to complete the deletion.
Range Mark
Sometimes it is convenient to combine some co-related WWNs into one ID range as a single filter
entry. This ID range is obtained by “ANDing” the host WWN and the Range Mask (which are both 64-
bit entities). For example: if hosts 0x210000e0_8b03dc84 and 0x210000e0_8b03dc85 have the
same access control, they can be combined as a single filter entry (using either WWN as host WWN)
with Range Mask setting as 0xFFFFFFFF_FFFFFFFE. Note that under most circumstances, the Range
Mask is left as 0xFFFFFFFF_FFFFFFFF, which means that only a single WWN is specified for that filter
entry.
Filter Type
Each filter entry can be set to include or exclude certain host(s) from data access.
If a node’s WWN falls in an ID range specified as Exclude, the related Volume Set will be “invisible” to
this node and no data access is possible.
If a node’s WWN falls in an ID range specified as Include and does not fall in any ID range
specified as Exclude, this node will be allowed to access the data of the related Volume Set.
The Access Mode can be specified as normal “Read/Write” or restricted “Read Only”.
If a node’s WWN falls in none of the ranges and there is at least one Include-type entry specified, this
node is considered as Excluded; otherwise, it is considered as Included.
Note that when no Filter Entries are specified for a Volume Set, any node can access the Volume Set
since there is no LUN masking.