Apple Xserve RAID User's guide Technical Information download pdf (Page 23)

Working With RAID Arrays 23

3 Click the LUN Settings tab.

4 In the LUN Settings window, click Enable LUN Masking for one or both controllers.

5 Enter the WWPN for the desired port on the ﬁbre channel card in your host system.

If you don’t know which of two names will work, enter one and complete the steps below. If

the result was not what you wanted, repeat this procedure using the second WWPN.

6 Click one or more of the LUN buttons for the arrays you want to map to the host system

associated with that WWPN. Checked items are mapped to the host computer connected to

the ﬁbre channel port with that WWPN and will be visible on that computer. Items that are

not checked are masked from that host computer.

m A LUN is the same as an array (or a RAID set). RAID Set 1 in the Arrays & Drives tab is the

same as LUN 0 in the LUN Settings window.

m If a LUN number is checked, that LUN is mapped to the host computer associated with

the corresponding WWPN (and is masked, or hidden, from other host computers).

m If a LUN number is not checked, that LUN is masked from the host computer associated

with the corresponding WWPN.

m If a LUN button is dimmed, no corresponding array has been set up.

Note: You can create up to three arrays on each controller; they are numbered LUN 0 to

LUN 2.

WWPN for the

ﬁbre channel port

connected to host

computer B

WWPN for the ﬁbre

channel port connected

to host computer A

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Apple Xserve RAID User's guide Technical Information Page 23