Attaching A Storage Unit To A Sun Host Using Sun Cluster - IBM TotalStorage DS6000 Attachment Manual

Attaching a storage unit to a Sun host using Sun Cluster

This section provides instructions for attaching a storage unit to a Sun host using
Sun Cluster.
See the Sun Web site at http://www.sun.com for up-to-date documentation.
Attention:
storage unit, the following restriction must be observed. When setting up a
two-node SunCluster 3.x environment with MPxIO for multipathing, it is mandatory
that 1:1 zoning be used; that is, each HBA must be in a zone that contains only 1
HBA and only 1 storage unit target adapter. To ensure that this relationship is
maintained, create host nickname definitions using the GUI to enforce "port
masking" that allows the host WWPN to login only to the desired storage unit target
adapter.
This zoning and port masking must be implemented prior to assigning any storage
unit LUNs to the SunCluster host and prior to attempting any SunCluster
configuration. For example:
An acceptable zoning configuration would be:
Note that this configuration uses only two target adapters, but each is paired with
the HBAs in separate zones, which satisfies the requirement that each initiator be in
a zone with itself and only 1 target.
Another acceptable zoning configuration would be:
This restriction is unique to two-node SunCluster 3.x. with MPxIO. The use of
MPxIO is limited to Sun-branded host adapters, thus the restriction does not apply
to other adapter brands (AMCC, Emulex, QLogic).
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DS6000 Host Systems Attachment Guide
where LUNs per adapter is the largest number of LUNs assigned to a
single adapter.
To set the ssd_max_throttle parameter for the storage unit LUNs in this
example, add the following line to the /etc/system file:
set ssd:ssd_max_throttle=5
Due to a problem found in two-node SunCluster implementations on a
Host "Sun1" with 2 HBAs: "qlc0" and "qlc1"
Host "Sun2" with 2 HBAs: "qlc0" and "qlc1"
DS6000 with 4 Target adapters:
B1-C1 (cpsspc400)
B2-C1 (cpsspc600)
B3-C1 (cpsspc500)
B4-C1 (cpsspc700)
Sun1:qlc0 -- B1-C1
Sun1:qlc1 -- B4-C1
Sun2:qlc0 -- B2-C1
Sun2:qlc1 -- B3-C1
zone 1: Sun1:qlc0 -- B1-C1
zone 2: Sun1:qlc1 -- B4-C1
zone 3: Sun2:qlc0 -- B2-C1
zone 4: Sun2:qlc1 -- B3-C1