Sun Microsystems 6900 Series Alternatives to Sun StorEdge Traffic Manager, To Quiesce the I/O

Note that in the Class and State fields, the virtualization engines are presented as two primary/ONLINE devices. The current Sun StorEdge Traffic Manager design does not enable you to manually halt the I/O (that is, you cannot perform a failover to the secondary path) when only primary devices are present.

Alternatives to Sun StorEdge Traffic Manager

As an alternative to using Sun StorEdge Traffic Manager, you can manually halt the I/O using one of two methods: quiesce I/O and unconfigure the c2 path. These methods are explained below.

▼To Quiesce the I/O

1.Determine the path you want to disable.

2.Type:

#cfgadm -c unconfigure device

▼To Unconfigure the c2 Path

1.Type:

# cfgadm -al
Ap_Id	Type	Receptacle	Occupant	Condition
c0	scsi-bus	connected	configured	unknown
c0::dsk/c0t0d0	disk	connected	configured	unknown
c0::dsk/c0t1d0	disk	connected	configured	unknown
c1	scsi-bus	connected	configured	unknown
c1::dsk/c1t6d0	CD-ROM	connected	configured	unknown
c2	fc-fabric	connected	configured	unknown
c2::210100e08b23fa25	unknown	connected	unconfigured unknown
c2::2b000060220041f4	disk	connected	configured	unknown
c3	fc-fabric	connected	configured	unknown
c3::210100e08b230926	unknown	connected	unconfigured unknown
c3::2b000060220041f9	disk	connected	configured	unknown
c4	fc-private	connected	unconfigured unknown
c5	fc	connected	unconfigured unknown

8 Sun StorEdge 3900 and 6900 Series Troubleshooting Guide • March 2002