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ETERNUS DX Disk storage systems Server Connection Guide (Fibre Channel) for Linux
35
Copyright 2010 FUJITSU LIMITED
P3AM-3842-05ENZ0
Appendix A Restoration Procedure for when a Path Degrades
in a VERITAS Volume Manager Environment
If a path degrades when VERITAS Volume Manager is used, some volumes may not be recog-
nized properly after path restoration.
In this case, volume recognition is required after restoring LUN recognition using the Change
LUN State Utility provided by each Fibre Channel card vendor.
Procedure
1 Check the Fibre Channel card's controller number and status.
Use the "vxdmpadm" command to check the controller number and controller status of the
Fibre Channel card that corresponds to the unrecognized volume.
1-1 Check the controller number of the Fibre Channel card in which there is a path
connected to the ETERNUS DX Disk storage system.
Example (for ETERNUS DX410)
In this example, the controller numbers of the Fibre Channel cards connected to the
ETERNUS DX410 are "c6" and "c7".
# vxdmpadm listctlr all
# vxdmpadm listctlr all
CTLR-NAME ENCLR-TYPE STATE ENCLR-NAME
=========================================================
c0 Disk ENABLED Disk
c6 FJ_DX400 ENABLED fj_dx400
c7 FJ_DX400 ENABLED fj_dx400