Fujitsu ETERNUS DX Disk Manuale d'uso - Pagina 31

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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 recognized properly

after path restoration.

In this case, volume recognition is required after restoring LUN recognition using the Change LUN State Utili-

ty provided by each Fibre Channel card vendor.

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 Chan-

nel card that corresponds to the unrecognized volume.

(1)

Check the controller number of the Fibre Channel card in which there is a path connected to the

ETERNUS DX Disk storage system.

# vxdmpadm listctlr all

Example (for ETERNUS DX410)

# vxdmpadm listctlr all

CTLR-NAME

=========================================================

In this example, the controller numbers of the Fibre Channel cards connected to the ETERNUS

DX410 are "c6" and "c7".

(2)

Check the status of volume paths connected to each Fibre Channel card using the controller num-

bers that were checked in

In this step, check the controller number corresponding to the volume for which "DISABLED" is dis-

played.

# vxdmpadm getsubpaths ctlr=c

The underlined portion indicates the controller number.

ETERNUS DX Disk storage systems User's Guide -Server Connection-(Fibre Channel) for Linux

ENCLR-TYPE

STATE

Disk

ENABLED

FJ_DX400

ENABLED

FJ_DX400

ENABLED

Step

(1).

ENCLR-NAME

Disk

fj_dx400

P3AM-3842-12ENZ0