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format(1m) reports: "Warning: error writing VTOC." (Doc ID 2062551.1)

Last updated on OCTOBER 05, 2022

Applies to:

Solaris Operating System - Version 10 to 11.2 [Release 10.0 to 11.0]
Information in this document applies to any platform.


When attempting to label a disk using format(1m) the following message may appear:



The disk is currently or previously in use by a software application using SCSI reservations.   This may include various cluster system software, e.g. Sun Cluster, or other similar products. 

SCSI 3 Persistent Group Reservations remain even after device reset, power cycle etc;.  they must be explicitly removed if the storage logical unit is to be used by another host/HBA.   Failure to remove these reservations may cause this symptom.


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