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Solaris Volume Manager How To Grow SVM (SDS) Mirrored root (Doc ID 1012206.1)

Last updated on JUNE 14, 2023

Applies to:

Solstice DiskSuite Software - Version 2.0.1 to 4.2.1 [Release 2.0 to 4.0]
Sun Solaris Volume Manager (SVM) - Version 11.9.0 to 11.11 [Release 11.0]
Oracle Solaris on x86-64 (64-bit)
Oracle Solaris on x86 (32-bit)
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on SPARC (32-bit)


This is a step by step procedure to grow a root filesystem which is mirrored using Solstice Disksuite[TM] or Solaris[TM] Volume Manager.


The man page for growfs specifically references conditions where filesystems cannot be grown, one of which is here:
"The following conditions prevent you from expanding file systems: ....When the file system is root (/), /usr, or swap."
In this article, we will be growing the root filesystem, but not while it is in use. This, and the need for contiguous cylinders are essential to the success of the procedure.

Please note that depending upon the configuration of the boot disk, the ability to grow the root filesystem may not be possible without additional preliminary work which is not covered in this document.

It is strongly recommended that a backup of the root filesystem be performed prior to implementing this procedure.
Also, experience with the Disksuite or Solaris Volume Manager products and their command line utilities is recommended.
This document may not provide ALL the commands necessary to perform the task, so some additional commands or steps may be necessary.

All references in this document to "SVM" should be taken to refer equally to Solstice DiskSuite[TM] and Solaris Volume Manager.


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