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Operating Systems Solaris How to tell what disks are used for a zpool? Post 302789503 by jlliagre on Wednesday 3rd of April 2013 07:07:30 PM
Old 04-03-2013
The fact a disk is not used by VxVM (resp ZFS) doesn't necessarily mean it is free.

It might be used by something else. Moreover, the reality might be more subtle than the disk level approach you are expecting.

There might be primary and extended partitions (x86), there will likely be slices (x86 & SPARC) and any of them might be used by some volume manager (SVM, VxVM, ZFS, ASM) or directly contain a file system (UFS, FAT, SamFS, ...) or something else, especially if the device is shared/used by a different operating system.

You might run something like this to explore all of the potential partitions/slices:
Code:
for i in /dev/dsk/*; do
printf "%s : %s\n" $i "$(fstyp $i 2>&1)"
done | grep -v "cannot open"

 

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dgcfgbackup(1M) 														   dgcfgbackup(1M)

NAME
dgcfgbackup - create or update VxVM volume group configuration backup file SYNOPSIS
/usr/sbin/dgcfgbackup [-f dg_conf_path ] dg_name DESCRIPTION
The dgcfgbackup command saves the VxVM configuration for a disk group in a default or alternate configuration backup file (see the descrip- tion of the-f option). By default, dgcfgbackup is run automatically each time that a VxVM command changes the VxVM configuration. In this case, it always uses the default configuration backup file. An existing default configuration backup file is renamed with an extension of .old. Options and Arguments dg_name Specifies the name of a disk group. -f dg_conf_path Saves the configuration using an alternate file name specified by dg_conf_path. If this option is omitted, the default file name is /etc/vxvmconf/dg_name.conf. EXIT CODES
dgcfgbackup exits with a zero status on successful completion. An non-zero exit status indicates that errors occurred when information from the disk group was being accessed. EXAMPLES
Back up VxVM configuration information for disk group testdg in the default backup file /etc/vxvmconf/testdg.conf: dgcfgbackup testdg Back up VxVM configuration information for disk group datadg in the alternate configuration backup file /tmp/datadg.backup: dgcfgbackup -f /tmp/datadg.backup datadg NOTES
It is recommended that any alternate configuration backup file be created in the root file system (as is the case with the default path name). This facilitates disk group recovery during maintenance mode, such as after a system crash. AUTHOR
dgcfgbackup was developed by the Hewlett-Packard Company. SEE ALSO
dgcfgrestore(1M) VxVM 5.0.31.1 24 Mar 2008 dgcfgbackup(1M)
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