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Operating Systems Solaris Remove the zfs snapshot keeping the original volume and clone Post 302341218 by fugitive on Wednesday 5th of August 2009 09:20:46 AM
Old 08-05-2009
Remove the zfs snapshot keeping the original volume and clone

I created a snapshot and subsequent clone of a zfs volume. But now i 'm not able to remove the snapshot it gives me following error

Code:
zfs destroy newpool/ldom2/zdisk4@bootimg
cannot destroy 'newpool/ldom2/zdisk4@bootimg': snapshot has dependent clones
use '-R' to destroy the following datasets:
newpool/ldom2/zdisk0

and if i promote the clone then the original volume becomes the dependent clone , is there a way to destroy just the snapshot leaving the clone and original volume intact ?
 

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AMZFS-SENDRECV(8)					  System Administration Commands					 AMZFS-SENDRECV(8)

NAME
amzfs-sendrecv - Amanda script to create zfs sendrecv DESCRIPTION
amzfs-sendrecv is an Amanda application implementing the Application API. It should not be run by users directly. It create a zfs snapshot of the filesystem and backup the snapshot with 'zfs send'. Snapshot are kept after the backup is done, this increase the disk space use on the client but it is neccesary to be able do to incremental backup. If you want only full backup, you can disable this feature by setting the KEEP-SNAPSHOT property to 'NO'. Only the restoration of the complete backup is allowed, it is impossible to restore a single file. The application is run as the amanda user, it must have many zfs priviledge: zfs allow -ldu AMANDA_USER mount,create,rename,snapshot,destroy,send,receive FILESYSTEM Some system doesn't have "zfs allow", but you can give the Amanda backup user the rights to manipulate ZFS filesystems by using the following command: usermod -P "ZFS File System Management,ZFS Storage Management" AMANDA_USER This will require that your run zfs under pfexec, set the PFEXEC property to YES. The format of the diskdevice in the disklist (DLE) must be one of: Desciption Example ---------- ------- Mountpoint /data ZFS pool name datapool ZFS filesystem datapool/database ZFS logical volume datapool/dbvol The filesystem doesn't need to be mounted. PROPERTIES
This section lists the properties that control amzfs-sendrecv's functionality. See amanda-applications(7) for information on the Application API, application configuration. DF-PATH Path to the 'df' binary, search in $PATH by default. KEEP-SNAPSHOT If "YES" (the default), snapshot are kept after the backup, if set to "NO" then snapshot are no kept and incremental backup will fail. ZFS-PATH Path to the 'zfs' binary, search in $PATH by default. PFEXEC-PATH Path to the 'pfexec' binary, search in $PATH by default. PFEXEC If "NO" (the default), pfexec is not used, if set to "YES" then pfexec is used. EXAMPLE
In this example, a dumptype is defined to use amzfs-sendrecv application to backup a zfs filesystem. define application-tool amzfs_sendrecv { comment "amzfs-sendrecv" plugin "amzfs-sendrecv" #property "DF-PATH" "/usr/sbin/df" #property "KEEP-SNAPSHOT" "YES" #property "ZFS-PATH" "/usr/sbin/zfs" #property "PFEXEC-PATH" "/usr/sbin/pfexec" #property "PFEXEC" "NO" } define dumptype user-zfs-sendrecv { program "APPLICATAION" application "amzfs_sendrecv" } SEE ALSO
amanda(8), amanda.conf(5), amanda-client.conf(5), amanda-applications(7) The Amanda Wiki: : http://wiki.zmanda.com/ AUTHOR
Jean-Louis Martineau <martineau@zmanda.com> Zmanda, Inc. (http://www.zmanda.com) Amanda 3.3.1 02/21/2012 AMZFS-SENDRECV(8)

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