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Operating Systems Solaris Solaris BigAdmin RSS zfs.roll.snapshot
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Old 09-09-2008
zfs.roll.snapshot
This script will create (or recreate, if it already exists) a ZFS snapshot, and then use the ZFS "clone" functionality to automatically mount the snapshot in an alternate location. This process prevents you from having to point the backup software at a .zfs/snapshot directory, which is clumsy.By default the script will mount the clone under /zbackup, although this behavior can be changed with options or by editing the script. Because a ZFS clone is created using the same type of copy-on-write pointers as the snapshot itself, it uses additional space only when data changes in the live volume.Read BigAdmin article that describes usage of this script: http://www.sun.com/bigadmin/content/...apshot_zfs.jsp

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LEARN ABOUT FREEBSD

zfsloader

ZFSLOADER(8)						    BSD System Manager's Manual 					      ZFSLOADER(8)

NAME

     zfsloader -- kernel bootstrapping final stage

DESCRIPTION

     zfsloader is an extended variant of loader(8) with added support for booting from ZFS.  This document describes only differences from
     loader(8).

ZFS FEATURES

     zfsloader supports the following format for specifying ZFS filesystems which can be used wherever loader(8) refers to a device specification:

     zfs:pool/filesystem:

     where pool/filesystem is a ZFS filesystem name as described in zfs(8).

     If /etc/fstab does not have an entry for the root filesystem and vfs.root.mountfrom is not set, but currdev refers to a ZFS filesystem, then
     zfsloader will instruct kernel to use that filesystem as the root filesystem.

ZFS COMMAND EXTENSIONS

     lsdev [-v]
	     Lists ZFS pools in addition to disks and partitions.  Adding -v shows more ZFS pool details in a format that resembles zpool status
	     output.

     lszfs filesystem
	     A ZFS extended command that can be used to explore the ZFS filesystem hierarchy in a pool.  Lists the immediate children of the
	     filesystem.  The filesystem hierarchy is rooted at a filesystem with the same name as the pool.

FILES

     /boot/zfsloader  zfsloader itself.

EXAMPLES

     Set the default device used for loading a kernel from a ZFS filesystem:

	   set currdev=zfs:tank/ROOT/knowngood:

SEE ALSO

     gptzfsboot(8), loader(8), zfs(8), zfsboot(8), zfsloader(8), zpool(8)

HISTORY

     The zfsloader first appeared in FreeBSD 7.3.

AUTHORS

     This manual page was written by Andriy Gapon <avg@FreeBSD.org>.

BSD
								September 15, 2014							       BSD