ZFS's combination of the volume manager and the file system solves this and allows the creation of many file systems all sharing a pool of available storage. One of the biggest advantages to ZFS's awareness of the physical layout of the disks is that existing file systems can be grown automatically when additional disks are added to the pool. ZFS is a combined file system and logical volume manager designed and implemented by a team at Sun Microsystems led by Jeff Bonwick and Matthew Ahrens. Its development started in 2001 and it was officially announced in 2004. In 2005 it was integrated into the main trunk of Solaris and released as part of OpenSolaris. ZFS is scalable, and includes extensive protection against data corruption, support for high storage capacities, efficient data compression, integration of the concepts of filesystem and volume management, snapshots and copy-on-write clones, continuous integrity checking and automatic repair, RAID-Z, native NFSv4 ACLs, and can be very precisely configured.
ZFS is a type of file system presenting a pooled storage model that is provided by Oracle for Solaris. File systems can directly draw from a common storage pool (zpool). Veritas Volume Manager (VxVM) can be used on the same system as ZFS disks.
VxVM protects devices in use by ZFS from any VxVM operations that may overwrite the disk. These operations include initializing the disk for use by VxVM or encapsulating the disk. If you attempt to perform one of these VxVM operations on a device that is in use by ZFS, VxVM displays an error message.
Before you can manage a ZFS disk with VxVM, you must remove it from ZFS control. Similarly, to begin managing a VxVM disk with ZFS, you must remove the disk from VxVM control.
Before you can manage a ZFS disk with VxVM, you must remove it from ZFS control. Similarly, to begin managing a VxVM disk with ZFS, you must remove the disk from VxVM control.
To determine if a disk is in use by ZFS
Zfs Volume Manager App
- Use the vxdisk list command:
To reuse a VxVM disk as a ZFS disk
Zfs Volume Manager Reviews
- If the disk is in a disk group, remove the disk from the disk group or destroy the disk group.
To remove the disk from the disk group:
To destroy the disk group:
- Remove the disk from VxVM control
- You can now initialize the disk as a ZFS device using ZFS tools.
See the Oracle documentation for details.
You must perform step 1 and step 2 in order for VxVM to recognize a disk as ZFS device.
Zfs Volume Manager
To reuse a ZFS disk as a VxVM disk
Zfs Volume Manager Download
- Remove the disk from the zpool, or destroy the zpool.
See the Oracle documentation for details.
- Clear the signature block using the dd command:
Where c#t#d#s# is the disk slice on which the ZFS device is configured. If the whole disk is used as the ZFS device, clear the signature block on slice 0.
- You can now initialize the disk as a VxVM device using the vxdiskadm command or the vxdisksetup command.
