Dedup; Data Deduplication Deferred Update; Replication; Replication Deferred Update - Oracle Sun ZFS Service Manual

Dedup

Data Deduplication Deferred Update

This update provides the ability to use data deduplication.
In order to use this new mode, the storage pool must be upgraded. If you choose not to upgrade
the pool and attempt to use this new property, you will get an error indicating that the storage
pool needs to be upgraded first. There is no other implication of applying this update, and it can
be ignored if there is no need to use this new setting. Applying this update is equivalent to
upgrading the on-disk ZFS pool to version 21.

Replication

Replication Deferred Update

The 2010.Q1 release stores replication configuration differently than 2009.Q3 and earlier
releases. This update migrates existing target, action, and replica configuration created under
an earlier release to the new form used by 2010.Q1 and later.
After upgrading to 2010.Q1 but before this update is applied, incoming replication updates for
existing replicas will fail. Replicas received under earlier releases will not be manageable via the
BUI or CLI, though they will occupy space in the storage pool. Additionally, the system will not
send replication updates for actions configured on earlier releases.
After applying this update, incoming replication updates for replicas originally received on
earlier releases will continue normally and without a full resync. The system will also send
incremental replication updates for actions configured under earlier releases.

Received Properties

Received Properties Deferred Update

The 2010.Q1 feature that enables administrators to customize properties on replicated shares
relies on a ZFS pool upgrade. This upgrade provides support of persistent local changes to
received properties. Before this upgrade has been applied, the system will not allow
administrators to change properties on replicated shares.
Applying this update is equivalent to upgrading the on-disk ZFS pool to version 22.
Chapter 3 • System Maintenance
Received Properties
127