CLI Guide

Parameter Description
• startTime
• scheduleInterval
• endDate
• timesPerDay
• timeZone
See the Notes section for information explaining
how to use these options.
rollBackPriority
Determines whether system resources should be
allocated to the rollback operation at the expense
of system performance. A value of high indicates
that the rollback operation is prioritized over all
other host I/O. A value of low indicates that the
rollback operation should be performed with
minimal impact to host I/O.
Notes
A consistency group is a logical entity that enables you to manage in batch form all of the snapshot
images that you add to the collection. The consistency group is a collection of snapshot groups that have
mutual consistency requirements or dependencies for their snapshot images. Any snapshot images that
you create and use for this collection must be managed in accordance with the consistency
dependencies.
You can use any combination of alphanumeric characters, underscore (_), hyphen (-), and pound (#) for
the names. Names can have a maximum of 30 characters.
The snapshot images in a consistency group can be deduced based on the existence of a snapshot image
within a consistency group. All snapshot images that reside within a consistency group share a common
time stamp and sequence number.
An operation on a snapshot image consistency group is treated as a single request, and causes all
pending I/O operations to the associated base virtual disk of each member to be drained and suspended
before creating the snapshot images. If creation of the snapshot images cannot be completed
successfully for all of the consistency group members, the operation fails and has no affect (that is, new
snapshot images are not created).
Based on this behavior all members for a consistency group usually have the same number of PiTs.
However, when a new member is added to a consistency group, that new member lacks the snapshot
images that were previously created on the established members of the consistency group. This is not
considered an error condition. Ensuing requests for deletion or rollback of snapshot images that only
exist on a subset of the consistency group members will only affect the members for which the specified
snapshot images actually exists.
For more information on scheduling snapshot images in a consistency group, see Scheduling Snapshots.
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