Hewlett Packard Enterprise HPE XP7, User Manual, Page: 16 / 311

• The volume in the top layer of the snapshot tree (P-VOL of the L1 pair) is the root volume.
• Volumes between the root and leaf volumes are node volumes.
• Volumes in the bottom layer of the snapshot tree are leaf volumes.
To create a Fast Snap pair that can be used in a cascaded snapshot tree, open the Create FS Pairs
window and select Enable for Cascade in RWC or use the
raidcom add snapshot -snap_mode
cascade
command in RAID Manager. For details, see Creating Fast Snap pairs using Remote Web
Console on page 114 or Adding Fast Snap pairs to snapshot or consistency groups using RAID
Manager on page 119.
When the S-VOL of a Fast Snap pair you created for a P-VOL for the first time is a THP V-VOL, you can
create cascaded pairs. If a Fast Snap pair whose secondary volume is a Fast Snap V-VOL (which has the
Snapshot provisioning type) is created, remove the pair first, and then create another Fast Snap pair
whose secondary volume is a THP V-VOL.
16 Overview of Fast Snap