About initializing the duplicated data in a pool

Provisioning Guide for Open Systems for VSP One Block 85

Version
10.5.x
File Size
3643 KB
Audience
anonymous
Part Number
MK-26VSP1B033-03
ft:lastEdition
2026-06-23

If a pool contains V-VOLs with deduplication enabled and a capacity saving status of Failed, you can restore the V-VOLs by initializing the duplicated data in the pool. The Initialize Duplicated Data function initializes the status of the capacity saving function for the pool by forcibly discarding the data in V-VOLs that have duplicated data in the pool. You can initialize the duplicated data in a pool by using CCI.

This table lists the specifications for the Initialize Duplicated Data function. To initialize the duplicated data, use the raidcom initialize pool command.

Item Specification
Specified range Per pool
Target V-VOLs with deduplication data enabled and the deduplication system data volumes (fingerprint and data store) in the specified pool
Volume status after initializing duplicated data
  • The deduplication system data volume (fingerprint): normal status.
  • The V-VOLs with deduplication and compression enabled and deduplication system data volume (data store): blocked. To restore them to normal status, format the LDEV.
Execution time Initializing duplicated data takes one minute per 40 TB total capacity of the target volumes. It also takes 0.007 minutes per target volume.

Execution time = 5 + ↑(Total capacity [TB]/40[TB])↑ + Number of target volumes × 0.007 minutes

↑()↑: Round up the value enclosed in ↑()↑ to the nearest whole number.

For example, when the total capacity of the target volumes is 100 TB, and the number of the target volumes is 1000, the execution time is: 5 + ↑(100/40)↑ + 1000 × 0.007 = 5 + ↑2.5↑ + 7 = 5 + 3 + 7 = 15 minutes