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QNAP

QuTS hero 5.0.x

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Regular Clone and Instant Clone

QuTS hero provides two snapshot clone methods, a regular clone method and Instant Clone. The two clone methods have different advantages and limitations.

Feature

Regular Clone

Instant Clone

Requirements

-

iSCSI service must be enabled for cloning LUNs.

For details, see iSCSI & Fibre Channel Global Settings.

Cloning duration

Longer

Shorter

Required space

Normal

Less space required for cloning a thin shared folder or a thin LUN

Cloned shared folders/LUNs can be a source for Snapshot Replica jobs

Yes

No

Cloned shared folders/LUNs can be a source for SnapSync jobs

Yes

No

After cloning, you can revert to an earlier snapshot

Yes

No

All Instant Clone shared folders/LUNs of the snapshot must be deleted first.

After cloning, the snapshot can be deleted

Yes

No

All Instant Clone shared folders/LUNs of the snapshot must be deleted first.

After cloning, the original shared folder/LUN of the snapshot can be deleted

Yes

No

All of the original shared folder/LUN's snapshots which have Instant Clone shared folders/LUNs must be deleted first.