Deleting busy Snapshot copies

What a Snapshot copy in a busy state means

A Snapshot copy is in a busy state if there are any LUNs backed by data in that Snapshot copy. The Snapshot copy contains data that is used by the LUN. These LUNs can exist either in the active file system or in some other Snapshot copy.

Command to use to find Snapshot copies in a busy state

The lun snap usage command lists all the LUNs backed by data in the specified Snapshot copy. It also lists the corresponding Snapshot copies in which these LUNs exist. The lun snap usage command displays the following information:

writable Snapshot copy LUNs (backing store LUNs) that are holding a lock on the Snapshot copy given as input to this command
Snapshots in which these snapshot-backed LUNs exist

Deleting Snapshot copies in a busy state

To delete a Snapshot copy in a busy state, complete the following steps.


snap list vol-name
lun snap usage vol_name snap_name
lun destroy [-f] lun_path [lun_path ...]
snap delete vol-name snapshot-name
snap delete vol-name snapshot-name

Step	Action
1	Identify all Snapshot copies that are in a busy state, locked by LUNs, by entering the following command: snap list vol-name Example snap list vol2 Result The following message is displayed: Volume vol2 working... %/used %/total date name ---------- ---------- ------------ -------- 0% ( 0%) 0% ( 0%) Jan 14 04:35 snap3 0% ( 0%) 0% ( 0%) Jan 14 03:35 snap2 42% (42%) 22% (22%) Dec 12 18:38 snap1 42% ( 0%) 22% ( 0%) Dec 12 03:13 snap0 (busy,LUNs)
2	Identify the LUNs and the Snapshot copies that contain them by entering the following command: lun snap usage vol_name snap_name Example lun snap usage vol2 snap0 Result The following message is displayed: active: LUN: /vol/vol2/lunC Backed By: /vol/vol2/.snapshot/snap0/lunA snap2: LUN: /vol/vol2/.snapshot/snap2/lunB Backed By: /vol/vol2/.snapshot/snap0/lunA snap1: LUN: /vol/vol1/.snapshot/snap1/lunB Backed By: /vol/vol2/.snapshot/snap0/lunA Note The LUNs are backed by lunA in the snap0 Snapshot copy.
3	Delete all the LUNs in the active file system that are displayed by the `lun snap usage` command by entering the following command: *lun destroy [-f] lun_path* [lun_path ...]** Example lun destroy /vol/vol2/lunC
4	Delete all the Snapshot copies that are displayed by the `lun snap usage` command in the order they appear, by entering the following command: snap delete vol-name snapshot-name Example snap delete vol2 snap2 snap delete vol2 snap1 Result All the Snapshot copies containing lunB are now deleted and snap0 is no longer busy.
5	Delete the Snapshot copy by entering the following command: snap delete vol-name snapshot-name Example snap delete vol2 snap0

Deleting busy Snapshot copies

What a Snapshot copy in a busy state means

Command to use to find Snapshot copies in a busy state

Deleting Snapshot copies in a busy state

Example

Result

Example

Result

Example

Example

Result

Example