Github user ustcweizhou commented on the pull request:
https://github.com/apache/cloudstack/pull/1145#issuecomment-161243997
@wilderrodrigues I just tested.
I set the storage.cleanup.interval to 60s, the storage.cleanup.delay to
120s.
I restored a VM, then the old volume of the vm will be in 'Destroy' state
```
mysql> select id,name,uuid,created,updated,removed,state from volumes where
id=7574\G
*************************** 1. row ***************************
id: 7574
name: ROOT-7558
uuid: 82c5991d-5211-4fd8-bd8b-f1285cc50574
created: 2015-11-30 08:27:36
updated: 2015-12-02 09:50:34
removed: NULL
state: Destroy
1 row in set (0.00 sec)
```
The volume is expunged after 2-3 minutes.
```
mysql> select id,name,uuid,created,updated,removed,state from volumes where
id=7574\G
*************************** 1. row ***************************
id: 7574
name: ROOT-7558
uuid: 82c5991d-5211-4fd8-bd8b-f1285cc50574
created: 2015-11-30 08:27:36
updated: 2015-12-02 09:53:31
removed: 2015-12-02 09:53:31
state: Expunged
1 row in set (0.00 sec)
```
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