Jingwei.Zhang fb83a57550 fix: update volume snaphost/backup display
1. Update 'snaphost' to 'volume snaphost', 'backup' to 'volume backup'
2. Update e2e case

Change-Id: I74dee2e2da7cbaac4ba7607c83848b28cfb81cde
2022-07-28 15:48:16 +08:00
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