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Launch Instance---source for openstack

If you want to create an instance that uses ephemeral storage, meaning the instance data is lost when the instance is deleted, then choose one of the following boot sources:

    Image: This option uses an image to boot the instance.
    Instance Snapshot: This option uses an instance snapshot to boot the instance.

If you want to create an instance that uses persistent storage, meaning the instance data is saved when the instance is deleted, then select one of the following boot options:

    Image (with Create New Volume checked): This options uses an image to boot the instance, and creates a new volume to persist instance data. You can specify volume size and whether to delete the volume on deletion of the instance.
    Volume: This option uses a volume that already exists. It does not create a new volume. You can choose to delete the volume on deletion of the instance. Note: when selecting Volume, you can only launch one instance.
    Volume Snapshot: This option uses a volume snapshot to boot the instance, and creates a new volume to persist instance data. You can choose to delete the volume on deletion of the instance.

 

如果希望建立使用臨時儲存的例項,這意味著刪除例項時例項資料丟失,則選擇以下引導源之一:
影象:此選項使用影象啟動例項。
例項快照:此選項使用例項快照來啟動例項。

如果希望建立使用持久儲存的例項,這意味著刪除例項時儲存例項資料,則選擇以下引導選項之一:
影象(選中Create New Volume):此選項使用影象引導例項,並建立新捲來持久化例項資料。您可以指定卷大小以及是否在刪除例項時刪除卷。
卷:這個選項使用已經存在的卷。它不會建立新的卷。您可以選擇在刪除例項時刪除卷。注意:在選擇卷時,只能啟動一個例項。
卷快照:此選項使用卷快照來引導例項,並建立新捲來持久化例項資料。您可以選擇在刪除例項時刪除卷。

  • want to要; <口>應該
  • ephemeral朝生暮死; 短暫的,瞬息的; 朝露; 一年生
  • instance data例項資料; 例項資料
  • one of其中之一
  • Snapshot快照物件; 照片,獨立的印象,簡單印象; 簡介
  • persistent持續的; 持久的; 堅持不懈的; 堅持不渝
  • persist堅持; 存留; 固執; 繼續存在
  • specify指定; 詳述; 提出…的條件; 使具有特性; 明確提出,詳細說明
  • deletion刪除
  • a volume一部;一本