GlobalHotSpare

Hot Spare 硬碟更換儲存集區中損壞的硬碟後，將會被加入儲存集區中。 您會需要指定另一顆硬碟以作為保護儲存集區的 Hot Spare 硬碟。

Global Hot Spare：即全局热备盘，为控制扣卡上所有已配置的RAID所共有，1块控制扣卡中可配置1个或多个全局热备盘。 当任意RAID内的与热备盘同类型的硬盘故障时，全局热备盘均可自动替代。

Use a global hot spare drive to replace any failed drive in a redundant drive group as long as its capacity is equal to or larger than the coerced capacity of the failed drive. A global hot spare defined on any channel should be available to replace a fai

配置Hot Spare有两种模式，一种是全局热备，也就是指这个热备硬盘可以做为这个通道上所有阵列的热备； 另一种是独立热备，配置硬盘为某个指定的磁盘组中的所有虚拟磁盘做热备，也就是说这个磁盘组以外的其他阵列即使硬盘掉线， 这个热备也不会去自动做reb.

When a hot spare is activated, it rebuilds the data for all redundant virtual disks that were using the failed hard drive. You can change the hot spare assignment by unassigning a disk and choosing another disk as needed. You can also assign more than one

Hot spares must be scheduled before recovery starts and must meet all the requirements for a virtual disk. When the disk group for which it was assigned is no longer present during import, the dedicated hot spare becomes a global hot spare.