How to Configure Global Hot Spare in Dell PowerEdge via iDRAC

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rebuild

A dedicated hot spare is assigned to one or more arrays. It will protect any redundant logical drive on those arrays. Note: You must create the array before you can assign a dedicated hot spare to ...

进入硬盘选择界面。 选择要设置的硬盘并按“Enter”。 没有加入Array且与Array成员盘类型一致的硬盘可设置为热备盘。 建议使用与Array的成员盘型号、容量一致的硬盘作为热备盘。 选择“Assign Dedicated Spare”或“Assign Auto Replace Spare”并按“Enter”。 提示操作成功。

A hot spare is an extra, unused drive that is part of the disk subsystem. A hot spare is usually in Standby mode, ready for service if a drive in an array fails. Hot spares let you replace failed drives without a system shutdown or user intervention.

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 ...

A dedicated hot spare is a hot spare disk that can only be used for one redundant virtual disk. It is also possible to assign a dedicated hot spare reserve to protect more than one logical drive; this is called a pool reserve.

Unlike "Global Hot Spare" which can be used with any RAID groups, Dedicated Hot Spare can only be used with a specific RAID group. When a disk drive fails in the RAID group with a Dedicated Hot Spare is pre-set, data on the disk drive is rebuild