Definition - What does Staggered Spin-Up mean?
Staggered spin-up is a physical performance strategy for serial ATA hard disk drives or RAID DISK drive systems. With staggered spin-up, engineers handle the electrical load and system capacity during startup by staggering the times when disk drives begin input/output (I/O) operations.

With the traditional strategy, all drives spin up when device or system power is turned on, but staggered spin-up delays the spin up of some drives to provide a more stable demand to the power supply.

定义-交错旋转上电是什么意思？

交错启动是串行ATA硬盘驱动器或RAID磁盘驱动器系统的物理性能策略。通过交错启动，工程师在启动期间通过错开磁盘驱动器开始输入/输出（I/O）操作的时间来处理电力负载和系统容量。

在传统策略中，当设备或系统电源打开时，所有驱动器都会启动，但交错启动延迟了一些驱动器的启动，以提供更稳定的电源需求。

Techopedia explains Staggered Spin-Up
Staggered spin-up issues include the following:
Developing system firmware that recognizes the staggered spin-up strategy, rather than demanding that hard disk drives spin up prior to user commands
Operating system (OS) compatibility with the staggered spin-up strategy, preventing situations where an unaware OS reads delayed devices as inaccessible or otherwise does not understand the process.
Staggered spin-up is typically accommodated by a power-on self-test (POST) method, where the basic input/output system (BIOS) controls the boot process.

交错启动问题包括：

开发能够识别交错启动策略的系统固件，而不是要求硬盘驱动器在用户命令之前启动。
操作系统（OS）与交错启动策略的兼容性，防止不知情的操作系统将延迟的设备读作不可访问或不理解进程的情况。
交错启动通常通过开机自检（POST）方法实现，其中基本输入/输出系统（BIOS）控制引导过程。

原文引用自：

https://www.techopedia.com/definition/27699/staggered-spin-up