先sysconfig -a\sysconfig -r\environment all检查硬件状态

cf status （还是有故障灯，先进入诊断模式，诊断一下）

cf takeover

当提示输入，按Ctrl+C进入Special Boot Menu --> 选择5 Maintenance Mode

当系统完成引导到OnTap处于>提示符状态，键入halt

进入LOADER>提示符，键入boot_diags进入诊断状态

sldiag

sldiag device clearstatus

sldiag device status

sldiag device show（The listing shows the testable devices, many of which are enabled by default. You should look for devices in the list that are present on controller module and make note of those devices that are not present but are listed as enabled.）

sldiag device modify -selection disable -dev type -name devname（Disable any devices not on the controller module by entering the following command for the device type you want to disable）

sldiag device run

sldiag device status -long -state failed

If the system-level diagnostics tests...

sldiag device clearstatus

sldiag device status

halt （Exit Maintenance mode）

boot_ontap

cf giveback

有可能是spare盘的问题（备用硬盘不足，告警）

nas2a> priv set advanced
nas2a> disk assign -f 0a.00.23 -s unowned
nas2a> disk show -v
nas2a> sysconfig -r
nas2a> disk assign 0a.00.23 -o nas2b
nas2a> priv set 退出到管理模式
nas2b> sysconfig -r