alter ：The managed disk error count warning threshold has been met
drive 错误次数达到阈值
定位 drive id 29 查看状态正常
https://www.ibm.com/support/knowledgecenter/en/STLM5A/com.ibm.storwize.v3700.710.doc/svc_eventcodesinfor_22jcvd.html
V7000 error
原文：https://www.cnblogs.com/dahaoran/p/12362605.html
