服务器型号：DELL R710
LCD告警：E1211 RAiD Controller battery failure.check battery.(Raid 控制器电池故障，请检查电池）
更换控制器电池需要停机，为减少业务不在线时间，需要提前准备合适的备件。
根据机器型号，Raid控制器型号等信息准备合适的电池。
dmidecode命令使用：
[root@lvmhhk ~]# dmidecode -s
dmidecode: option requires an argument -- 's'
String keyword expected
Valid string keywords are:
bios-vendor
bios-version
bios-release-date
system-manufacturer
system-product-name
system-version
system-serial-number
system-uuid
baseboard-manufacturer
baseboard-product-name
baseboard-version
baseboard-serial-number
baseboard-asset-tag
chassis-manufacturer
chassis-type
chassis-version
chassis-serial-number
chassis-asset-tag
processor-family
processor-manufacturer
processor-version
processor-frequency
#dmidecode -s system-product-number 查看服务器型号----显示DELL R710
#dmidecode -s system-serial-number 查看服务器序列化-----显示DELL R710 SN序列号
查看Raid控制器型号
#lspci |grep -i meg 或 #lspci |grep -i raid
确认Raid控制器型号，采购合适的Raid控制器电池。
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服务器上的Dell PERC控制器上可能出现的“Memory/battery problems were detected.The adapter has recovered, but cached data was lost.Press any key to continue.”（检测到内存/电池问题。适配器已恢复，但缓存数据丢失。按任意键继续。）错误进行故障诊断的信息
附件是：如何对Dell PowerEdge服务器上的Dell PERC控制器上的内存或电池错误进行故障诊断 _ Dell 中国.pdf
