哪位帮我诊断下，服务器硬盘出现问题。

csstudy

服务器硬盘灯为黄色，以下是log日志，虽然服务器目前正常运行，但我担心什么了？请帮我诊断。谢谢了。另外我的服务器双块硬盘做了raid1
Mar 16 20:01:52 wd kernel: aacraid:ID(0:02:0); Error Event [command:0x2a]
Mar 16 20:01:52 wd kernel: aacraid:ID(0:02:0); Hardware Error [k:0x4,c:0x3,q:0x80]
Mar 16 20:01:52 wd kernel: aacraid:ID(0:02:0); Peripheral Device Write Fault
Mar 16 20:03:17 wd su(pam_unix)[2155]: session opened for user root by www(uid=500)
Mar 16 20:04:20 wd kernel: aacraid:Battery charge is now OK
Mar 16 20:05:30 wd kernel: aacraid:ID(0:00:0); Error Event [command:0x28]
Mar 16 20:05:30 wd kernel: aacraid:ID(0:00:0); Medium Error [k:0x3,c:0x11,q:0x1]
Mar 16 20:05:30 wd kernel: aacraid:ID(0:00:0); Read Retries Exhausted
Mar 16 20:05:31 wda kernel: aacraid:Container 0 failed REBUILD task: I/O error - drive 0:0:0 faile