求助，出现超多的warning，好像是硬盘问题。请帮忙看一下。

jazzly

[79007.550271] sd 1:0:0:0: [sda] Sense Key : Recovered Error [current]
[79007.550271] sd 1:0:0:0: [sda] Add. Sense: Failure prediction threshold exceeded
[83131.192464] sd 1:0:0:0: [sda] Sense Key : Recovered Error [current]
[83131.192464] sd 1:0:0:0: [sda] Add. Sense: Failure prediction threshold exceeded
[88033.138032] sd 1:0:0:0: [sda] Sense Key : Recovered Error [current]
[88033.138032] sd 1:0:0:0: [sda] Add. Sense: Failure prediction threshold exceeded
[92387.175690] sd 1:0:0:0: [sda] Sense Key : Recovered Error [current]
[92387.175690] sd 1:0:0:0: [sda] Add. Sense: Failure prediction threshold exceeded
[96492.990802] sd 1:0:0:0: [sda] Sense Key : Recovered Error [current]

如上，出现好像这样的信息。 IBM X服务器，软raid的，但我关了软raid，总共四块SCSI硬盘。sda 用来装系统，后面三块用mdadm作了Raid 5。刚才上去dmesg一看，好多如上的信息。这个代表什么意思呀。是不是说硬盘快不行了？