Linux Drive Device Down

I ran the following in a linux server.  One physical drive is down.  I believe is sdd drive.  Before we order another physical drive. Can someone suggest any utilities to see if the drive can be repaired  and put into the raid.

[root@r101s0u1bak ~]# cat /proc/mdstat
Personalities : [raid1] [raid0]
md5 : active raid0 md3[0] md4[1]
      3802994752 blocks 64k chunks

md1 : active raid1 sdb3[1] sda3[0]
      8008320 blocks [2/2] [UU]

md3 : active raid1 sdb5[1] sda5[0]
      1899493312 blocks [2/2] [UU]

md2 : active raid1 sdc1[1]
      50010176 blocks [2/1] [_U]

md4 : active raid1 sdc2[1]
      1903501568 blocks [2/1] [_U]


md0 : active raid1 sdb2[1] sda2[0]
      45761088 blocks [2/2] [UU]
ShenAsked:
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DavidConnect With a Mentor PresidentCommented:
The SSD manufacturers have diagnostics that you can download and run.  If the SSD fails diagnostics, replace the unit and hope you have a warranty.
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ShenAuthor Commented:
thanks,
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Saravanan PalanisamySystems EngineerCommented:
It looks like RAID1 array[sdc & sdd].
You can use mdadm command utility to check the rebuilding/repairing process.
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