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BDA Disk prediction failure replacement

User_OFULTNov 18 2020

Hi,
We've a BDA Oracle Linux with 1 disk in prediction failure.
Drive /c0/e8/s7 State :
=====================
Shield Counter = 0
Media Error Count = 0
Other Error Count = 0
Drive Temperature = 29C (84.20 F)
Predictive Failure Count = 370
S.M.A.R.T alert flagged by drive = Yes

We've a total of 6 server. Every server has 12 filesystem for 12 disks:
[root@pnqdias01lama04 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md2 459G 54G 382G 13% /
tmpfs 127G 4.0K 127G 1% /dev/shm
/dev/sda4 6.6T 612G 6.0T 10% /u01
/dev/sdb4 6.6T 1.9T 4.8T 29% /u02
/dev/sdc1 7.1T 577G 6.6T 8% /u03
/dev/sdd1 7.1T 569G 6.6T 8% /u04
/dev/sde1 7.1T 581G 6.6T 8% /u05
/dev/sdf1 7.1T 581G 6.6T 9% /u06
/dev/sdg1 7.1T 582G 6.6T 9% /u07
/dev/sdh1 7.1T 582G 6.6T 9% /u08
/dev/sdi1 7.1T 581G 6.6T 9% /u09
/dev/sdj1 7.1T 585G 6.6T 9% /u10 <--- This is the disk with the prediction failure count to 370
/dev/sdk1 7.1T 589G 6.6T 9% /u11
/dev/sdl1 7.1T 585G 6.6T 9% /u12
cm_processes 127G 107M 126G 1% /var/run/cloudera-scm-agent/process
10.179.104.56:/p_cft 160G 112G 49G 70% /u02/NQDI/CFT
pnqdias01lama03.rete.poste:/opt/exportdir
459G 200G 236G 46% /opt/shareddir
//10.179.104.56/p_mig
40G 35G 5.9G 86% /u02/NQDI/MIG

Now I have the new disk of 8Tb and I want to replace the old. I have found the following Oracle guide: Doc ID 1581583.1.
It is very clear but I have a very BIG BIG doubt: what about the data? I have to backup data in /u10 and restore? It will rebuild all data himself? Is a production environment, I have to close all the service?

Thanks
Marco

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Added on Nov 18 2020
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