查看系統硬件錯誤：
root@mc-n1:~# fmadm list-fault -fs
root@mc-n1:~# fmadm faulty
查看磁盤狀態
mcinstall@mc-n1:/var/home/mcinstall % mcmu diskutil -l
[INFO ] Log file path : mc-n1:/var/opt/oracle.minicluster/setup/logs/mcmu_083018_175131.log
su: Sorry
mcinstall@mc-n1:/var/home/mcinstall % mcmu diskutil -s
[INFO ] Log file path : mc-n1:/var/opt/oracle.minicluster/setup/logs/mcmu_083018_175144.log
su: Sorry procedures and policies regarding this diagnosis.
以上錯誤是由於用戶密碼錯誤的修改方式造成的，按下面步驟重新修改用戶密碼即可。
更改密碼：
mcinstall@mc-n1:/var/home/mcinstall % mcmu user --changepswd -u mcinstall
[INFO ] Log file path : mc-n1:/var/opt/oracle.minicluster/setup/logs/mcmu_083018_180621.log
[30/Aug/2018 18:06:37] ERROR /usr/bin/su to root failed. Please check your credentials and try again
[INFO ] Password hint: Should be at least 4 character(s). Should differ from the last password by at least 0 character(s). Should contain a minimum of 0 uppercase letter(s). Should contain a minimum of 0 lowercase letter(s). Should contain a minimum of 0 special character(s). Should contain a minimum of 0 digit(s). Username and password should not be identical. Should contain a minimum of 2 alphabet(s). Should contain a minimum of 1 non-alphabetic character(s).
Enter new password for user mcinstall:
Re-enter new password for user mcinstall:
[INFO ] Checking if nodes are in sync
[30/Aug/2018 18:08:36] ERROR /usr/bin/su to root failed. Please check your credentials and try again
[30/Aug/2018 18:09:07] ERROR /usr/bin/su to root failed. Please check your credentials and try again
[30/Aug/2018 18:10:57] INFO /usr/bin/scp -o ConnectionAttempts=3 -o ServerAliveInterval=1200 -o StrictHostKeyChecking=no /var/opt/oracle.minicluster/store/.mcdata to successful.
[30/Aug/2018 18:11:01] INFO /usr/bin/scp -o ConnectionAttempts=3 -o ServerAliveInterval=1200 -o StrictHostKeyChecking=no /var/opt/oracle.minicluster/store/.mcdata to successful.
[30/Aug/2018 18:11:05] INFO /usr/bin/scp -o ConnectionAttempts=3 -o ServerAliveInterval=1200 -o StrictHostKeyChecking=no /var/opt/oracle.minicluster/store/.mcdata to successful.
[INFO ] Password has been changed
查看磁盤狀態
mcinstall@mc-n1:/var/home/mcinstall % mcmu diskutil -l
[INFO ] Log file path : mc-n1:/var/opt/oracle.minicluster/setup/logs/mcmu_083018_181248.log
[INFO ] Invoked by OS user: root
[INFO ] Find log at: mc-n1:/var/opt/oracle.minicluster/setup/logs/omc_diskutil_083018_181248.log
[INFO ] Set environment variable NOINUSE_CHECK started.
[INFO ] Set environment variable NOINUSE_CHECK succeeded.
DISK STATE
/HDD0 OK
/HDD1 OK
/HDD2 OK
/HDD3 OK
/HDD4 OK
/HDD5 OK
/HDD6 OK
/HDD7 OK
//SYS/MB/EUSB_DISK OK
ORACLE-DE3-24C.1748NMQ02E/HDD0 OK
ORACLE-DE3-24C.1748NMQ02E/HDD1 OK
ORACLE-DE3-24C.1748NMQ02E/HDD2 OK
ORACLE-DE3-24C.1748NMQ02E/HDD3 OK
ORACLE-DE3-24C.1748NMQ02E/HDD4 OK
ORACLE-DE3-24C.1748NMQ02E/HDD5 FAULTY
ORACLE-DE3-24C.1748NMQ02E/HDD6 OK
ORACLE-DE3-24C.1748NMQ02E/HDD7 OK
ORACLE-DE3-24C.1748NMQ02E/HDD8 OK
ORACLE-DE3-24C.1748NMQ02E/HDD9 OK
ORACLE-DE3-24C.1748NMQ02E/HDD10 OK
ORACLE-DE3-24C.1748NMQ02E/HDD11 OK
ORACLE-DE3-24C.1748NMQ02E/HDD12 OK
ORACLE-DE3-24C.1748NMQ02E/HDD13 OK
ORACLE-DE3-24C.1748NMQ02E/HDD14 OK
ORACLE-DE3-24C.1748NMQ02E/HDD15 OK
ORACLE-DE3-24C.1748NMQ02E/HDD16 OK
ORACLE-DE3-24C.1748NMQ02E/HDD17 OK
ORACLE-DE3-24C.1748NMQ02E/HDD18 OK
ORACLE-DE3-24C.1748NMQ02E/HDD19 OK
ORACLE-DE3-24C.1748NMQ02E/HDD20 OK
ORACLE-DE3-24C.1748NMQ02E/HDD21 OK
ORACLE-DE3-24C.1748NMQ02E/HDD22 OK
ORACLE-DE3-24C.1748NMQ02E/HDD23 OK
mcinstall@mc-n1:/var/home/mcinstall % mcmu diskutil -s
[INFO ] Log file path : mc-n1:/var/opt/oracle.minicluster/setup/logs/mcmu_083018_181503.log
[INFO ] Invoked by OS user: root
[INFO ] Find log at: mc-n1:/var/opt/oracle.minicluster/setup/logs/omc_diskutil_083018_181503.log
[INFO ] Set environment variable NOINUSE_CHECK started.
[INFO ] Set environment variable NOINUSE_CHECK succeeded.
DISK PATH LOCAL/JBOD STATE FAULT ERROR
/HDD0 /dev/dsk/c0t5000CCA080680EE8d0 JBOD OK -
/HDD1 /dev/dsk/c0t5000CCA0806970B0d0 JBOD OK -
/HDD2 /dev/dsk/c0t5000CCA0806971C8d0 JBOD OK -
/HDD3 /dev/dsk/c0t5000CCA08069776Cd0 JBOD OK -
/HDD4 /dev/dsk/c0t5000CCA0806800ACd0 JBOD OK -
/HDD5 /dev/dsk/c0t5000CCA080695774d0 JBOD OK -
/HDD6 - JBOD OK -
/HDD7 - JBOD OK -
//SYS/MB/EUSB_DISK /dev/dsk/c1t0d0 Local OK -
ORACLE-DE3-24C.1748NMQ02E/HDD0 /dev/dsk/c0t5000CCA26802CE20d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD1 /dev/dsk/c0t5000CCA268032280d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD2 /dev/dsk/c0t5000CCA2680249D4d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD3 /dev/dsk/c0t5000CCA26801E694d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD4 /dev/dsk/c0t5000CCA268033260d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD5 /dev/dsk/c0t5000CCA26801F494d0 JBOD FAULTY faulty
ORACLE-DE3-24C.1748NMQ02E/HDD6 /dev/dsk/c0t5000CCA08C019268d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD7 /dev/dsk/c0t5000CCA08C01C95Cd0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD8 /dev/dsk/c0t5000CCA08C01DEB0d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD9 /dev/dsk/c0t5000CCA08C01CD20d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD10 /dev/dsk/c0t5000CCA08C01DFDCd0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD11 /dev/dsk/c0t5000CCA08C019624d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD12 /dev/dsk/c0t5000CCA08C01BD20d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD13 /dev/dsk/c0t5000CCA08C01C85Cd0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD14 /dev/dsk/c0t5000CCA08C01D338d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD15 /dev/dsk/c0t5000CCA08C01DF84d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD16 /dev/dsk/c0t5000CCA08C019630d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD17 /dev/dsk/c0t5000CCA09500FD68d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD18 /dev/dsk/c0t5000CCA095011880d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD19 /dev/dsk/c0t5000CCA095010048d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD20 /dev/dsk/c0t5000CCA095010468d0 JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD21 - JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD22 - JBOD OK -
ORACLE-DE3-24C.1748NMQ02E/HDD23 - JBOD OK -
mcinstall@mc-n1:/var/home/mcinstall %
具體更換操作如下：
1) Prepare a Drive for Removal (CLI)
https://docs.oracle.com/cd/E69469_01/html/E69473/grbde.html#scrolltoc
2) Reattach a Replaced Disk (CLI)
https://docs.oracle.com/cd/E69469_01/html/E69473/grbpp.html#scrolltoc