ORACLE RAC 重新安装时清空ASM 磁盘命令

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清空ASM 磁盘内容:

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdb1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 4.93575 seconds, 212 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdc1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.07477 seconds, 207 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdd1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.0718 seconds, 207 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdE1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 0.741614 seconds, 1.4 GB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sde1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.2767 seconds, 199 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdf1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.34942 seconds, 196 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdg1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.39827 seconds, 194 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdh1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.49504 seconds, 191 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdi1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.95308 seconds, 176 MB/s

[root@rac1 ~]

# dd  if=/dev/zero  of=/dev/sdj1  bs=8192  count=128000
128000+0 records in
128000+0 records out
1048576000 bytes (1.0 GB) copied, 5.11809 seconds, 205 MB/s

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