linux环境下删除用drop tablespace XXX including contents and datafiles删除表空间后，磁盘空间不释放。
用lsof -n | grep deleted来查看还在使用删除掉文件的pid，直接kill掉就可以了。
[root@l5mdev124 ~]# lsof -n | grep deleted
oracle 3396 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3398 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3400 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3402 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3404 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3406 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3408 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3410 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3413 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3415 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3417 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3419 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3421 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3430 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 3446 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 15099 oracle 9u REG 8,5 0 25956467 /u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)
oracle 17507 oracle 10u REG 8,21 10737426432 41959450 /u03/oradata/orcl/NNDSPACE_3007.dbf (deleted)
oracle 17507 oracle 11u REG 8,21 10737426432 41959452 /u03/oradata/orcl/NNDSPACE_3009.dbf (deleted)
oracle 17507 oracle 12u REG 8,22 10737426432 5406734 /u04/oradata/orcl/NNDSPACE_4002.dbf (deleted)
oracle 17507 oracle 14u REG 8,22 10737426432 5406736 /u04/oradata/orcl/NNDSPACE_4004.dbf (deleted)
oracle 17507 oracle 15u REG 8,21 2936020992 41975870 /u03/oradata/orcl/NNDSPACE_3014.dbf (deleted)
oracle 17507 oracle 16u REG 8,22 104865792 5406737 /u04/oradata/orcl/NNDSPACE_4005.dbf (deleted)
oracle 17507 oracle 17u REG 8,21 10737426432 41959446 /u03/oradata/orcl/NNDSPACE_3004.dbf (deleted)
oracle 17507 oracle 18u REG 8,22 10737426432 5406733 /u04/oradata/orcl/NNDSPACE_4001.dbf (deleted)
oracle 17507 oracle 19u REG 8,21 3460308992 41975862 /u03/oradata/orcl/NNDSPACE_3011.dbf (deleted)
oracle 17507 oracle 20u REG 8,21 3355451392 41975863 /u03/oradata/orcl/NNDSPACE_3012.dbf (deleted)
oracle 17507 oracle 21u REG 8,21 3355451392 41975869 /u03/oradata/orcl/NNDSPACE_3013.dbf (deleted)
oracle 17507 oracle 22u REG 8,22 104865792 5406738 /u04/oradata/orcl/NNDSPACE_4006.dbf (deleted)
oracle 17507 oracle 23u REG 8,21 10737426432 41959453 /u03/oradata/orcl/NNDSPACE_3010.dbf (deleted)
oracle 17507 oracle 24u REG 8,22 104865792 5406754 /u04/oradata/orcl/NNDSPACE_4009.dbf (deleted)
oracle 17507 oracle 25u REG 8,22 104865792 5406755 /u04/oradata/orcl/NNDSPACE_4010.dbf (deleted)
oracle 17507 oracle 26u REG 8,22 9428803584 55427087 /u04/oradata/orcl/NNDSPACE_4007.dbf (deleted)
oracle 17507 oracle 27u REG 8,22 10381959168 55689217 /u04/oradata/orcl/NNDSPACE_4008.dbf (deleted)
oracle 17507 oracle 28u REG 8,21 10737426432 41959437 /u03/oradata/orcl/NNDSPACE_3001.dbf (deleted)
oracle 17507 oracle 29u REG 8,21 10737426432 41959441 /u03/oradata/orcl/NNDSPACE_3002.dbf (deleted)
oracle 17507 oracle 30u REG 8,21 10737426432 41959445 /u03/oradata/orcl/NNDSPACE_3003.dbf (deleted)
oracle 17507 oracle 31u REG 8,21 10737426432 41959447 /u03/oradata/orcl/NNDSPACE_3005.dbf (deleted)
oracle 17507 oracle 32u REG 8,21 10737426432 41959449 /u03/oradata/orcl/NNDSPACE_3006.dbf (deleted)
oracle 17507 oracle 33u REG 8,21 10737426432 41959451 /u03/oradata/orcl/NNDSPACE_3008.dbf (deleted)
oracle 17507 oracle 34u REG 8,22 10737426432 5406735 /u04/oradata/orcl/NNDSPACE_4003.dbf (deleted)
oracle 17517 oracle 11u REG 8,21 10737426432 41959447 /u03/oradata/orcl/NNDSPACE_3005.dbf (deleted)
oracle 17517 oracle 12u REG 8,21 10737426432 41959449 /u03/oradata/orcl/NNDSPACE_3006.dbf (deleted)
oracle 17517 oracle 14u REG 8,21 10737426432 41959450 /u03/oradata/orcl/NNDSPACE_3007.dbf (deleted)
oracle 17517 oracle 15u REG 8,21 10737426432 41959451 /u03/oradata/orcl/NNDSPACE_3008.dbf (deleted)
oracle 17517 oracle 16u REG 8,21 10737426432 41959452 /u03/oradata/orcl/NNDSPACE_3009.dbf (deleted)
oracle 17517 oracle 17u REG 8,21 10737426432 41959453 /u03/oradata/orcl/NNDSPACE_3010.dbf (deleted)
oracle 17517 oracle 18u REG 8,22 10737426432 5406733 /u04/oradata/orcl/NNDSPACE_4001.dbf (deleted)
oracle 17517 oracle 19u REG 8,22 10737426432 5406734 /u04/oradata/orcl/NNDSPACE_4002.dbf (deleted)
oracle 17517 oracle 20u REG 8,21 3355451392 41975863 /u03/oradata/orcl/NNDSPACE_3012.dbf (deleted)
oracle 17517 oracle 21u REG 8,21 3355451392 41975869 /u03/oradata/orcl/NNDSPACE_3013.dbf (deleted)
oracle 17517 oracle 22u REG 8,21 2936020992 41975870 /u03/oradata/orcl/NNDSPACE_3014.dbf (deleted)
oracle 17517 oracle 23u REG 8,22 104865792 5406737 /u04/oradata/orcl/NNDSPACE_4005.dbf (deleted)
oracle 17517 oracle 24u REG 8,22 104865792 5406738 /u04/oradata/orcl/NNDSPACE_4006.dbf (deleted)
oracle 17517 oracle 25u REG 8,22 104865792 5406754 /u04/oradata/orcl/NNDSPACE_4009.dbf (deleted)
oracle 17517 oracle 26u REG 8,22 104865792 5406755 /u04/oradata/orcl/NNDSPACE_4010.dbf (deleted)
oracle 17517 oracle 27u REG 8,22 9428803584 55427087 /u04/oradata/orcl/NNDSPACE_4007.dbf (deleted)
oracle 17517 oracle 28u REG 8,22 10381959168 55689217 /u04/oradata/orcl/NNDSPACE_4008.dbf (deleted)
oracle 17517 oracle 29u REG 8,21 10737426432 41959441 /u03/oradata/orcl/NNDSPACE_3002.dbf (deleted)
oracle 17517 oracle 30u REG 8,21 10737426432 41959445 /u03/oradata/orcl/NNDSPACE_3003.dbf (deleted)
oracle 17517 oracle 31u REG 8,21 10737426432 41959446 /u03/oradata/orcl/NNDSPACE_3004.dbf (deleted)
oracle 17517 oracle 32u REG 8,22 10737426432 5406736 /u04/oradata/orcl/NNDSPACE_4004.dbf (deleted)
oracle 17517 oracle 33u REG 8,21 3460308992 41975862 /u03/oradata/orcl/NNDSPACE_3011.dbf (deleted)
oracle 17517 oracle 34u REG 8,22 10737426432 5406735 /u04/oradata/orcl/NNDSPACE_4003.dbf (deleted)
oracle 17517 oracle 35u REG 8,21 10737426432 41959437 /u03/oradata/orcl/NNDSPACE_3001.dbf (deleted)
oracle 17521 oracle 10u REG 8,21 3355451392 41975863 /u03/oradata/orcl/NNDSPACE_3012.dbf (deleted)
oracle 17521 oracle 11u REG 8,21 10737426432 41959452 /u03/oradata/orcl/NNDSPACE_3009.dbf (deleted)
oracle 17521 oracle 12u REG 8,22 10737426432 5406733 /u04/oradata/orcl/NNDSPACE_4001.dbf (deleted)
oracle 17521 oracle 14u REG 8,21 10737426432 41959437 /u03/oradata/orcl/NNDSPACE_3001.dbf (deleted)
oracle 17521 oracle 15u REG 8,21 10737426432 41959445 /u03/oradata/orcl/NNDSPACE_3003.dbf (deleted)
oracle 17521 oracle 16u REG 8,21 10737426432 41959450 /u03/oradata/orcl/NNDSPACE_3007.dbf (deleted)
oracle 17521 oracle 17u REG 8,22 10737426432 5406735 /u04/oradata/orcl/NNDSPACE_4003.dbf (deleted)
oracle 17521 oracle 18u REG 8,21 10737426432 41959451 /u03/oradata/orcl/NNDSPACE_3008.dbf (deleted)
oracle 17521 oracle 19u REG 8,22 104865792 5406737 /u04/oradata/orcl/NNDSPACE_4005.dbf (deleted)
oracle 17521 oracle 20u REG 8,22 104865792 5406738 /u04/oradata/orcl/NNDSPACE_4006.dbf (deleted)
oracle 17521 oracle 21u REG 8,22 10737426432 5406734 /u04/oradata/orcl/NNDSPACE_4002.dbf (deleted)
oracle 17521 oracle 22u REG 8,22 9428803584 55427087 /u04/oradata/orcl/NNDSPACE_4007.dbf (deleted)
oracle 17521 oracle 23u REG 8,22 10737426432 5406736 /u04/oradata/orcl/NNDSPACE_4004.dbf (deleted)
oracle 17521 oracle 24u REG 8,21 3460308992 41975862 /u03/oradata/orcl/NNDSPACE_3011.dbf (deleted)
oracle 17521 oracle 25u REG 8,21 3355451392 41975869 /u03/oradata/orcl/NNDSPACE_3013.dbf (deleted)
oracle 17521 oracle 26u REG 8,21 2936020992 41975870 /u03/oradata/orcl/NNDSPACE_3014.dbf (deleted)
oracle 17521 oracle 27u REG 8,22 10381959168 55689217 /u04/oradata/orcl/NNDSPACE_4008.dbf (deleted)
oracle 17521 oracle 28u REG 8,21 10737426432 41959453 /u03/oradata/orcl/NNDSPACE_3010.dbf (deleted)
oracle 17531 oracle 10u REG 8,22 10737426432 5406733 /u04/oradata/orcl/NNDSPACE_4001.dbf (deleted)
oracle 17531 oracle 11u REG 8,21 10737426432 41959452 /u03/oradata/orcl/NNDSPACE_3009.dbf (deleted)
oracle 17531 oracle 12u REG 8,21 10737426432 41959451 /u03/oradata/orcl/NNDSPACE_3008.dbf (deleted)
oracle 17531 oracle 14u REG 8,22 104865792 5406737 /u04/oradata/orcl/NNDSPACE_4005.dbf (deleted)
oracle 17531 oracle 15u REG 8,22 104865792 5406738 /u04/oradata/orcl/NNDSPACE_4006.dbf (deleted)
oracle 17531 oracle 16u REG 8,22 10737426432 5406736 /u04/oradata/orcl/NNDSPACE_4004.dbf (deleted)
oracle 17531 oracle 17u REG 8,21 10737426432 41959437 /u03/oradata/orcl/NNDSPACE_3001.dbf (deleted)
oracle 17531 oracle 18u REG 8,21 10737426432 41959441 /u03/oradata/orcl/NNDSPACE_3002.dbf (deleted)
oracle 17531 oracle 19u REG 8,21 10737426432 41959445 /u03/oradata/orcl/NNDSPACE_3003.dbf (deleted)
oracle 17531 oracle 20u REG 8,21 10737426432 41959446 /u03/oradata/orcl/NNDSPACE_3004.dbf (deleted)
oracle 17531 oracle 21u REG 8,21 10737426432 41959447 /u03/oradata/orcl/NNDSPACE_3005.dbf (deleted)
oracle 17531 oracle 22u REG 8,21 10737426432 41959449 /u03/oradata/orcl/NNDSPACE_3006.dbf (deleted)
oracle 17531 oracle 23u REG 8,21 10737426432 41959450 /u03/oradata/orcl/NNDSPACE_3007.dbf (deleted)
oracle 17531 oracle 24u REG 8,21 2936020992 41975870 /u03/oradata/orcl/NNDSPACE_3014.dbf (deleted)
oracle 17531 oracle 25u REG 8,21 10737426432 41959453 /u03/oradata/orcl/NNDSPACE_3010.dbf (deleted)
oracle 17531 oracle 26u REG 8,22 10737426432 5406734 /u04/oradata/orcl/NNDSPACE_4002.dbf (deleted)
oracle 17531 oracle 27u REG 8,22 10737426432 5406735 /u04/oradata/orcl/NNDSPACE_4003.dbf (deleted)
oracle 17531 oracle 28u REG 8,21 3460308992 41975862 /u03/oradata/orcl/NNDSPACE_3011.dbf (deleted)
oracle 17531 oracle 29u REG 8,21 3355451392 41975863 /u03/oradata/orcl/NNDSPACE_3012.dbf (deleted)
oracle 17531 oracle 30u REG 8,21 3355451392 41975869 /u03/oradata/orcl/NNDSPACE_3013.dbf (deleted)
oracle 17531 oracle 31u REG 8,22 9428803584 55427087 /u04/oradata/orcl/NNDSPACE_4007.dbf (deleted)
oracle 17531 oracle 32u REG 8,22 10381959168 55689217 /u04/oradata/orcl/NNDSPACE_4008.dbf (deleted)
oracle 17531 oracle 33u REG 8,22 104865792 5406755 /u04/oradata/orcl/NNDSPACE_4010.dbf (deleted)
oracle 17531 oracle 34u REG 8,22 104865792 5406754 /u04/oradata/orcl/NNDSPACE_4009.dbf (deleted)
oracle 17533 oracle 15u REG 8,22 10737426432 5406733 /u04/oradata/orcl/NNDSPACE_4001.dbf (deleted)
oracle 17533 oracle 16u REG 8,22 10737426432 5406736 /u04/oradata/orcl/NNDSPACE_4004.dbf (deleted)
oracle 17533 oracle 17u REG 8,21 10737426432 41959452 /u03/oradata/orcl/NNDSPACE_3009.dbf (deleted)
oracle 17533 oracle 18u REG 8,21 10737426432 41959446 /u03/oradata/orcl/NNDSPACE_3004.dbf (deleted)
oracle 17533 oracle 19u REG 8,21 10737426432 41959451 /u03/oradata/orcl/NNDSPACE_3008.dbf (deleted)
oracle 17533 oracle 20u REG 8,22 10737426432 5406734 /u04/oradata/orcl/NNDSPACE_4002.dbf (deleted)
oracle 17533 oracle 21u REG 8,21 2936020992 41975870 /u03/oradata/orcl/NNDSPACE_3014.dbf (deleted)
oracle 17533 oracle 22u REG 8,22 104865792 5406738 /u04/oradata/orcl/NNDSPACE_4006.dbf (deleted)
oracle 17533 oracle 23u REG 8,22 104865792 5406737 /u04/oradata/orcl/NNDSPACE_4005.dbf (deleted)
oracle 17533 oracle 24u REG 8,21 10737426432 41959453 /u03/oradata/orcl/NNDSPACE_3010.dbf (deleted)
oracle 17533 oracle 25u REG 8,21 3460308992 41975862 /u03/oradata/orcl/NNDSPACE_3011.dbf (deleted)
oracle 17533 oracle 26u REG 8,21 3355451392 41975863 /u03/oradata/orcl/NNDSPACE_3012.dbf (deleted)
oracle 17533 oracle 27u REG 8,21 3355451392 41975869 /u03/oradata/orcl/NNDSPACE_3013.dbf (deleted)
oracle 17533 oracle 28u REG 8,21 10737426432 41959447 /u03/oradata/orcl/NNDSPACE_3005.dbf (deleted)
oracle 17533 oracle 29u REG 8,21 10737426432 41959445 /u03/oradata/orcl/NNDSPACE_3003.dbf (deleted)
oracle 17533 oracle 30u REG 8,22 10737426432 5406735 /u04/oradata/orcl/NNDSPACE_4003.dbf (deleted)
oracle 17533 oracle 31u REG 8,22 104865792 5406754 /u04/oradata/orcl/NNDSPACE_4009.dbf (deleted)
oracle 17533 oracle 32u REG 8,22 104865792 5406755 /u04/oradata/orcl/NNDSPACE_4010.dbf (deleted)
oracle 17533 oracle 33u REG 8,22 9428803584 55427087 /u04/oradata/orcl/NNDSPACE_4007.dbf (deleted)
oracle 17533 oracle 34u REG 8,22 10381959168 55689217 /u04/oradata/orcl/NNDSPACE_4008.dbf (deleted)
oracle 17533 oracle 35u REG 8,21 10737426432 41959437 /u03/oradata/orcl/NNDSPACE_3001.dbf (deleted)
oracle 17533 oracle 36u REG 8,21 10737426432 41959441 /u03/oradata/orcl/NNDSPACE_3002.dbf (deleted)
oracle 17533 oracle 37u REG 8,21 10737426432 41959449 /u03/oradata/orcl/NNDSPACE_3006.dbf (deleted)
oracle 17533 oracle 38u REG 8,21 10737426432 41959450 /u03/oradata/orcl/NNDSPACE_3007.dbf (deleted)
oracle 17535 oracle 10u REG 8,22 10737426432 5406734 /u04/oradata/orcl/NNDSPACE_4002.dbf (deleted)
oracle 17535 oracle 11u REG 8,22 10737426432 5406736 /u04/oradata/orcl/NNDSPACE_4004.dbf (deleted)
oracle 17535 oracle 12u REG 8,22 104865792 5406737 /u04/oradata/orcl/NNDSPACE_4005.dbf (deleted)
oracle 17535 oracle 14u REG 8,21 10737426432 41959441 /u03/oradata/orcl/NNDSPACE_3002.dbf (deleted)
oracle 17535 oracle 15u REG 8,21 10737426432 41959450 /u03/oradata/orcl/NNDSPACE_3007.dbf (deleted)
oracle 17535 oracle 16u REG 8,21 10737426432 41959452 /u03/oradata/orcl/NNDSPACE_3009.dbf (deleted)
oracle 17535 oracle 17u REG 8,21 10737426432 41959445 /u03/oradata/orcl/NNDSPACE_3003.dbf (deleted)
oracle 17535 oracle 18u REG 8,21 10737426432 41959446 /u03/oradata/orcl/NNDSPACE_3004.dbf (deleted)
oracle 17535 oracle 19u REG 8,22 10737426432 5406735 /u04/oradata/orcl/NNDSPACE_4003.dbf (deleted)
oracle 17535 oracle 20u REG 8,21 10737426432 41959449 /u03/oradata/orcl/NNDSPACE_3006.dbf (deleted)
oracle 17535 oracle 21u REG 8,21 10737426432 41959451 /u03/oradata/orcl/NNDSPACE_3008.dbf (deleted)
oracle 17535 oracle 22u REG 8,21 10737426432 41959447 /u03/oradata/orcl/NNDSPACE_3005.dbf (deleted)
oracle 17535 oracle 23u REG 8,21 10737426432 41959453 /u03/oradata/orcl/NNDSPACE_3010.dbf (deleted)
oracle 17535 oracle 24u REG 8,22 10737426432 5406733 /u04/oradata/orcl/NNDSPACE_4001.dbf (deleted)
oracle 17535 oracle 25u REG 8,22 104865792 5406738 /u04/oradata/orcl/NNDSPACE_4006.dbf (deleted)
oracle 17535 oracle 26u REG 8,22 9428803584 55427087 /u04/oradata/orcl/NNDSPACE_4007.dbf (deleted)
oracle 17535 oracle 27u REG 8,22 10381959168 55689217 /u04/oradata/orcl/NNDSPACE_4008.dbf (deleted)
oracle 17535 oracle 28u REG 8,21 3460308992 41975862 /u03/oradata/orcl/NNDSPACE_3011.dbf (deleted)
oracle 17535 oracle 29u REG 8,21 3355451392 41975863 /u03/oradata/orcl/NNDSPACE_3012.dbf (deleted)
oracle 17535 oracle 30u REG 8,21 3355451392 41975869 /u03/oradata/orcl/NNDSPACE_3013.dbf (deleted)
oracle 17535 oracle 31u REG 8,21 2936020992 41975870 /u03/oradata/orcl/NNDSPACE_3014.dbf (deleted)
oracle 17535 oracle 32u REG 8,21 10737426432 41959437 /u03/oradata/orcl/NNDSPACE_3001.dbf (deleted)
oracle 17535 oracle 34u REG 8,22 104865792 5406754 /u04/oradata/orcl/NNDSPACE_4009.dbf (deleted)
oracle 17535 oracle 35u REG 8,22 104865792 5406755 /u04/oradata/orcl/NNDSPACE_4010.dbf (deleted)
[root@l5mdev124 ~]# kill -9 17535
[root@l5mdev124 ~]# kill -9 17533
[root@l5mdev124 ~]# kill -9 17531
将除了/u01/app/oracle/product/10201/dbs/lkinstorcl (deleted)相关的进程pid都kill掉，过段时间开始通过df -h发现磁盘空间开始释放了！
[root@l5mdev124 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md1 9.7G 2.4G 6.9G 26% /
/dev/md0 99M 12M 83M 13% /boot
ramfs 8.0G 2.0G 6.1G 25% /dev/shm
tmpfs 8.0G 2.0G 6.1G 25% /dev/shm
/dev/sda5 903G 832G 25G 98% /u01
/dev/sda6 903G 833G 24G 98% /u02
/dev/sdb5 903G 744G 113G 87% /u03
/dev/sdb6 903G 782G 76G 92% /u04