请问DB2的数据如何恢复？

通过以下语句建表空间的
drop tablespace TBS_IDX4K;
CREATE REGULAR TABLESPACE TBS_IDX4K IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 4096 MANAGED BY DATABASE
         USING (device '/dev/mapper/data_vg-db2_idx01'50M)
         EXTENTSIZE 32
         PREFETCHSIZE AUTOMATIC
         BUFFERPOOL IBMDEFAULTBP
         OVERHEAD 12.670000
         TRANSFERRATE 0.180000
         DROPPED TABLE RECOVERY ON;
drop tablespace TBS_LOB1;
CREATE LARGE TABLESPACE TBS_LOB1 IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 32768 MANAGED BY DATABASE
         USING (FILE '/db2_large/tbs_lob1.dat'6000M)
         EXTENTSIZE 32
         PREFETCHSIZE AUTOMATIC
         BUFFERPOOL BUF32K         
         OVERHEAD 12.670000
         TRANSFERRATE 0.180000;
drop tablespace TBS_LOB2;
CREATE LARGE TABLESPACE TBS_LOB2 IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 32768 MANAGED BY DATABASE
         USING (FILE '/db2_large/tbs_lob2.dat'6000M)
         EXTENTSIZE 32
         PREFETCHSIZE AUTOMATIC
         BUFFERPOOL BUF32K
         OVERHEAD 12.670000
         TRANSFERRATE 0.180000;

drop tablespace TBS_8K;
CREATE REGULAR TABLESPACE TBS_8K IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 8192 MANAGED BY DATABASE
         USING (device '/dev/mapper/data_vg-db2_dta02'100M)
         EXTENTSIZE 32
         PREFETCHSIZE AUTOMATIC
         BUFFERPOOL BUF8K
         OVERHEAD 12.670000
         TRANSFERRATE 0.180000
         DROPPED TABLE RECOVERY ON;
         
CREATE SYSTEM TEMPORARY TABLESPACE TBS_systmp IN DATABASE PARTITION GROUP IBMTEMPGROUP PAGESIZE 4096 MANAGED BY SYSTEM         USING ('/db2_systmp')
         EXTENTSIZE 8
         BUFFERPOOL IBMDEFAULTBP;
DROP TABLESPACE TEMPSPACE1;

DROP TABLESPACE TBS_IDX_CISA_E, TBS_TABLE_CISA_E;

CREATE REGULAR TABLESPACE TBS_TABLE_CISA_E IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 4096 MANAGED BY DATABASE
         USING (device '/dev/mapper/data_vg-db2_jf_dta01'500M)
         EXTENTSIZE 32
         PREFETCHSIZE AUTOMATIC
         BUFFERPOOL IBMDEFAULTBP
         OVERHEAD 12.670000
         TRANSFERRATE 0.180000
         DROPPED TABLE RECOVERY ON;


CREATE REGULAR TABLESPACE TBS_IDX_CISA_E IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 4096 MANAGED BY DATABASE
         USING (device '/dev/mapper/data_vg-db2_jf_idx01'250M)
         EXTENTSIZE 32
         PREFETCHSIZE AUTOMATIC
         BUFFERPOOL IBMDEFAULTBP
         OVERHEAD 12.670000
         TRANSFERRATE 0.180000
         DROPPED TABLE RECOVERY ON;


drop tablespace userspace1;

CREATE REGULAR TABLESPACE USERSPACE1 IN DATABASE PARTITION GROUP IBMDEFAULTGROUP PAGESIZE 4096 MANAGED BY DATABASE
         USING (device '/dev/mapper/data_vg-db2_dta01'1000M)
         EXTENTSIZE 32
         PREFETCHSIZE AUTOMATIC
         BUFFERPOOL IBMDEFAULTBP
         OVERHEAD 12.670000
         TRANSFERRATE 0.180000
         DROPPED TABLE RECOVERY ON;