1. 查看表空间状态
1）使用一条命令即可查看表空间的状态信息，格式化输出 db2 list tablespaces show detail
db2 list tablespaces show detail | while read line ; do w1=$(echo "$line" | cut -d" " -f1); if [ "$w1" == "Tablespace" ];then tabid=$(echo "$line" | cut -d‘=‘ -f2);fi; if [ "$w1" == "Name" ];then name=$(echo "$line" | cut -d‘=‘ -f2); fi; if [ "$w1" == "Type" ];then type=$(echo "$line" | cut -d‘=‘ -f2);type1=$(echo "$type" | awk ‘{print $1}‘); if [ "$type1" == "System" ];then Ttype=‘SMS‘; else Ttype=‘DMS‘; fi; fi; if [ "$w1" == "Contents" ];then contents=$(echo "$line" | cut -d‘=‘ -f2); fi; if [ "$w1" == "State" ];then state=$(echo "$line" | cut -d‘=‘ -f2);fi; if [ "$w1" == "Total" ];then total=$(echo "$line" | cut -d‘=‘ -f2);fi;if [ "$w1" == "Used" ]; then used=$(echo "$line" | cut -d‘=‘ -f2); fi; if [ "$w1" == "Free" ]; then free=$(echo "$line" | cut -d‘=‘ -f2); fi; if [ "$w1" == "Page" ];then page=$(echo "$line" | cut -d‘=‘ -f2); printf "%-25s%-5s%-5s%-5s%-10s%-20s%-20s%-30s\n" $name $tabid $page $Ttype $state $total $used; fi done
我们有时候需要查看表空间状态，方式有很多，db2pd, db2 list, 当表空间较多的情况下，往往信息太多，导致不是很方便的查看信息。对于db2pd 方便之处在于不用连接数据库，即可以查询表空间信息，并且对表空间信息进行了较全的输出；db2 list,可以以表空间为单位输出对应表空间的信息；但是这两种方式对于表空间较多的数据库来说用起来很不方便。
查看表空间状态
db2 list tablespaces show detail | while read line ; do w1=$(echo "$line" | cut -d" " -f1); if [ "$w1" == "Tablespace" ];then tabid=$(echo "$line" | cut -d‘=‘ -f2); fi; if [ "$w1" == "Name" ];then name=$(echo "$line" | cut -d‘=‘ -f2);fi; if [ "$w1" == "Type" ];then type=$(echo "$line" | cut -d‘=‘ -f2);type1=$(echo "$type" | awk ‘{print $1}‘); if [ "$type1" == "System" ];then Ttype=‘SMS‘; else Ttype=‘DMS‘; fi; fi; if [ "$w1" == "State" ];then state=$(echo "$line" | cut -d‘=‘ -f2); printf "%-25s%-10s%-10s%10s\n" $name $tabid $Ttype $state; fi; done
===DISPLAY：
SYSCATSPACE 0 DMS 0x0000
TEMPSPACE1 1 SMS 0x0000
USERSPACE1 2 DMS 0x0000
SYSTOOLSPACE 3 DMS 0x0000
SYSTOOLSTMPSPACE 4 SMS 0x0000
2）通过视图查看表空间信息
db2 "select substr(TBSP_NAME,1,20) as TBSPNAME,
TBSP_TYPE,
substr(TBSP_STATE,1,10) as TBSPSTATE ,
substr(TBSP_TOTAL_PAGES,1,10) as TOTAL_PAGES,
substr(TBSP_USABLE_PAGES,1,10) as USABLE_PAGES,
substr(TBSP_USED_PAGES,1,5) as USED_PAGES,
substr(TBSP_FREE_PAGES,1,5) as FREE_PAGES,
substr(TBSP_MAX_SIZE,1,5) as MAX_SIZE,
substr(TBSP_USING_AUTO_STORAGE,1,2) as AUTOStr,
substr(TBSP_AUTO_RESIZE_ENABLED,1,2) as AUTORes from SYSIBMADM.TBSP_UTILIZATION"
2. 表空间自动扩展设置
1）查看表空间是否为自动扩展
db2 "select substr(TBSP_NAME,1,30) as DMS_tablespace_without_autoresize, TBSP_USING_AUTO_STORAGE, TBSP_AUTO_RESIZE_ENABLED from SYSIBMADM.TBSP_UTILIZATION where TBSP_TYPE=‘DMS‘ and TBSP_AUTO_RESIZE_ENABLED=0"
2）生成修改表空间为自动扩展
db2 -x "select ‘ALTER TABLESPACE ‘|| TBSP_NAME ||‘ AUTORESIZE YES;‘ from SYSIBMADM.TBSP_UTILIZATION where TBSP_TYPE=‘DMS‘ and TBSP_AUTO_RESIZE_ENABLED=0" step 1:
db2 -x "select ‘ALTER TABLESPACE ‘|| TBSP_NAME ||‘ AUTORESIZE YES;‘ from SYSIBMADM.TBSP_UTILIZATION where TBSP_TYPE=‘DMS‘ and TBSP_AUTO_RESIZE_ENABLED=0" | tee changeTBSauto.sql step 2:
db2 -tvf changeTBSauto.sql