How to Find the LUNs Given Filesystems Using vxfs? Let's say you want to know what LUNs are underneath the "filesystem" /dbd_data_06/oracle/oradata. $ df -k /dbd_data_06/oracle/oradata Filesystem kbytes used avail capacity Mounted on /dev/vx/dsk/oracledb/db015 325384900 144609877 177521174 45% /dbd_data_06/oracle/oradata The last column is really the filesystem mount point, not the filesystem name, which is the first column, /dev/vx/dsk/oracledb/db015. So it's db015. Look at LUN map by vxprint -htp. Part of it is: Disk group: oracledb PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE ... pl db015-01 db015 ENABLED ACTIVE 694157824 CONCAT - RW sd CL-FC1-d4-01 db015-01 CL-FC1-d4 0 31137280 0 c6t2d4 ENA sd CL-FC1-d5-01 db015-01 CL-FC1-d5 0 138734080 31137280 c7t3d5 ENA sd CL-FC0-d9-02 db015-01 CL-FC0-d9 104859648 171408384 169871360 c5t1d9 ENA sd CL-FC0-d15-02 db015-01 CL-FC0-d15 104859648 171408384 341279744 c5t1d15 ENA sd CL-FC1-d2-02 db015-01 CL-FC1-d2 104857600 22645760 512688128 c6t2d2 ENA sd CL-FC1-d6-02 db015-01 CL-FC1-d6 117444096 158823936 535333888 c6t2d6 ENA This means under Disk Group oracledb and volume db015, we have these LUNs (i.e. devices): c6t2d4, c7t3d5, c5t1d9, c5t1d15, c6t2d2, and c6t2d6. Their sizes (lengths) are 31137280, 138734080, etc. iostat -xpn 4 shows these are the two active LUNs: r/s w/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device 49.8 262.8 557.4 5442.6 717.9 30.8 2296.5 98.6 100 100 c5t1d9 95.7 0.0 1453.7 0.0 0.0 0.5 0.0 4.9 0 25 c7t3d5 They're both under /dbd_data_06/oracle/oradata. Yong Huang The entire LUN map is shown below. $ vxprint -htp Disk group: backupdb PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE pl bu001-01 bu001 ENABLED ACTIVE 827794944 CONCAT - RW sd CL-FC1-d10-01 bu001-01 CL-FC1-d10 0 266872320 0 c6t2d10 ENA sd CL-FC1-d12-01 bu001-01 CL-FC1-d12 0 276268032 266872320 c6t2d12 ENA sd CL-FC1-d14-01 bu001-01 CL-FC1-d14 0 276268032 543140352 c6t2d14 ENA sd CL-FC1-d10-02 bu001-01 CL-FC1-d10 266872320 8386560 819408384 c6t2d10 ENA Disk group: default PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE pl buyedi-02 buyedi ENABLED ACTIVE 2458880 CONCAT - RW sd CL-FC1-d9-01 buyedi-02 CL-FC1-d9 0 2458880 0 c7t3d9 ENA pl dload-01 dload ENABLED ACTIVE 16389632 CONCAT - RW sd CL-FC1-d9-02 dload-01 CL-FC1-d9 2460672 16389632 0 c7t3d9 ENA pl f0100-01 f0100 ENABLED ACTIVE 32822784 CONCAT - RW sd CL-FC1-d9-03 f0100-01 CL-FC1-d9 18851328 32822784 0 c7t3d9 ENA pl f0109-02 f0109 ENABLED ACTIVE 98383872 CONCAT - RW sd CL-FC1-d9-04 f0109-02 CL-FC1-d9 51674112 12403200 0 c7t3d9 ENA sd CL-FC1-d9-11 f0109-02 CL-FC1-d9 183260160 85980672 12403200 c7t3d9 ENA pl harvest5-01 harvest5 ENABLED ACTIVE 10487808 CONCAT - RW sd CL-FC1-d9-05 harvest5-01 CL-FC1-d9 64078848 10487808 0 c7t3d9 ENA pl ora_home-02 ora_home ENABLED ACTIVE 73468928 CONCAT - RW sd CL-FC1-d9-06 ora_home-02 CL-FC1-d9 107089920 47254016 0 c7t3d9 ENA sd CL-FC1-d9-12 ora_home-02 CL-FC1-d9 74566656 26214912 47254016 c7t3d9 ENA pl pc_ups-01 pc_ups ENABLED ACTIVE 2054144 CONCAT - RW sd CL-FC1-d9-07 pc_ups-01 CL-FC1-d9 154344960 2054144 0 c7t3d9 ENA pl r0100-02 r0100 ENABLED ACTIVE 8164352 CONCAT - RW sd CL-FC1-d9-08 r0100-02 CL-FC1-d9 156400128 8164352 0 c7t3d9 ENA pl u76-01 u76 ENABLED ACTIVE 10488320 CONCAT - RW sd CL-FC1-d9-09 u76-01 CL-FC1-d9 164565504 10488320 0 c7t3d9 ENA pl znt01-02 znt01 ENABLED ACTIVE 8199168 CONCAT - RW sd CL-FC1-d9-10 znt01-02 CL-FC1-d9 175057920 8199168 0 c7t3d9 ENA Disk group: devldb PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE pl system-02 system ENABLED ACTIVE 20975616 CONCAT - RW sd CL-FC0-d8-01 system-02 CL-FC0-d8 0 20975616 0 c4t0d8 ENA pl wtst_gltd03-02 wtst_gltd03 ENABLED ACTIVE 16777728 CONCAT - RW sd CL-FC0-d8-02 wtst_gltd03-02 CL-FC0-d8 20975616 16777728 0 c4t0d8 ENA Disk group: oracledb PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE pl db005-01 db005 ENABLED ACTIVE 639631872 CONCAT - RW sd CL-FC0-d16-01 db005-01 CL-FC0-d16 0 191950848 0 c4t0d16 ENA sd CL-FC0-d13-01 db005-01 CL-FC0-d13 0 209719296 191950848 c5t1d13 ENA sd CL-FC1-d16-02 db005-01 CL-FC1-d16 38306304 237961728 401670144 c6t2d16 ENA pl db014-01 db014 ENABLED ACTIVE 633341440 CONCAT - RW sd CL-FC0-d2-01 db014-01 CL-FC0-d2 0 104859648 0 c4t0d2 ENA sd CL-FC0-d6-03 db014-01 CL-FC0-d6 209719296 63300096 104859648 c4t0d6 ENA sd CL-FC0-d12-02 db014-01 CL-FC0-d12 104859648 104859648 168159744 c4t0d12 ENA sd CL-FC0-d17-01 db014-01 CL-FC0-d17 0 113246208 273019392 c5t1d17 ENA sd CL-FC1-d4-04 db014-01 CL-FC1-d4 31137280 73720320 386265600 c6t2d4 ENA sd CL-FC1-d3-01 db014-01 CL-FC1-d3 0 104857600 459985920 c7t3d3 ENA sd CL-FC1-d7-04 db014-01 CL-FC1-d7 148902912 68497920 564843520 c7t3d7 ENA pl db015-01 db015 ENABLED ACTIVE 694157824 CONCAT - RW sd CL-FC1-d4-01 db015-01 CL-FC1-d4 0 31137280 0 c6t2d4 ENA sd CL-FC1-d5-01 db015-01 CL-FC1-d5 0 138734080 31137280 c7t3d5 ENA sd CL-FC0-d9-02 db015-01 CL-FC0-d9 104859648 171408384 169871360 c5t1d9 ENA sd CL-FC0-d15-02 db015-01 CL-FC0-d15 104859648 171408384 341279744 c5t1d15 ENA sd CL-FC1-d2-02 db015-01 CL-FC1-d2 104857600 22645760 512688128 c6t2d2 ENA sd CL-FC1-d6-02 db015-01 CL-FC1-d6 117444096 158823936 535333888 c6t2d6 ENA pl oracle01-01 oracle01 ENABLED ACTIVE 138414080 CONCAT - RW sd CL-FC0-d2-05 oracle01-01 CL-FC0-d2 268586496 6921216 0 c4t0d2 ENA sd CL-FC0-d12-05 oracle01-01 CL-FC0-d12 266489856 9778176 6921216 c4t0d12 ENA sd CL-FC0-d7-03 oracle01-01 CL-FC0-d7 209719296 16855040 16699392 c5t1d7 ENA sd CL-FC0-d7-04 oracle01-01 CL-FC0-d7 226575360 49692672 33554432 c5t1d7 ENA sd CL-FC0-d12-03 oracle01-01 CL-FC0-d12 209719296 55166976 83247104 c4t0d12 ENA pl oracle02-01 oracle02 ENABLED ACTIVE 220203008 CONCAT - RW sd CL-FC1-d11-01 oracle02-01 CL-FC1-d11 0 104859648 0 c7t3d11 ENA sd CL-FC1-d2-01 oracle02-01 CL-FC1-d2 0 104857600 104859648 c6t2d2 ENA sd CL-FC1-d2-03 oracle02-01 CL-FC1-d2 127503360 10485760 209717248 c6t2d2 ENA pl oracle03-01 oracle03 ENABLED ACTIVE 20971520 CONCAT - RW sd CL-FC1-d4-02 oracle03-01 CL-FC1-d4 104857600 20971520 0 c6t2d4 ENA pl oracle04-01 oracle04 ENABLED ACTIVE 209719296 CONCAT - RW sd CL-FC1-d11-02 oracle04-01 CL-FC1-d11 104859648 104859648 0 c7t3d11 ENA sd CL-FC0-d15-01 oracle04-01 CL-FC0-d15 0 104859648 104859648 c5t1d15 ENA pl oracle05-01 oracle05 ENABLED ACTIVE 1143373824 CONCAT - RW sd CL-FC1-d11-03 oracle05-01 CL-FC1-d11 209719296 66548736 0 c7t3d11 ENA sd CL-FC1-d13-01 oracle05-01 CL-FC1-d13 0 276268032 66548736 c7t3d13 ENA sd CL-FC1-d15-01 oracle05-01 CL-FC1-d15 0 276268032 342816768 c7t3d15 ENA sd CL-FC1-d8-01 oracle05-01 CL-FC1-d8 0 209714688 619084800 c6t2d8 ENA sd CL-FC0-d4-02 oracle05-01 CL-FC0-d4 142608384 133659648 828799488 c4t0d4 ENA sd CL-FC0-d7-02 oracle05-01 CL-FC0-d7 104859648 63470592 962459136 c5t1d7 ENA sd CL-FC1-d6-01 oracle05-01 CL-FC1-d6 0 117444096 1025929728 c6t2d6 ENA pl oracle06-01 oracle06 ENABLED ACTIVE 945551616 CONCAT - RW sd CL-FC0-d2-06 oracle06-01 CL-FC0-d2 275507712 760320 0 c4t0d2 ENA sd CL-FC0-d6-06 oracle06-01 CL-FC0-d6 80105472 7266816 760320 c4t0d6 ENA sd CL-FC0-d2-04 oracle06-01 CL-FC0-d2 258513408 1534464 8027136 c4t0d2 ENA sd CL-FC0-d6-01 oracle06-01 CL-FC0-d6 0 1534464 9561600 c4t0d6 ENA sd CL-FC1-d4-03 oracle06-01 CL-FC1-d4 125829120 12904960 11096064 c6t2d4 ENA sd CL-FC1-d8-02 oracle06-01 CL-FC1-d8 209714688 66553344 24001024 c6t2d8 ENA sd CL-FC1-d3-02 oracle06-01 CL-FC1-d3 104857600 33876480 90554368 c7t3d3 ENA sd CL-FC1-d7-02 oracle06-01 CL-FC1-d7 217400832 58867200 124430848 c7t3d7 ENA sd CL-FC1-d17-01 oracle06-01 CL-FC1-d17 0 276268032 183298048 c7t3d17 ENA sd CL-FC1-d19-01 oracle06-01 CL-FC1-d19 0 276268032 459566080 c7t3d19 ENA sd CL-FC1-d7-01 oracle06-01 CL-FC1-d7 0 104859648 735834112 c7t3d7 ENA sd CL-FC0-d2-07 oracle06-01 CL-FC0-d2 260997120 7589376 840693760 c4t0d2 ENA sd CL-FC0-d7-05 oracle06-01 CL-FC0-d7 168330240 27901440 848283136 c5t1d7 ENA sd CL-FC1-d0-01 oracle06-01 CL-FC1-d0 0 69367040 876184576 c6t2d0 ENA pl oracle07-01 oracle07 ENABLED ACTIVE 138134016 CONCAT - RW sd CL-FC0-d0-01 oracle07-01 CL-FC0-d0 0 138134016 0 c4t0d0 ENA pl oracle08-01 oracle08 ENABLED ACTIVE 44043264 CONCAT - RW sd CL-FC1-d7-03 oracle08-01 CL-FC1-d7 104859648 44043264 0 c7t3d7 ENA pl oracle09-01 oracle09 ENABLED ACTIVE 314574336 CONCAT - RW sd CL-FC1-d16-01 oracle09-01 CL-FC1-d16 0 38306304 0 c6t2d16 ENA sd CL-FC1-d18-01 oracle09-01 CL-FC1-d18 0 276268032 38306304 c6t2d18 ENA pl oracle10-01 oracle10 ENABLED ACTIVE 713041920 STRIPE 5/128 RW sd CL-FC0-d4-01 oracle10-01 CL-FC0-d4 0 142608384 0/0 c4t0d4 ENA sd CL-FC0-d10-01 oracle10-01 CL-FC0-d10 0 142608384 1/0 c4t0d10 ENA sd CL-FC0-d3-01 oracle10-01 CL-FC0-d3 0 142608384 2/0 c5t1d3 ENA sd CL-FC0-d5-01 oracle10-01 CL-FC0-d5 0 142608384 3/0 c5t1d5 ENA sd CL-FC0-d11-01 oracle10-01 CL-FC0-d11 0 142608384 4/0 c5t1d11 ENA pl oracle11-01 oracle11 ENABLED ACTIVE 713032704 CONCAT - RW sd CL-FC0-d10-02 oracle11-01 CL-FC0-d10 142608384 133659648 0 c4t0d10 ENA sd CL-FC0-d16-02 oracle11-01 CL-FC0-d16 191950848 84317184 133659648 c4t0d16 ENA sd CL-FC0-d3-02 oracle11-01 CL-FC0-d3 142608384 133659648 217976832 c5t1d3 ENA sd CL-FC0-d5-02 oracle11-01 CL-FC0-d5 142608384 133659648 351636480 c5t1d5 ENA sd CL-FC0-d11-02 oracle11-01 CL-FC0-d11 142608384 133659648 485296128 c5t1d11 ENA sd CL-FC0-d13-02 oracle11-01 CL-FC0-d13 209719296 66548736 618955776 c5t1d13 ENA sd CL-FC0-d17-02 oracle11-01 CL-FC0-d17 225372672 27528192 685504512 c5t1d17 ENA pl oracle12-01 oracle12 ENABLED ACTIVE 681578496 CONCAT - RW sd CL-FC0-d2-02 oracle12-01 CL-FC0-d2 104859648 153653760 0 c4t0d2 ENA sd CL-FC0-d6-02 oracle12-01 CL-FC0-d6 1534464 78571008 153653760 c4t0d6 ENA sd CL-FC0-d6-04 oracle12-01 CL-FC0-d6 87372288 122347008 232224768 c4t0d6 ENA sd CL-FC0-d12-01 oracle12-01 CL-FC0-d12 0 104859648 354571776 c4t0d12 ENA sd CL-FC0-d7-01 oracle12-01 CL-FC0-d7 0 104859648 459431424 c5t1d7 ENA sd CL-FC0-d17-03 oracle12-01 CL-FC0-d17 113246208 112126464 564291072 c5t1d17 ENA sd CL-FC0-d17-04 oracle12-01 CL-FC0-d17 252900864 5160960 676417536 c5t1d17 ENA pl oracle13-01 oracle13 ENABLED ACTIVE 157289472 CONCAT - RW sd CL-FC0-d2-03 oracle13-01 CL-FC0-d2 260047872 949248 0 c4t0d2 ENA sd CL-FC0-d1-01 oracle13-01 CL-FC0-d1 0 138134016 949248 c5t1d1 ENA sd CL-FC0-d17-05 oracle13-01 CL-FC0-d17 258061824 18206208 139083264 c5t1d17 ENA pl oracle14-01 oracle14 ENABLED ACTIVE 33555200 CONCAT - RW sd CL-FC1-d1-01 oracle14-01 CL-FC1-d1 0 33555200 0 c7t3d1 ENA pl oracle15-01 oracle15 ENABLED ACTIVE 27264000 CONCAT - RW sd CL-FC1-d1-02 oracle15-01 CL-FC1-d1 33555200 27264000 0 c7t3d1 ENA Disk group: proddb PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE pl aab200-01 aab200 ENABLED ACTIVE 16777728 CONCAT - RW sd CL-FC0-d14-01 aab200-01 CL-FC0-d14 0 16777728 0 c4t0d14 ENA pl ecs01-02 ecs01 ENABLED ACTIVE 14487552 CONCAT - RW sd CL-FC0-d14-03 ecs01-02 CL-FC0-d14 56627712 14487552 0 c4t0d14 ENA pl e0101-02 e0101 ENABLED ACTIVE 39849984 CONCAT - RW sd CL-FC0-d14-02 e0101-02 CL-FC0-d14 16777728 39849984 0 c4t0d14 ENA pl ora_arch-01 ora_arch ENABLED ACTIVE 40960512 CONCAT - RW sd CL-FC0-d14-04 ora_arch-01 CL-FC0-d14 71115264 40960512 0 c4t0d14 ENA pl ora_logs-02 ora_logs ENABLED ACTIVE 16777728 CONCAT - RW sd CL-FC0-d14-06 ora_logs-02 CL-FC0-d14 183144960 16777728 0 c4t0d14 ENA pl oracle_app-02 oracle_app ENABLED ACTIVE 71069184 CONCAT - RW sd CL-FC0-d14-05 oracle_app-02 CL-FC0-d14 112075776 71069184 0 c4t0d14 ENA pl r0200-02 r0200 ENABLED ACTIVE 4197888 CONCAT - RW sd CL-FC0-d14-07 r0200-02 CL-FC0-d14 199922688 4197888 0 c4t0d14 ENA pl trace-02 trace ENABLED ACTIVE 7999488 CONCAT - RW sd CL-FC0-d14-08 trace-02 CL-FC0-d14 204120576 7999488 0 c4t0d14 ENA