File System and Array Confusion

munna529 · 04-01-2014, 10:16 AM

Hi Friends,
I have a host(Suse Linux 10.4) which has 2 luns presented from 2 different arrays HP eva and xp. we are planning to migrate hp eva to 3par. When i look for physical volume i see /dev/dm-4, /dev/dm-5, /dev/dm-7and when i look for multipath -ll i see dm-8,dm-9,dm-7. So i can't confirm which physical volumes or filesystem reside on the EVA array as multipath names are not used in same way during the physcial volume creation. Is there anyother way i can find which file system/Physical volume resides on the EVA array ?
Please, Let me know if you need more information.
Please reply. any help is greatly appreciated.

Sample Output:
From Multipath output i can see storage is coming from 2 different arrays:
dm -6 and dm -7 are coming from EVA and the rest from XP array.

Code:

#-> multipath -ll
mpathe (360060e8016008400000100840000443f) dm-10 HP,OPEN-V
[size=16G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 1:0:2:1 sdp        8:240  [active][ready]
 \_ 0:0:1:1 sde        8:64   [active][ready]
mpathd (360060e8016008400000100840000443e) dm-11 HP,OPEN-V
[size=20G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 1:0:2:0 sdo        8:224  [active][ready]
 \_ 0:0:1:0 sdd        8:48   [active][ready]
mpathb (3600508b4000d3f600000600006430000) dm-7 HP,HSV450
[size=40G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 1:0:4:1 sdw        65:96  [active][ready]
 \_ 0:0:4:1 sdt        65:48  [active][ready]
 \_ 1:0:3:1 sds        65:32  [active][ready]
 \_ 0:0:3:1 sdl        8:176  [active][ready]
 \_ 1:0:1:1 sdk        8:160  [active][ready]
 \_ 0:0:2:1 sdh        8:112  [active][ready]
 \_ 1:0:0:1 sdc        8:32   [active][ready]
 \_ 0:0:0:1 sda        8:0    [active][ready]
mpatha (3600508b4000d3f600000600006d30000) dm-6 HP,HSV450
[size=11G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 1:0:4:2 sdx        65:112 [active][ready]
 \_ 0:0:4:2 sdv        65:80  [active][ready]
 \_ 1:0:3:2 sdu        65:64  [active][ready]
 \_ 0:0:3:2 sdn        8:208  [active][ready]
 \_ 1:0:1:2 sdm        8:192  [active][ready]
 \_ 0:0:2:2 sdj        8:144  [active][ready]
 \_ 1:0:0:2 sdi        8:128  [active][ready]
 \_ 0:0:0:2 sdb        8:16   [active][ready]
mpathg (360060e80160084000001008400004441) dm-8 HP,OPEN-V
[size=11G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 1:0:2:3 sdr        65:16  [active][ready]
 \_ 0:0:1:3 sdg        8:96   [active][ready]
mpathf (360060e80160084000001008400004440) dm-9 HP,OPEN-V
[size=5.0G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 1:0:2:2 sdq        65:0   [active][ready]
 \_ 0:0:1:2 sdf        8:80   [active][ready]

[root@itsusmdsapl14:/root]#

Code:

#-> pvs
  PV                VG   Fmt  Attr PSize   PFree
  /dev/cciss/c0d0p3 vg00 lvm2 a-   125.34G   43.09G
  /dev/dm-10        B    lvm2 a-    16.00G    1.00G
  /dev/dm-11        A    lvm2 a-    20.00G   20.00G
  /dev/dm-12        A    lvm2 a-    20.50G   20.50G
  /dev/dm-13        B    lvm2 a-    15.73G   15.73G
  /dev/dm-14        vg01 lvm2 a-     3.76G    1.26G
  /dev/dm-6         vg02 lvm2 a-    11.00G 1020.00M
  /dev/dm-8         vg02 lvm2 a-    11.00G   11.00G
  /dev/dm-9         vg01 lvm2 a-     5.00G    5.00G

[root@itsusmdsapl14:/root]#

Code:

#-> vgs
  VG   #PV #LV #SN Attr   VSize   VFree
  A      2   0   0 wz--n-  40.50G 40.50G
  B      2   1   0 wz--n-  31.73G 16.73G
  vg00   1   6   0 wz--n- 125.34G 43.09G
  vg01   2   2   0 wz--n-   8.76G  6.26G
  vg02   2   1   0 wz--n-  21.99G 11.99G

[root@itsusmdsapl14:/root]#

Code:

#-> lvs
  LV          VG   Attr   LSize   Origin Snap%  Move Log Copy%
  usr-sap-RPU B    -wi-ao  15.00G
  lv00        vg00 -wi-ao  10.00G
  lv01        vg00 -wi-ao   5.00G
  lv02        vg00 -wi-ao  10.00G
  lv03        vg00 -wi-ao   5.00G
  swap        vg00 -wi-ao  50.00G
  swap1       vg00 -wi-ao   2.25G
  sapmnt      vg01 -wi-ao 512.00M
  usr-sap     vg01 -wi-ao   2.00G
  lv00        vg02 -wi-ao  10.00G

[root@itsusmdsapl14:/root]#

Code:

#-> df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg00-lv00
                      9.9G  5.1G  4.4G  54% /
udev                   71G  428K   71G   1% /dev
/dev/cciss/c0d0p1     130M   60M   63M  49% /boot
/dev/mapper/vg00-lv03
                      5.0G  933M  3.8G  20% /home
/dev/mapper/vg00-lv01
                      5.0G  734M  4.0G  16% /tmp
/dev/mapper/vg00-lv02
                      9.9G  2.8G  6.6G  30% /var
/dev/mapper/vg01-sapmnt
                      496M   17M  480M   4% /sapmnt
/dev/mapper/vg01-usr--sap
                      2.0G  489M  1.5G  25% /usr/sap
/dev/mapper/B-usr--sap--RPU
                       15G  5.3G  9.3G  37% /usr/sap/RPU
/dev/mapper/vg02-lv00
                      9.9G  1.1G  8.9G  11% /oracle
ncsusnasmid01:/vol/hcs/sapsw_crossroad
                      2.0T  2.0T   35G  99% /sapsw
mddxrdd2:/export/usr/sap/transRPUDVL
                       90G   68G   21G  77% /usr/sap/transRPUDVL
itsusravmdd02:/vol/itsusravmdd02_hcs/hcs_xroads_audit_ECC
                      100G   76G   25G  76% /xroads/audit/ECC
dbciAPU.jnj.com:/export/data/interface/APUCLNT300
                      150G  3.4G  146G   3% /data/interface/APUCLNT300
dbciBPU.jnj.com:/export/data/interface/BPUCLNT400
                      150G  6.8G  143G   5% /data/interface/BPUCLNT400
ncsusnasent03.na.jnj.com:/vol/its3/its_diq_na_win_prod/PowerCenter/infa_shared/HCSUS_CRD2/Reports
                      200G   26M  199G   1% /data/interface/Conversions/Informatica/outbound
dbciRPU:/export/data/interface/RPUCLNT100
                      891G   76G  765G   9% /data/interface/RPUCLNT100
d59RPU:/export/usr/sap/transRPUPRD
                      203G  124G   75G  63% /usr/sap/transRPUPRD
itsus012:/data/interface/Conversions
                      200G   26M  199G   1% /data/interface/Conversions
dbciRPU.na.jnj.com:/export/sapmnt/RPU
                       24G   11G   13G  47% /sapmnt/RPU
itsusravmdd01:/vol/itsusravmdd01_hcs/hcs_sap_prod
                      500G  1.6G  499G   1% /usr/sap/PRD/BTBDCFILES
itsusravlnx01.jnj.com:/vol/itsusravlnx01_its/linux_images/itsusmdsapl14.jnj.com
                       10T  8.4T  1.7T  84% /tmp/rear.1559/netfs

[root@itsusmdsapl14:/root]#

Code:

#-> more /etc/fstab
/dev/cciss/c0d0p1    /boot                ext3       acl,user_xattr        1 2
/dev/cciss/c0d0p2    swap                 swap       defaults              0 0
/dev/vg00/lv00       /                    ext3       defaults              1 1
/dev/vg00/lv03       /home                ext3       defaults              1 2
/dev/vg00/lv01       /tmp                 ext3       defaults              1 2
/dev/vg00/lv02       /var                 ext3       defaults              1 2
proc                 /proc                proc       defaults              0 0
sysfs                /sys                 sysfs      noauto                0 0
debugfs              /sys/kernel/debug    debugfs    noauto                0 0
usbfs                /proc/bus/usb        usbfs      noauto                0 0
devpts               /dev/pts             devpts     mode=0620,gid=5       0 0
/dev/vg00/swap       swap                 swap       pri=-1                0 0
/dev/vg01/sapmnt     /sapmnt                 ext3       defaults              1 2
/dev/vg01/usr-sap    /usr/sap                 ext3       defaults              1 2
/dev/B/usr-sap-RPU   /usr/sap/RPU                 ext3       defaults              1 2
ncsusnasmid01:/vol/hcs/sapsw_crossroad  /sapsw  nfs rw,hard,bg,intr 0 0
mddxrdd2:/export/usr/sap/transRPUDVL    /usr/sap/transRPUDVL    nfs rw,hard,bg,intr 0 0
dbciRPU:/export/data/interface/RPUCLNT100 /data/interface/RPUCLNT100    nfs rw,hard,bg,intr 0 0
d59RPU:/export/usr/sap/transRPUPRD      /usr/sap/transRPUPRD    nfs rw,hard,bg,intr 0 0
/dev/vg02/lv00       /oracle       ext3       defaults              0 0
/dev/vg00/swap1      swap       swap       pri=-1        0 0
itsusravmdd02:/vol/itsusravmdd02_hcs/hcs_xroads_audit_ECC       /xroads/audit/ECC       nfs   rw,hard,bg,intr  0 0
d59RPU.na.jnj.com:/export/usr/sap/transRPUPRD   /usr/sap/transRPUPRD   nfs rw,bg,hard,intr 0  0
itsus012:/data/interface/Conversions /data/interface/Conversions   nfs   rw,hard,bg,intr  0 0
ncsusnasent03.na.jnj.com:/vol/its3/its_diq_na_win_prod/PowerCenter/infa_shared/HCSUS_CRD2/Reports /data/interface/Conversions/Infor
matica/outbound  nfs   rw,hard,bg,intr  0 0
dbciRPU.na.jnj.com:/export/sapmnt/RPU            /sapmnt/RPU  nfs rw,hard,bg,intr 0 0
dbciAPU.jnj.com:/export/data/interface/APUCLNT300   /data/interface/APUCLNT300  nfs   rw,hard,bg,intr  0 0
dbciBPU.jnj.com:/export/data/interface/BPUCLNT400   /data/interface/BPUCLNT400  nfs   rw,hard,bg,intr  0 0
itsusravmdd01:/vol/itsusravmdd01_hcs/hcs_sap_prod /usr/sap/PRD/BTBDCFILES nfs   rw,hard,bg,intr  0 0

munna529 · 04-01-2014, 10:25 AM

Code:

#-> fdisk -l
Disk /dev/sda: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1       20997    21500912   83  Linux
/dev/sda2           20998       37111    16500736   83  Linux
/dev/sda3           37112       40960     3941376   83  Linux
Disk /dev/sdb: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1       20997    21500912   83  Linux
/dev/sdc2           20998       37111    16500736   83  Linux
/dev/sdc3           37112       40960     3941376   83  Linux
Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes
255 heads, 63 sectors/track, 17844 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
           Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d0p1               1          17      136521   83  Linux
/dev/cciss/c0d0p2              18        1481    11759580   82  Linux swap / Solaris
/dev/cciss/c0d0p3            1482       17844   131435797+  8e  Linux LVM
Disk /dev/sdd: 21.4 GB, 21475491840 bytes
64 heads, 32 sectors/track, 20480 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdd doesn't contain a valid partition table
Disk /dev/sde: 17.1 GB, 17180590080 bytes
64 heads, 32 sectors/track, 16384 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sde doesn't contain a valid partition table
Disk /dev/sdf: 5369 MB, 5369364480 bytes
166 heads, 62 sectors/track, 1018 cylinders
Units = cylinders of 10292 * 512 = 5269504 bytes
Disk /dev/sdf doesn't contain a valid partition table
Disk /dev/sdg: 11.8 GB, 11811225600 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdg doesn't contain a valid partition table
Disk /dev/sdh: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdh1               1       20997    21500912   83  Linux
/dev/sdh2           20998       37111    16500736   83  Linux
/dev/sdh3           37112       40960     3941376   83  Linux
Disk /dev/sdi: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdi doesn't contain a valid partition table
Disk /dev/sdj: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdj doesn't contain a valid partition table
Disk /dev/sdk: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdk1               1       20997    21500912   83  Linux
/dev/sdk2           20998       37111    16500736   83  Linux
/dev/sdk3           37112       40960     3941376   83  Linux
Disk /dev/sdl: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdl1               1       20997    21500912   83  Linux
/dev/sdl2           20998       37111    16500736   83  Linux
/dev/sdl3           37112       40960     3941376   83  Linux
Disk /dev/sdm: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdm doesn't contain a valid partition table
Disk /dev/sdn: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdn doesn't contain a valid partition table
Disk /dev/sdo: 21.4 GB, 21475491840 bytes
64 heads, 32 sectors/track, 20480 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdo doesn't contain a valid partition table
Disk /dev/sdp: 17.1 GB, 17180590080 bytes
64 heads, 32 sectors/track, 16384 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdp doesn't contain a valid partition table
Disk /dev/sdq: 5369 MB, 5369364480 bytes
166 heads, 62 sectors/track, 1018 cylinders
Units = cylinders of 10292 * 512 = 5269504 bytes
Disk /dev/sdq doesn't contain a valid partition table
Disk /dev/sdr: 11.8 GB, 11811225600 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdr doesn't contain a valid partition table
Disk /dev/sds: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sds1               1       20997    21500912   83  Linux
/dev/sds2           20998       37111    16500736   83  Linux
/dev/sds3           37112       40960     3941376   83  Linux
Disk /dev/sdt: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdt1               1       20997    21500912   83  Linux
/dev/sdt2           20998       37111    16500736   83  Linux
/dev/sdt3           37112       40960     3941376   83  Linux
Disk /dev/sdu: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdu doesn't contain a valid partition table
Disk /dev/sdv: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdv doesn't contain a valid partition table
Disk /dev/sdw: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdw1               1       20997    21500912   83  Linux
/dev/sdw2           20998       37111    16500736   83  Linux
/dev/sdw3           37112       40960     3941376   83  Linux
Disk /dev/sdx: 11.8 GB, 11811160064 bytes
64 heads, 32 sectors/track, 11264 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdx doesn't contain a valid partition table
Disk /dev/dm-0: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-0 doesn't contain a valid partition table
Disk /dev/dm-1: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-1 doesn't contain a valid partition table
Disk /dev/dm-2: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-2 doesn't contain a valid partition table
Disk /dev/dm-3: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-3 doesn't contain a valid partition table
Disk /dev/dm-4: 53.6 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-4 doesn't contain a valid partition table
Disk /dev/dm-5: 2415 MB, 2415919104 bytes
255 heads, 63 sectors/track, 293 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-5 doesn't contain a valid partition table
Disk /dev/dm-6: 11.8 GB, 11811160064 bytes
255 heads, 63 sectors/track, 1435 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-6 doesn't contain a valid partition table
Disk /dev/dm-7: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
     Device Boot      Start         End      Blocks   Id  System
/dev/dm-7p1               1       20997    21500912   83  Linux
/dev/dm-7p2           20998       37111    16500736   83  Linux
/dev/dm-7p3           37112       40960     3941376   83  Linux
Disk /dev/dm-8: 11.8 GB, 11811225600 bytes
255 heads, 63 sectors/track, 1435 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-8 doesn't contain a valid partition table
Disk /dev/dm-9: 5369 MB, 5369364480 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-9 doesn't contain a valid partition table
Disk /dev/dm-10: 17.1 GB, 17180590080 bytes
255 heads, 63 sectors/track, 2088 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-10 doesn't contain a valid partition table
Disk /dev/dm-11: 21.4 GB, 21475491840 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-11 doesn't contain a valid partition table
Disk /dev/dm-12: 22.0 GB, 22016933888 bytes
255 heads, 63 sectors/track, 2676 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-12 doesn't contain a valid partition table
Disk /dev/dm-13: 16.8 GB, 16896753664 bytes
255 heads, 63 sectors/track, 2054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-13 doesn't contain a valid partition table
Disk /dev/dm-14: 4035 MB, 4035969024 bytes
255 heads, 63 sectors/track, 490 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-14 doesn't contain a valid partition table
Disk /dev/dm-15: 16.1 GB, 16106127360 bytes
255 heads, 63 sectors/track, 1958 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-15 doesn't contain a valid partition table
Disk /dev/dm-16: 536 MB, 536870912 bytes
255 heads, 63 sectors/track, 65 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-16 doesn't contain a valid partition table
Disk /dev/dm-17: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-17 doesn't contain a valid partition table
Disk /dev/dm-18: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/dm-18 doesn't contain a valid partition table

suicidaleggroll · 04-01-2014, 12:32 PM

Please put your commands and output inside [code] tags to retain the formatting and improve legibility. It's very difficult to read your post with all of the information smashed together as it is.

munna529 · 04-01-2014, 01:02 PM

Hi eggroll,

sorry for redundant post and edited the information with required code format.
Please provide your thoughts on this issue.

Thanks

suicidaleggroll · 04-01-2014, 01:46 PM

The two HSV450 arrays, dm-6 and dm-7, are comprised of 8 disks each, 11.8G each for dm-6, 42.9G each for dm-7 (see your multipath output for a list of the device names)

dm-6 is used in VG vg02, which has one LV, lv00. This LV is mounted at /oracle

dm-7 is split into three partitions, a 20.5G, 15.7G, and 3.75G. My best guess says that these three partitions are then re-named as dm-12, dm-13, and dm-14.
dm-12 is used in VG A, which has no LV and is not mounted anywhere
dm-13 is used in VG B, which has one LV, usr-sap-RPU. This LV is mounted at /usr/sap/RPU
dm-14 is used in VG vg01, which has 2 LVs, sapmnt and usr-sap. These LVs are mounted at /sapmnt and /usr/sap

So, my guess is that your two EVA arrays are ultimately being used in /oracle, /usr/sap/RPU, /sapmnt, and /usr/sap

You should take that analysis with a grain of salt though, as I have very little experience with LVM for exactly this reason.

munna529 · 04-01-2014, 02:03 PM

Thanks alot eggroll it makes sense now and i see from the ouput of fdisk -l i see dm-7 has 3 partitions:

Disk /dev/dm-7: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/dm-7p1 1 20997 21500912 83 Linux
/dev/dm-7p2 20998 37111 16500736 83 Linux
/dev/dm-7p3 37112 40960 3941376 83 Linux

But how did you say these 3 partitions has these figures 20.5G, 15.7G, and 3.75G ? am i missing anything or is it simple math calculation if it is a dumb question please forgive and let me know i am just being confused about this and what to learn more ?

Thanks

munna529 · 04-01-2014, 02:12 PM

But from the PVS o/p: we can see
/dev/dm-10 B lvm2 a- 16.00G 1.00G
/dev/dm-13 B lvm2 a- 15.73G 15.73G

where dm-10 is HP OpenV and dm-13 is HP HSV array respectively

From Vgs output:
B 2 1 0 wz--n- 31.73G 16.73G

From LVS output:
usr-sap-RPU B -wi-ao 15.00G

so as per output i am confused either eva and xp array is being used for /usr/sap/RPU ? how to verify this ?

Thanks

suicidaleggroll · 04-01-2014, 04:33 PM

Quote:

Originally Posted by munna529

Thanks alot eggroll it makes sense now and i see from the ouput of fdisk -l i see dm-7 has 3 partitions:

Disk /dev/dm-7: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/dm-7p1 1 20997 21500912 83 Linux
/dev/dm-7p2 20998 37111 16500736 83 Linux
/dev/dm-7p3 37112 40960 3941376 83 Linux

But how did you say these 3 partitions has these figures 20.5G, 15.7G, and 3.75G ? am i missing anything or is it simple math calculation if it is a dumb question please forgive and let me know i am just being confused about this and what to learn more ?

Thanks

fdisk tells you the number of 1K blocks in each partition.
21500912 = 20.5 GB
16500736 = 15.74 GB
3941376 = 3.76 GB

suicidaleggroll · 04-01-2014, 04:36 PM

Quote:

Originally Posted by munna529

But from the PVS o/p: we can see
/dev/dm-10 B lvm2 a- 16.00G 1.00G
/dev/dm-13 B lvm2 a- 15.73G 15.73G

where dm-10 is HP OpenV and dm-13 is HP HSV array respectively

From Vgs output:
B 2 1 0 wz--n- 31.73G 16.73G

From LVS output:
usr-sap-RPU B -wi-ao 15.00G

so as per output i am confused either eva and xp array is being used for /usr/sap/RPU ? how to verify this ?

Thanks

Yes, only 15 GB of the available 31.73GB in LV B is being used (you can see from your vgs output that there's still 16.73 GB available). As far as which PVs actually contain the data in the usr-sap-RPU LV, I can't say. It's probably spread across both dm-10 and dm-13.

munna529 · 04-01-2014, 04:48 PM

Eggroll thanks alot sir you just cleared most of my doubts on my head. all i can say is "YOU ROCK" your thoughts are really helpful for me. Thanks for your time and views.

munna529 · 04-01-2014, 05:01 PM

I have similar kind of issue on other server can you please provide your thought on this one also it will be very helpful :

in the multipath and pvs you can it is dm-4 but when i look for df -h i see filesystem as dm-5 and dm-6. When i looked in /etc/fstab file i see it was mounted using labels. So not sure whether they created file system directly on disk or is it really under lvm ?
Please provide your thoughts.

Code:

#-> multipath -ll
mpatha (3600508b4000712310000900002be0000) dm-4 HP,HSV210
[size=100G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=1][active]
 \_ 1:0:3:1 sdh        8:112 [active][ready]
 \_ 1:0:2:1 sdg        8:96  [active][ready]
 \_ 1:0:1:1 sdf        8:80  [active][ready]
 \_ 1:0:0:1 sde        8:64  [active][ready]
 \_ 0:0:3:1 sdd        8:48  [active][ready]
 \_ 0:0:2:1 sdc        8:32  [active][ready]
 \_ 0:0:1:1 sdb        8:16  [active][ready]
 \_ 0:0:0:1 sda        8:0   [active][ready]

Code:

#-> pvs
  PV                VG   Fmt  Attr PSize   PFree
  /dev/cciss/c0d0p3 vg00 lvm2 a-   120.69G 90.69G
  /dev/dm-4         vg01 lvm2 a-   100.00G     0
[root@itsusraappsp04:/root]#

Code:

#-> vgs
  VG   #PV #LV #SN Attr   VSize   VFree
  vg00   1   4   0 wz--n- 120.69G 90.69G
  vg01   1   2   0 wz--n- 100.00G     0
[root@itsusraappsp04:/root]#

Code:

#-> lvs
  LV   VG   Attr   LSize  Origin Snap%  Move Log Copy%
  lv00 vg00 -wi-ao 10.00G
  lv01 vg00 -wi-ao  5.00G
  lv02 vg00 -wi-ao 10.00G
  lv03 vg00 -wi-ao  5.00G
  lv00 vg01 -wi-ao 50.00G
  lv01 vg01 -wi-ao 50.00G

Code:

#-> df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg00-lv00
                      9.9G  4.9G  4.5G  53% /
udev                   32G  220K   32G   1% /dev
/dev/cciss/c0d0p1     130M   69M   55M  56% /boot
/dev/mapper/vg00-lv03
                      5.0G  215M  4.5G   5% /home
/dev/mapper/vg00-lv01
                      5.0G  3.2G  1.5G  69% /tmp
/dev/mapper/vg00-lv02
                      9.9G  1.5G  7.9G  16% /var
/dev/dm-5              50G   11G   40G  21% /opt/appsrv
/dev/dm-6              50G   37G   14G  74% /opt/appsrv/log
ncsranaseap09.na.jnj.com:/vol/appsrv/appsrv_naslog
                      400G  381G   20G  96% /opt/appsrv/nas/log
ncsranaseap09.na.jnj.com:/vol/appsrv/prod_nas
                      400G  381G   20G  96% /opt/appsrv/nas
ncsranaseap09.na.jnj.com:/vol/appsrv/etqcpc_training
                      200G  140G   61G  70% /opt/appsrv/nas/npwl021T/etqcpc-training
ncsusnasmid03:/vol/ncsusnasent03_its3/etq_backup
                      100G  1.5G   99G   2% /etq_backup

Code:

#-> more /etc/fstab
/dev/cciss/c0d0p1    /boot                ext3       acl,user_xattr        1 2
/dev/cciss/c0d0p2    swap                 swap       defaults              0 0
/dev/vg00/lv00       /                    ext3       defaults              1 1
/dev/vg00/lv03       /home                ext3       defaults              1 2
/dev/vg00/lv01       /tmp                 ext3       defaults              1 2
/dev/vg00/lv02       /var                 ext3       defaults              1 2
proc                 /proc                proc       defaults              0 0
sysfs                /sys                 sysfs      noauto                0 0
debugfs              /sys/kernel/debug    debugfs    noauto                0 0
usbfs                /proc/bus/usb        usbfs      noauto                0 0
devpts               /dev/pts             devpts     mode=0620,gid=5       0 0
LABEL=OptAppSrv       /opt/appsrv        ext3       defaults              0 0
LABEL=OptAppSrvLog    /opt/appsrv/log    ext3       defaults              0 0
#ncsranaseap09.na.jnj.com:/vol/appsrv/appsrv_nas     /opt/appsrv/nas nfs rw,hard,bg,intr 1 2
ncsranaseap09.na.jnj.com:/vol/appsrv/appsrv_naslog  /opt/appsrv/nas/log nfs rw,hard,bg,intr 1 2
ncsranaseap09.na.jnj.com:/vol/appsrv/prod_nas      /opt/appsrv/nas nfs rw,hard,bg,intr 0 0
ncsusnasmid03:/vol/ncsusnasent03_its3/etq_backup   /etq_backup nfs rw,hard,bg,intr 0 0
ncsranaseap09.na.jnj.com:/vol/appsrv/etqcpc_training  /opt/appsrv/nas/npwl021T/etqcpc-training      nfs rw,hard,bg,intr 0 0
[root@itsusraappsp04:/root]#

Code:

#-> fdisk -l

Disk /dev/sda: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sda doesn't contain a valid partition table

Disk /dev/sdb: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdc: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdc doesn't contain a valid partition table

Disk /dev/sdd: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdd doesn't contain a valid partition table

Disk /dev/sde: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sde doesn't contain a valid partition table

Disk /dev/sdf: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdf doesn't contain a valid partition table

Disk /dev/sdg: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdg doesn't contain a valid partition table

Disk /dev/sdh: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdh doesn't contain a valid partition table

Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes
255 heads, 63 sectors/track, 17844 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

           Device Boot      Start         End      Blocks   Id  System
/dev/cciss/c0d0p1               1          17      136521   83  Linux
/dev/cciss/c0d0p2              18        2089    16643340   82  Linux swap / Solaris
/dev/cciss/c0d0p3            2090       17844   126552037+  8e  Linux LVM

Disk /dev/dm-0: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-0 doesn't contain a valid partition table

Disk /dev/dm-1: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-1 doesn't contain a valid partition table

Disk /dev/dm-2: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-2 doesn't contain a valid partition table

Disk /dev/dm-3: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-3 doesn't contain a valid partition table

Disk /dev/dm-4: 107.3 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-4 doesn't contain a valid partition table

Disk /dev/dm-5: 53.6 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-5 doesn't contain a valid partition table

Disk /dev/dm-6: 53.6 GB, 53682896896 bytes
255 heads, 63 sectors/track, 6526 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-6 doesn't contain a valid partition table
#

Please let me know your thought.

suicidaleggroll · 04-01-2014, 05:26 PM

dm-4 is the sole member of vg01

vg01 has two LVs, lv00 and lv01, both 50 GB

For some reason it's not mounting using lv00 and lv01 though, it's using dm-5 and dm-6. I can only guess that they're equivalent (dm-5 = lv00 and dm-6 = lv01 or vice versa), but I'm afraid I'm not familiar enough with LVM to explain how/why or go into more detail.

This ridiculously complicated and unnecessary abstraction is why I don't use LVM if I can help it.

munna529 · 04-01-2014, 08:44 PM

Thanks alot eggroll for the information. I think regarding the last question i will have to wait until someone provides me some information even i looked online but didn't find any solution.