Extending Concat Volume in Veritas Volume Manager

File System Size before FS Extension:

#bdf /test_mnt

Filesystem          kbytes    used   avail %used Mounted on

/dev/vx/dsk/testdg/testvol

                   4159488   17768 4109376    0% /test_mnt

Checking the Layout of the volume:

#vxprint -g testdg -htrL testvol

ST NAME         STATE        DM_CNT   SPARE_CNT         APPVOL_CNT

DM NAME         DEVICE       TYPE     PRIVLEN  PUBLEN   STATE

RV NAME         RLINK_CNT    KSTATE   STATE    PRIMARY  DATAVOLS  SRL

RL NAME         RVG          KSTATE   STATE    REM_HOST REM_DG    REM_RLNK

CO NAME         CACHEVOL     KSTATE   STATE

VT NAME         RVG          KSTATE   STATE    NVOLUME

V  NAME         RVG/VSET/CO  KSTATE   STATE    LENGTH   READPOL   PREFPLEX UTYPE

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

SC NAME         PLEX         CACHE    DISKOFFS LENGTH   [COL/]OFF DEVICE   MODE

DC NAME         PARENTVOL    LOGVOL

SP NAME         SNAPVOL      DCO

EX NAME         ASSOC        VC                       PERMS    MODE     STATE

SR NAME         KSTATE

dm testdg01_4g  apevmx11_0398 auto    32768    4160384  -

v  testvol      -            ENABLED  ACTIVE   4159488  SELECT    -        fsgen

pl testvol-01   testvol      ENABLED  ACTIVE   4159488  CONCAT    -        RW

sd testdg01_4g-01 testvol-01 testdg01_4g 0     4159488  0         apevmx11_0398 ENA

The Above Volume is Simple Concatenated:

Extending the volume by: 4G

Initializing a disk:

# vxdisksetup -i apevmx11_070c

Adding the disk to the diskgroup:

# vxdg -g testdg adddisk testdg02_4g=apevmx11_070c

Checking the free space available with the given disk:

#vxassist -g testdg maxgrow testvol alloc=testdg02_4g

Volume testvol can be extended by 4156416 to: 8315904 (8121Mb)

The above output says that the volume could be max extended by 4156416s, and after increase of this volume by 4156416s, the final size would be 8121Mb or 8315904s

Resizing the Volume:

# /etc/vx/bin/vxresize -g testdg -F vxfs testvol +4156416s alloc=testdg02_4g

Checking the Layout of the volume:

#vxprint -g testdg -htrL testvol

ST NAME         STATE        DM_CNT   SPARE_CNT         APPVOL_CNT

DM NAME         DEVICE       TYPE     PRIVLEN  PUBLEN   STATE

RV NAME         RLINK_CNT    KSTATE   STATE    PRIMARY  DATAVOLS  SRL

RL NAME         RVG          KSTATE   STATE    REM_HOST REM_DG    REM_RLNK

CO NAME         CACHEVOL     KSTATE   STATE

VT NAME         RVG          KSTATE   STATE    NVOLUME

V  NAME         RVG/VSET/CO  KSTATE   STATE    LENGTH   READPOL   PREFPLEX UTYPE

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

SC NAME         PLEX         CACHE    DISKOFFS LENGTH   [COL/]OFF DEVICE   MODE

DC NAME         PARENTVOL    LOGVOL

SP NAME         SNAPVOL      DCO

EX NAME         ASSOC        VC                       PERMS    MODE     STATE

SR NAME         KSTATE

dm testdg01_4g  apevmx11_0398 auto    32768    4160384  -

dm testdg02_4g  apevmx11_070c auto    32768    4157312  -

v  testvol      -            ENABLED  ACTIVE   8315904  SELECT    -        fsgen

pl testvol-01   testvol      ENABLED  ACTIVE   8315904  CONCAT    -        RW

sd testdg01_4g-01 testvol-01 testdg01_4g 0     4159488  0         apevmx11_0398 ENA

sd testdg02_4g-01 testvol-01 testdg02_4g 0     4156416  4159488   apevmx11_070c ENA

File System Size after FS Increase

#bdf /test_mnt

Filesystem          kbytes    used   avail %used Mounted on

/dev/vx/dsk/testdg/testvol

                   8315904   17896 8233192    0% /test_mnt