File System Operations

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CREATE A FILE SYSTEM:

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Check the disks and DG:
======================

[root@server1 ~]# vxdisk -o alldgs list
DEVICE       TYPE            DISK         GROUP        STATUS
emc0_dd1     auto:cdsdisk    dga01        dga          online
emc0_dd2     auto:cdsdisk    -            -            online
emc0_dd3     auto:cdsdisk    -            -            online
emc0_dd4     auto:none       -            -            online invalid
emc0_dd5     auto:none       -            -            online invalid
emc0_dd6     auto:none       -            -            online invalid
emc0_dd7     auto:none       -            -            online invalid
emc0_dd8     auto:none       -            -            online invalid
emc0_dd9     auto:none       -            -            online invalid
emc0_d10     auto:none       -            -            online invalid
emc0_d11     auto:none       -            -            online invalid
emc0_d12     auto:none       -            -            online invalid
sda          auto:none       -            -            online invalid
sdb          auto:none       -            -            online invalid

[root@server1 ~]#  vxprint -g dga -htu h
DG NAME         NCONFIG      NLOG     MINORS   GROUP-ID
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

dg dga          default      default  0        1422359166.56.sym1

dm dga01        emc0_dd1     auto     32.00m   1.96g    -

[root@server1 ~]#

Create a Volume:
================

[root@server1 ~]# vxassist -g dga make appvol 1g
[root@server1 ~]#
[root@server1 ~]#
[root@server1 ~]# // volume created
[root@server1 ~]#
[root@server1 ~]#

Check whether volume has been created:
=====================================

[root@server1 ~]#  vxprint -g dga -htu h
DG NAME         NCONFIG      NLOG     MINORS   GROUP-ID
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

dg dga          default      default  0        1422359166.56.sym1

dm dga01        emc0_dd1     auto     32.00m   1.96g    -

v  appvol       -            ENABLED  ACTIVE   1.00g    SELECT    -        fsgen
pl appvol-01    appvol       ENABLED  ACTIVE   1.00g    CONCAT    -        RW
sd dga01-01     appvol-01    dga01    0.00     1.00g    0.00      emc0_dd1 ENA

Create a file system:
====================

[root@server1 ~]# mkfs -t vxfs /dev/vx/rdsk/dga/appvol
    version 9 layout
    2097152 sectors, 1048576 blocks of size 1024, log size 16384 blocks
    rcq size 1024 blocks
    largefiles supported

Mount the file system:
======================

[root@server1 ~]# mkdir /app
[root@server1 ~]#
[root@server1 ~]# mount -t vxfs /dev/vx/dsk/dga/appvol /app
[root@server1 ~]#
[root@server1 ~]#
[root@server1 ~]# df -k | egrep -i app
/dev/vx/dsk/dga/appvol
                       1048576     18773    965448   2% /app

In case of linux OS, make an entry in /etc/fstab as mentioned below:
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Entry to be made:-
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/dev/vx/dsk/dga/appvol  /app                    vxfs    rw,largefiles,delaylog 0 2

Verify the entry:
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[root@server1 ~]# cat /etc/fstab | egrep -i app
/dev/vx/dsk/dga/appvol  /app                    vxfs    rw,largefiles,delaylog 0 2

[root@server1 ~]# umount /app
[root@server1 ~]#
[root@server1 ~]# df -k | egrep -i app
[root@server1 ~]#
[root@server1 ~]# mount -a
[root@server1 ~]#
[root@server1 ~]#
[root@server1 ~]# df -k | egrep -i app
/dev/vx/dsk/dga/appvol
                       1048576     18773    965448   2% /app
[root@server1 ~]#
[root@server1 ~]#
[root@server1 ~]# mount | grep app
/dev/vx/dsk/dga/appvol on /app type vxfs (rw,delaylog,largefiles,ioerror=mwdisable)
[root@server1 ~]#
[root@server1 ~]#