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 Extend HardDisks/Partitions on the vIDM Appliance

Our vIDM appliance is now at 3.3.4, was updated several times and still has the disk layout from the initial 3.3.2 installation:

rwk1982_1-1622553423963.png

The pre check to 3.3.5 now fails complaining: Disk space on /opt/vmware/horizon should be at least 7 GB for upgrade bundle upload. Current available space on /opt/vmware/horizon is 2 GB in node. So i decided to extend the disks and partitions to match the 3.3.5 vIDM disk settings:

rwk1982_2-1622555689247.png

The steps are quite simple and can be done online:

Extend Hard disk 1 to 60GB and Hard disk 2 and 3 to 20GB in vCenter (Hard disk 4 can be ignored)

rwk1982_0-1622556788397.png

After that is a good time to take a snapshot of the VM.

Login as "root" to your appliance let linux rescan for the disk changes:

 

echo 1 > /sys/class/block/sda/device/rescan
echo 1 > /sys/class/block/sdb/device/rescan
echo 1 > /sys/class/block/sdc/device/rescan

 

Check if the new disk sizes are recognized with dmesg:

 

dmesg -T | grep "detected capacity change"

 

Now you can extend the root partition with:

 

cfdisk /dev/sda

 

Select /dev/sda4, [ Resize ], type 12G (12G are used in the 3.3.5 appliance), than [ Write ] and finally type "yes" and quit cfdisk




rwk1982_1-1622558473434.png

Now you must resize the file system with "resize2fs" to use the new space:

 

[before resize2fs]
df -h | grep "sda4"
/dev/sda4 8.8G 3.9G 4.5G 47% /

[run resize2fs]
resize2fs /dev/sda4

[after resize2fs]
df -h | grep "sda4"
/dev/sda4 12G 3.9G 7.3G 35% /

 

 

Next is to resize the two data partitions which are LVMs and the steps are different in this case:

Use "pvresize" to let LVM know that the physical disk size has changed:

 

[before pvresize]
pvdisplay /dev/sdc /dev/sdb
  --- Physical volume ---
  PV Name               /dev/sdc
  VG Name               tomcat_vg
  PV Size               10.00 GiB / not usable 4.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              2559
  Free PE               0
  Allocated PE          2559
  PV UUID               546IZ8-0PYE-AAKg-f2WP-VGeG-L9ep-OTasC3

  --- Physical volume ---
  PV Name               /dev/sdb
  VG Name               db_vg
  PV Size               10.00 GiB / not usable 4.00 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              2559
  Free PE               0
  Allocated PE          2559
  PV UUID               ue30Dt-bPWI-JlYG-DktR-5mGT-AZ66-4KEK03

[run pvresize]
pvresize /dev/sdb /dev/sdc

[after pvresize]
pvdisplay /dev/sdc /dev/sdb
  --- Physical volume ---
  PV Name               /dev/sdc
  VG Name               tomcat_vg
  PV Size               <20.00 GiB / not usable 0
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              5119
  Free PE               2560
  Allocated PE          2559
  PV UUID               546IZ8-0PYE-AAKg-f2WP-VGeG-L9ep-OTasC3

  --- Physical volume ---
  PV Name               /dev/sdb
  VG Name               db_vg
  PV Size               <20.00 GiB / not usable 0
  Allocatable           yes
  PE Size               4.00 MiB
  Total PE              5119
  Free PE               2560
  Allocated PE          2559
  PV UUID               ue30Dt-bPWI-JlYG-DktR-5mGT-AZ66-4KEK03

 

 

Next step is to extend the logical volumes with "lvextend" to use the new space:

 

[before lvextend]
lvdisplay /dev/tomcat_vg/horizon /dev/db_vg/db
  --- Logical volume ---
  LV Path                /dev/tomcat_vg/horizon
  LV Name                horizon
  VG Name                tomcat_vg
  LV UUID                gw2MpR-PZgs-ehmA-Ebpc-vg52-97Nd-9t5YVW
  LV Write Access        read/write
  LV Creation host, time sc-a01-049-209, 2019-09-12 15:55:24 +0000
  LV Status              available
  # open                 1
  LV Size                <10.00 GiB
  Current LE             2559
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:1

  --- Logical volume ---
  LV Path                /dev/db_vg/db
  LV Name                db
  VG Name                db_vg
  LV UUID                WzGOjU-z4Qw-FI0u-aOVO-AWlB-AO1O-2fwSkN
  LV Write Access        read/write
  LV Creation host, time sc-a01-049-209, 2019-09-12 15:55:23 +0000
  LV Status              available
  # open                 1
  LV Size                <10.00 GiB
  Current LE             2559
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:0

[run lvextend]
lvextend -l +100%FREE /dev/tomcat_vg/horizon
lvextend -l +100%FREE /dev/db_vg/db

[after lvextend]
lvdisplay /dev/tomcat_vg/horizon /dev/db_vg/db
  --- Logical volume ---
  LV Path                /dev/tomcat_vg/horizon
  LV Name                horizon
  VG Name                tomcat_vg
  LV UUID                gw2MpR-PZgs-ehmA-Ebpc-vg52-97Nd-9t5YVW
  LV Write Access        read/write
  LV Creation host, time sc-a01-049-209, 2019-09-12 15:55:24 +0000
  LV Status              available
  # open                 1
  LV Size                <20.00 GiB
  Current LE             5119
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:1

  --- Logical volume ---
  LV Path                /dev/db_vg/db
  LV Name                db
  VG Name                db_vg
  LV UUID                WzGOjU-z4Qw-FI0u-aOVO-AWlB-AO1O-2fwSkN
  LV Write Access        read/write
  LV Creation host, time sc-a01-049-209, 2019-09-12 15:55:23 +0000
  LV Status              available
  # open                 1
  LV Size                <20.00 GiB
  Current LE             5119
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:0

 

 

And finally use "resize2fs" to extend the file system on the two LVs:

 

[before resize2fs]
df -h | grep "mapper"
/dev/mapper/db_vg-db           9.8G 1014M  8.3G  11% /db
/dev/mapper/tomcat_vg-horizon  9.8G  7.1G  2.2G  78% /opt/vmware/horizon

[run resize2fs]
resize2fs /dev/tomcat_vg/horizon
resize2fs /dev/db_vg/db

[after resize2fs]
df -h | grep "mapper"
/dev/mapper/db_vg-db            20G 1019M   18G   6% /db
/dev/mapper/tomcat_vg-horizon   20G  7.2G   12G  39% /opt/vmware/horizon

 

 

That's all... and I think not supported from VMware

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