Reset Search
 

 

Article

KB44344 - New LVM feature in Pulse One 2.0.1904 where hard disk space of Pulse One 2.0.1904 VM hosted by VMWare ESX server can be expanded as needed

« Go Back

Information

 
Last Modified Date2/26/2020 12:34 AM
Synopsis
Guidance and procedure for a new LVM feature in Pulse One 2.0.1904 VM where VMWare ESX server allocated space can be expanded as needed.
Problem or Goal
Cause
Solution
The following information describes the new LVM feature available starting from Pulse One 2.0.1904 software version where a Pulse One VM disk allocation can be expanded using VMWare vSphere. This is useful when after deploying and using Pulse One, space must be expanded, as an example, due to increased logging requirements.

Below are more information about this feature.

Prerequisites:
  • Access to vSphere 
  • vSphere (ESX server) has sufficient storage available
Important Caveats:
  • This requires vSphere access as the hard disks need to be added to the VM prior to them appearing in the "system storage add" command (see attached below). The user should have access to a storage array and the ability to edit/add hard disks to the VM
  • Data is not preserved through hard disk expansion. Admin should run "system backup export" before "system storage add" and then run "system backup import" afterwards (as mentioned in the Command Reference Guide p. 119)
  • If the hard disk was expanded but the system hasn't been upgraded, the expanded hard disk will re-appear in the "system storage add" command after the "system destroy system-config" command is run (e.g. the hard disk will be reverted to its original state if the system hasn't been upgraded).
  • A hard disk expansion done prior to upgrade cannot be undone after the system is upgraded
There are only two commands related to this feature:
  • system storage add
    • This command takes no arguments
    • If there are any, it will show you the hard disk partitions which can be used for expansion. There will be a default selection in brackets. If the user hits enter, it will use the default selection, otherwise the user can type in the specific partition they wish to add
    • The output of the command is shown in the Command Reference Guide on p.119-120
  • system storage show
    • This command takes no arguments
    • This command shows the current file system usage of the Pulse One system. The "Data Storage" partition is the only partition affected by hard disk expansion
    • The output of the command is shown in the Command Reference Guide on p.121

Step-by-step procedure to expand Pulse One:

The procedure for expanding Pulse One disk space comprises two steps:
  1. Upgrade ESX server VM image space via vSphere
  2. Run the Pulse One CLI "system storage add" command to expand the disk space


Upgrade of ESX server Pulse One VM image via vSphere:

Step#1 - Edit the VM by going to Properties > Hardware, the click on "Add" button


Step 1 Adding Disk

Step#2 - Select "Hard Disk" from the type of device to add and click "Next"

Step 2 Adding Disk

Step#3 - Select "Create a new virtual disk" and hit "Next"

Step 3 Adding Disk

Step4 - Select the "Disk Size"  needed, the size must be evaluated separately (default is 8 and should be adjusted according to the space availability in the ESX server and new Pulse One requirement)

Step 4 Adding Disk

Step5 - Select appropriate "Virtual Device Node"   and click "Next"

Step 5 Adding Diske

Step6 - Select "Finish"

Step 6 Adding Disk

Step7 - The hard drive will now be added at this time with status (adding), click "OK" when done

Step 7 Adding Disk

Expand the disk space via Pulse One CLI command "system storage add".

Step1-  Check the current space allocation and available space

Pulse One > system storage show 
Example output:
Volumes Filesystem Size Used Available Use% Mounted on
System /dev/md1 1.9G 265.8M 1.6G 14% /
Applications /dev/md2 39.2G 4.9G 32.3G 13% /app
Data Storage /dev/vg0/data 906.7G 408.4M 860.3G 0% /data
data-store 405.71M
file-store 2.54G
index 1007.8M
log-collector 1.03M
log-indexer 695.55M
tmp 52B


Step2: Add the disk storage by selecting appropriate added disk as in VM expansion via VMWare vSphere process above

Pulse One > system storage add
Example output:
Disk Size
-------------------
/dev/sdc 4.00 GiB
/dev/sdd 5.00 GiB
/dev/sde 3.00 GiB
Type name of disk you would like to add [/dev/sdc]: /dev/sde
Expanding storage with selected disk /dev/sde...
Storage expanded.
You may restart services with `services restart`.


Step3: Restart services and execute Step1 to verify new total sizes
 
Related Links
Attachment 1 
Created ByFelipe Acusa

Feedback

 

Was this article helpful?


   

Feedback

Please tell us how we can make this article more useful.

Characters Remaining: 255