asked on

Thin/Thick Provisioning

Any expert out there to explain the difference between thin and thick provisionning disk.
If I understand when creating a new VM , a disk size is allocated. for instance if 5GB is allocated what would be the effect of making the disk thin or thick provisionning?

thanks

ASKER CERTIFIED SOLUTION

bgoering

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

jskfan

ASKER

Let me see if I understand what you are saying:

Thin:
if 5GB is allocated , then as long as the files are written to disk , the used space is growing up to 5GB.

a- what about the unused space before the 5GB are used up ? Does that mean if I have written 3GB out of the existing 5GB, then from the 2GB left I can create another Virtual disk?
b- what if the 5GB are used up does it automatically allocate more space?

thanks

SOLUTION

USAF_The_One

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

jskfan

ASKER

OK ....
IF I allocate 5GB THICK, means 5GB is all taken by that VM machine.?
IF I allocate 5GB THIN but only 3 have been used , means the unused space still can be allocated to another VM Machine ?

is that the difference ?

SOLUTION

USAF_The_One

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

jskfan

ASKER

When monitored by Alarms, Thin is helpful in case we cannot make an assumption how much disk size we need for a certain VM.

SOLUTION

USAF_The_One

membership