Solved

Creating more than one datastore from a logical drive

Posted on 2014-04-23
6
2,938 Views
Last Modified: 2014-04-24
Hi,
 
 I have 2TB of disk space available and I would like to create two datastores - 1.5TB and 500GB respectively.
 After creating a datastore with 1.5TB, I tried to create another datastore, but there was no disk available. what happened to 500GB of space? How can I create another datastore with 500GB?
0
Comment
Question by:sglee
  • 3
  • 2
6 Comments
 
LVL 119
ID: 40019100
total disk size 1.89TB

Haven't you created

1. datastore1 - 1.08TB
2. datastore2 - 1.33TB
3. tried to create datastore3

and  hoping to create a datastore3, out of the remaining 500GB ?

is datastore1 on a separate set of spindles e.g. disks than datastore2.

it's then likely to be a partitioning issue....

test this, if you select datastore2 and select properties, and increase, do you see the 500GB to expand into?
0
 

Author Comment

by:sglee
ID: 40019105
In the VMware box, I have four 600GB doing RAID 10, so effective space is about 1.1TB.
It is occupied by SBS2011 VM. I created a datastore1 for 1.1TB and I used all the space available on that RAID 10.
I purchased two 2TB hard drives on RAID 1, so effective space is about 1.9TB.
With this, I was hoping to create two additional datastores:
(1) datastore2 with 1.4TB  and assign it to SBS2011 VM so that I have E drive with 1.5TB inside SBS2011 VM.
(2) datastore3 with 500GB to create additional VMs down the road.
0
 
LVL 119

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 325 total points
ID: 40019115
it's not supported to have more than one VMFS datastore on a disk/LUN.

It cannot be done from the GUI, and you would have to do it manually, using the console and the partition utility called partedUtil

Using the partedUtil command line utility on ESXi and ESX

You will not see any performance benefit by creating multiple datastores on the same disk/LUN.

If you want to split your datastores, this would need to be done at the RAID level, by creating multiple logical dsks, virtual disk, or volume groups. (whatever your server calls them).

There's not really much you can do with just 2 disks, as for RAID, you can only do mirror!

I've got to dash here, it's GMT in the UK.....02.45!

I'll be around tomorrow.
0
Connect further...control easier

With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.

 
LVL 23

Expert Comment

by:bhanukir7
ID: 40019390
As Hancock pointed out, you cannot create multiple data store's on the same disk.

you can rather use the unused space for extending the datastore to occupy the entire disk.

Yes you can use partedutil to create two partitions and then create two datastores but as again pointed out it does not give you any performance benefits.
0
 

Author Comment

by:sglee
ID: 40021769
Thanks for the information.
0
 
LVL 119
ID: 40021943
No problems.
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will show you how to create an ISO CD-ROM/DVD-ROM image (*.iso), and MD5 checksum signature, for use with VMware vSphere Hypervisor 6.5 (ESXi 6.5). It's a good idea to compare checksums, because many installations fail because of a corr…
In this article, I will show you HOW TO: Suppress Configuration Issues and Warnings Alert displayed in Summary status for ESXi 6.5 after enabling SSH or ESXi Shell.
Teach the user how to use configure the vCenter Server storage filters Open vSphere Web Client:  Navigate to vCenter Server Advanced Settings: Add the four vCenter Server storage filters: Review the advanced settings: Modify the values of the four v…
Teach the user how to use vSphere Update Manager to update the VMware Tools and virtual machine hardware version Open vSphere Client: Review manual processes for updating VMware Tools and virtual hardware versions: Create a new baseline group in vSp…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question