Bestpractice storage???

[hbarket]

Question bestpractice stockage :

Quel est le pourcentage d'espace à laisser libre sur un LUN?

Quel est le pourcentage d'espace à laisser libre sur une Baie?

Question bestpractice stocking:

What is the percentage of space to be left free on a LUN?

What is the percentage of space to be left free on a Bay (Storage SUN)?

[john23]

Hi,

Its depends on what purpose we are configuring as well what type of luns and disks

-- Thin provision or thick provision

-- Reclaim is possible or not

-- Application type which are planning to run on vm

-A

[vmroyale]

Note: Discussion successfully moved from VMware ESXi 5 to VMware vSphere™ Storage

[hbarket]

John,

Thank you for your repley,

- both thin & thick : but i m planinig to add a new storage with thick provisioning.

==> It is good to know for both configuration separately

- is not possible

- The infrastructure is a lab for développement, contient quite typical  of applications and BDD...

[bayupw · Accepted solution]

Hi, I agree with John.

Most of the time I see people factor in about 30% for free space on each LUN during LUN sizing (15% for snapshot + 15% for free space).

When sizing a LUN for a VMware datastore, you would want to determine first how many active virtual machines to allocate per LUN.

For read/write performance, it does not matter if your VMDK is on a 100GB LUN or 2TB LUN.

It is the total I/O load on the LUN that matters.

If you'd like to design your datastore/LUN, how big should be the LUN, how many VMs per VMFS, etc, you can also use sizing tools created by Samir Roshan here - VMware VMFS Datastore Sizing Calculator: http://thinkingloudoncloud.com/calculator/vmware-vmfs-datastore-sizing-calculator/

Below are some links re: VMware Storage/VMFS best practices

VMware Storage Best Practices: http://www.vmware.com/files/pdf/support/landing_pages/Virtual-Support-Day-Storage-Best-Practices-Jun...

VMFS Best Practices: http://www.vmware.com/pdf/vmfs-best-practices-wp.pdf

Thanks,

Bayu