Raid 10 expansion on Esxi

Hi,

I have a Esxi 5.x server with Raid 10 on it. Its running out of space so i ordered a set of 4 new drives. I want to expand my current storage. Can someone give me a step by step instruction on how to do it?

Thanks.
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NishantAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I'm afraid it's not done in ESXi. (unless the storage controller vendor has additional software installed/added to the ESXi installation).

You will need to use the Storage Array Controller utilities to complete this operation.

What is the server ?

Most have a BIOS Menu, available at POST, so you will need to shutdown and restart your ESXi server.
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NishantAuthor Commented:
Thank u admin
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
So what is the server ?

what is the storage controller ?

You server and/or storage controller may not support RAID array expansion.
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NishantAuthor Commented:
Its an HP ML350 G6 Server with HP Smart Array P410 Controller.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Okay, you will need to use the Smart Array Utilities which is on the Smart Start DVD.

Please note, you will only be able to Expand the RAID Array, and then the logical disk, using the additional 4 disks, if you have a Battery Backup Write Cache battery attached to the Smart Array controller.

Also please note this is a very disk intensive operation, to add in another 4 disks, please ensure you have a backup of your VMs, because this stress of rebuilding all the array can cause disks to fail.

Also note, performance whilst rebuilding is poor....

You may want to consider adding these additional four disks, and creating a array and logical disk, and then create new second datastore...

So in Summary....

either

1. Expand current array and logical drive (two operations), to add the 4 additional disks, and then in ESXi, Increase the datastore size, to do this, select the VMFS partition, and select Increase, and follow the wizard.

OR

2. Create a new 4 disk RAID 10 array, and logical disk, Add Storage in ESXi, and create datastore2.
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NishantAuthor Commented:
Do i need to turn the machine off while i am doing this? Or is there a way or a GUI that i can use while my VM's are powered on?


And I have a Battery Backup Write Cache battery attached to the Smart Array controller.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You need to start this from the ACU, so you will have to power down VMs. (you may find this easier than the command line method!)

I would strongly advise to ensure you have a full backup before changing any array configuration.

If you have the correct version of ESXi 5.x, e.g. the HP OEM version and correct modules installed, this could be done from the command line.

see here

http://www.virtualtothecore.com/en/manage-an-hp-smart-array-directly-from-vmware-esxi/

http://www.v-front.de/2012/03/how-to-run-hp-online-acu-cli-for-linux.html
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NishantAuthor Commented:
Thanks Andrew for helping me out. This morning i was able to add a new Raid 10 array using HP's Array Configuration Utility. Everything went smooth.
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