EVA8400. Increase Lun size

[MitVongNam]

I need to increase an existing Lun from 300G allocated to serverX to 500G. How to do it? Do I need to bring the server down or reboot? I searched the forum and found no relevant information. THANKS in advance.

[Uwe Zessin]

It depends on the operating system and how it organizes the data on disk.

Some systems do not have an easy way to refresh the disk size. And some partition / volume management system do not support the growth of an existing disk at all.

[MitVongNam]

It is Windows 2K3.

I am more concern with how the server will see the 500G Lun once the Lun is extended from 300G. I don't want the 300G logical volume/drive re-formatted since there are data residing.

[Uwe Zessin]

On Windows 2003 and with a basic disk in a primary partition it is easy:

- resize the virtual disk on the EVA
-- enter the new size and click [Save]

- go into the disk management
-- sometimes a 'refresh' is sufficient
-- sometimes a rescan is needed
-- in the end you should see unpartitioned space
-- at the end of the disk

- open a command Window
>diskpart
>list volume

> select volume
> extend
> exit

[MitVongNam]

THANKS.

[Martin Smoral]

but will that work for the System Disk ?

[Uwe Zessin]

Not on Windows 2003. If you use Boot-from-SAN or a virtual machine, you need to attach the system disk to a different system has a data disk.