ASM - storage virtualization solution

  • From: Michael Elkin <melkin4u@xxxxxxxxx>
  • To: oracle-l <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 5 Aug 2010 07:52:54 +0300

Dear list members,

I would like to know if someone has an experience in the following solution.

Configuration example : 2 IBM servers that are located on different blade
chassis are connected to 2 separate IBM storages.
Each blade server has a fiber connection to each storage.
On each storage we allocate a lun and each server can see all allocated luns
on both storages.

The idea is to use ASM on each node with a mirroring and create a disk group
with ASM "Normal redundancy" using Luns from both storages.
This can give us maximum availability:
1. For DB or node failure we use RAC
2. Blade servers are located on different chassis , so we do not loose all
RAC nodes in case of a complete blade chassis failure
3. In case of a storage failure we have a second storage that is mirrored by
ASM and most important is always active and is connected to all RAC servers,
this means there is no need to perform any manual operations to switch this
storage to an active mode and connect RAC servers to it.

In general ASM can serve here as a storage virtualization solution.

Thank you.

Best Regards
Michael Elkin

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