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Old 09-05-2005, 06:51 PM   #1
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Question Power5 - virtualization question (SAN)

Hi guys,
I am using p5 570 with virtualization. I have a question probably stupid but anyway as I don't have the answer I ask you.
I know that we can virtualized Ethernet and SCSI (it is what I did) but can we virtualized SAN disks (EMC or ESS) I never did it but normally if we see the disks on the vio and if we have done the mapping on the HMC I think we can virtualized the SAN but as I told you I never did it and on the IBM course we only see SCSI vurtualization (internal disks). So if you have the answer or you have already done it please tell me
Thanks in advance.

Another question about JS20, I never installed this system do you know where I can find some documentation about how to install and configure AIX5.3 on JS20 and the difference with a standard pseries ? Probably not a lot (only no virutalization with this system) and can we have SAN attached ?

I know to many questions sorry but if you have the answer...

Thanks again.
Old 09-09-2005, 09:38 AM   #2
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Location: Macomb, MI
Distribution: Ubuntu|Red Hat ES|AIX
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I haven't actually done it, but you should be able to communicate with the SAN using virtual SCSI via the VIO server. I have a diagram of an example, but unfortunately it's hard copy. I'll see if I can find some more info on how to actually implement it.
Old 09-09-2005, 09:49 AM   #3
Registered: Jan 2002
Location: Macomb, MI
Distribution: Ubuntu|Red Hat ES|AIX
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Found this in "Advanced POWER Virtualization: On IBM eServer p5 Servers: Introduction and Basic Configuration" redbook.

Redbook Link

Furthermore, virtual I/O allows attachment of previously unsupported storage
solutions. As long as the Virtual I/O Server supports the attachment of a storage
resource, any client partition can access this storage by using Virtual SCSI

For example, if there is no native support for EMC storage devices on Linux,
running Linux in a logical partition of a POWER5 server makes this possible.

A Linux client partition can access the EMC storage through a Virtual SCSI
adapter. Requests from the virtual adapters are mapped to the physical
resources in the Virtual I/O Server. Driver support for the physical resources is
therefore only needed in the Virtual I/O Server.
Hope this helps.
Old 09-13-2005, 11:41 PM   #4
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Thank you. I will see for the moment there is no EMC disks available. When I will receive them I will give you an update.
Thank you again.


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