Hi,
I would like to have redundancy for the single controller in back-plane for NVMe EJ1X for a S1022 server. My customer has only A VIOS per server and he will do mirroring at the VIOS rootvg level but he would like to have also redundancy for the backplane. Is it a supported configuration to have 2 EJ1X Storage backplane with1 NVME disk EC7T in each ?
Thanks. 

------------------------------
-----------------------------------
Thierry Huché
Power Systems Brand Technical Specialist
IBM France
-----------------------------------
------------------------------

#PowerVM

Dear Thierry

There is now a draft copy of the new Technical Overview redbook on the Scale Out Power10 servers available on IBM Redbook web site:  https://redbooks.ibm.com/redpieces/abstracts/redp5675.html.  On page 117 and 127, it appears that you can order a max of 2 units of EJ1X backplane for S1022.  On page 128, you will see the table list of available NVMe devices. EC7T is in the list and you should be able to order 2 units for what your customer wants. 

------------------------------
Right action is better than knowledge; but in order to do what is right, we must know what is right.
-- Charlemagne

Satid Singkorapoom
------------------------------

The NVMe backplane take PCIe adapter slots

------------------------------
John Banchy
------------------------------

Original Message:
Sent: Tue July 19, 2022 06:39 AM
From: Satid Singkorapoom
Subject: VIOS NVME torage backplane redundancy

Dear Thierry

There is now a draft copy of the new Technical Overview redbook on the Scale Out Power10 servers available on IBM Redbook web site:  https://redbooks.ibm.com/redpieces/abstracts/redp5675.html.  On page 117 and 127, it appears that you can order a max of 2 units of EJ1X backplane for S1022.  On page 128, you will see the table list of available NVMe devices. EC7T is in the list and you should be able to order 2 units for what your customer wants. 

------------------------------
Right action is better than knowledge; but in order to do what is right, we must know what is right.
-- Charlemagne

Satid Singkorapoom
------------------------------

Thanks all for your response, so I will go for 2 EJ1X with 1 EC7T in each.

------------------------------
-----------------------------------
Thierry Huché
Power Systems Brand Technical Specialist
IBM France
-----------------------------------
------------------------------

Original Message:
Sent: Tue July 19, 2022 10:37 AM
From: Harald Stürner
Subject: VIOS NVME torage backplane redundancy

Hi Thierry,

 

yes it is supported, you can select 2 EJ1X, therefore you need 2 PCI slots, and only 2 EC7T NVMe Devices.

 

Perhaps you have to rearrange the NVMe Devices.

 

 

Regards, Harald

i. A. Harald Stürner Senior Consultant  Tel:      +49 711 72819-7123   Mobil:   +49 151 57690974   Fax:     +49 711 72819-7120  E-Mail: H.Stuerner@profi-ag.de	PROFI Engineering Systems AG   Breitwiesenstraße 19   70565 Stuttgart
PROFI Engineering Systems AG, Otto-Röhm-Str. 18, 64293 Darmstadt, Amtsgericht Darmstadt HRB 7833. Vorstand: Lutz Hohmann Aufsichtsratsvorsitzender: Dr.-Ing. Udo Hamm.