How would a 3rd Superdome cabinet connect to others?

[Ed Lawrence_1]

The HP literature states that cabinets can be numbered from 0 - 7, and implies one can attach up to eight cabinets.

I have a dual-cabinet 64-way. I can clearly see the cabling between the left and right backplanes.

I was wondering how a third cabinet would attach or is that not possible?

I don't see how the existing left or right back-planes could attach to a another [left or right] bckplane. e.g. It doesn't seem like the flex cable connections would match up.

I've looked in the service guides and admin books. All I have found is info on dual-cabinet scenarios.

Got any info regarding this?
Thank you.

[Torsten. · Accepted solution]

The maximum is 2 cabinets, even if you can find connectors for 8 cabinets in some older models.

2 cabinets is maximum.

[Asif Sharif]

Maximum Superdome Cabinets = 2
Only an I/O expansion cabinet is required when a customer requires more PCI X cards.

For information please go through the below link.

http://h18000.www1.hp.com/products/quickspecs/11717_na/11717_na.HTML#Upgrades

Regards,
Asif Sharif

[Sivakumar TS]

Hi,

You can have only 2 Cabinets in a COMPLEX.

you may have 2 IOX ( IO Extension Cabinets )also connected to this.

As a whole you can have

2 SUPERDOME CABINETs
&
2 IOX CABINETs

Regards,

Siva.

[melvyn burnard]

The ORIGIONAL design was to be able to have up to 8 cabinets (0-7), with 8 cells in each cabinet, and then 4 cpu's per cell. This would have given a 256 cpu server.
This is why the IO Expansion Cabinets are numbered from 8.
Unfortunately, due to a number of factors, it was decided to limit it to 2 cabinets per complex.

[Ed Lawrence_1]

Thank you all for the quick reponses.
As Monty Python might say, "TWO! Two shall be the maximum number of Superdome cabinets in a complex."