How to add addional disk cage for the EVA 4400

[Max Sorokin]

Hi All,

Currently we have an EVA 4400 with 2 M6412 drive enclosures. We plan to add another one M6412 drive enclosure.
Is some manual how we can do it without lose of data.

Thanks in advance,
BR,
Max

[IBaltay · Accepted solution]

Hi
this could help you:
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01419085/c01419085.pdf?jumpid=reg_R1002_USEN

[Max Sorokin]

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01419085/c01419085.pdf?jumpid=reg_R1002_USEN

in last section of this document we can see the alternate enclosure cabling with 4 enclosures (2 under the controllers and 2 upon the controllers. please see attachment for details) currently we have 2 disk enclosures under the controllers enclosure, can we add one disk enclosure upon the controllers?

[Pieter 't Hart]

page-4 Figure 12 shows the cabling for an array with one controller enclosure and three drive enclosures.

So there will be no problem adding only a single drive enclosure, to an existing configuration with two drive-enclosures.

The diagrams suggest how to run the cables in a way that anyone can easily follow the order of the connections.

the things to take into account is
- start at one controller
- daisy-chain through all driver enclosures
- end up at the other controller.
- do this twice (for both paths)
- don't "stretch" the cables (use correct length).

[Max Sorokin]

Hi All,

We add new disk enclosure, and EVA did not start up, after that. No any errors and red leds on front plane and backplane.
We start new tread about this problem:

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1369920


When we remove this new enclosure, EVA start up is normal.

Please help.

Thanks in advance,

BR,
Max