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How to daisy-chain a RES2SV240 to a RES2SV240

CTowl
New Contributor I
1,293 Views

Good day.

I have a LSI 9271-8iCC RAID controller card with a RES2SV240 expander connected to it using ports 0-3 on the expander. I want to add capacity by using a remote chassis containing a RES2SV240 connected to my existing system. I have installed a SFF-8087 to SFF-8088 adapter in each cassis for external cabling.

1 - Should I daisy-chain the 2 RES2SV240 cards? If so which ports should I use?

2 - Is it better to connect both expanders to the controller card?

Thanks. Cal

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1 Solution
idata
Community Manager
124 Views

Hello,

After checking the documentation for the expander card, it does not mention that daisy chain configurations between the expanders are supported. Please follow the configuration described on the users guide page 9 figure 4:

http://www.intel.com/support/motherboards/server/sb/CS-031813.htm Server Products — Intel® RAID Expander Card RES2SV240 Hardware User Guide

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3 Replies
Allan_J_Intel1
Employee
124 Views

I have moved this thread to the proper support team

Allan.

AP16
Valued Contributor III
124 Views

Better connect each expander to card that chaining them, because controller have a maximum throughput limitation on each internal port, so SSDs can face a shortage of bandwidth. For HDDs 8 devices per controller port should be still a not-bottlenecked config.

idata
Community Manager
125 Views

Hello,

After checking the documentation for the expander card, it does not mention that daisy chain configurations between the expanders are supported. Please follow the configuration described on the users guide page 9 figure 4:

http://www.intel.com/support/motherboards/server/sb/CS-031813.htm Server Products — Intel® RAID Expander Card RES2SV240 Hardware User Guide

View solution in original post

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