Hello,
You dont say if the server is an ML350e or ML350p Gen 8?
Assuming the 'p', then have a look at the Quickspecs page here...
http://h18000.www1.hp.com/products/quickspecs/14226_na/14226_na.pdfhttp://
The bottom of page 31 explains all the optional drive cages etc.
In particular the difference between the HP 5U 8 Small Form Factor (SFF) Hot Plug Drive Cage Kit 659484-B21 and the HP 5U 8 SFF Expander Hard Drive Cage Kit 661714-B21
NOTE: Additional Hot Plug Drive Cages require a separate Smart Array controller for each drive cage. HP recommends the HP Smart Array P420/1GB FBWC 6Gb 2-ports Int
SAS Controller (P/N 631670-B21).
NOTE: Expander HDD Cage Kit allows up to 18 LFF / 24 SFF HDDs managed under one
single controller. The controller must have a minimum of 512MB FBWC module
installed.
Thanks
Mark...