HPE 3PAR StoreServ 7000 Storage Service And Upgrade Manual page 33

Example of a correct Drive allocation in two SFF enclosures
This example demonstrates two SFF enclosures loaded correctly with these Drives: three pairs of FC
(six Drives), five pairs of NL (10 Drives), and two pairs of SSD (four Drives).
Example of an unbalanced allocation in two SFF enclosures
CAUTION:
This example demonstrates an unbalanced allocation due to the NL Drives not being installed in
even pairs.
Avoid having an odd number of Drives allocated in the Drive enclosures.
HPE 3PAR StoreServ 7000 Storage LFF Drive loading guidelines and examples
IMPORTANT:
Notice that the numbering for the order and direction that Drives are installed in the LFF enclosure
do not follow the same number order used to identify Drives from the storage system management
software. Drives are installed in vertical columns instead of by sequential numbering.
LFF Drives are loaded starting at bay 0, bottom to top in the left-most column, then bottom to top in the
next column, and so on. Note bay numbering does not follow how the bays are loaded. The bays are
Upgrade of the storage system 33