Best Practices—SFF Drive Allocating and Loading Guidelines
When allocating and loading drives in enclosures, the following are the Hewlett Packard
Enterprise recommended best practice guidelines:
• Load SFF drive types (FC, NL, and SSD) in pairs.
• Load starting from slot 0 on the left and filling the slots sequentially to the right.
• Load all of the same drive types in adjacent slots before loading the next drive type.
• Allocate the same number of drive-type pairs to every enclosure in the system.
Example 1
Figure 64 (page 66) shows an SFF enclosure loaded with two pairs of FC drives, three pairs of
NL drives, and two pairs of SSDs.
Figure 64 SFF drive allocation (one enclosure)
Example 2
Figure 65 (page 66) shows two SFF enclosures loaded with three pairs of FC drives, five pairs
of NL drives, and two pairs of SSDs.
Figure 65 SFF drive allocation (two enclosures)
Avoid Practices—SFF Drive Allocating and Loading Guidelines
When allocating and loading drives in enclosures, the following are the Hewlett Packard
Enterprise recommended avoid practice guidelines:
• Avoid leaving any empty slots between drives.
• Avoid an unbalanced number of same type drives.
• Avoid loading same-type drives in slots that are not adjacent to each other.
• Avoid filling an entire drive enclosure when additional enclosures are available. Leaving
empty slots in each enclosure allows for future upgrade flexibility to add a new drive type
and license features.
66 System Component Installation in Existing Rack
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