Upgrade; Customer Self Upgrade; Drive Additions; Guidelines For The Drive Installation - HPE 3PAR StoreServ 8000 Service And Upgrade Manual

Upgrade

Customer self upgrade

IMPORTANT: Some Hewlett Packard Enterprise components are not designed for a customer self
upgrade (CSU). To satisfy the customer warranty, Hewlett Packard Enterprise requires that an
authorized service provider replace such components.

Drive additions

Guidelines for the drive installation

IMPORTANT: The guidelines for how the drives are installed, allocated, and balanced are critical to
the performance and reliability of your storage system.
• An encrypted storage system, for example any storage system that has the HPE 3PAR Data
Encryption license activated or intended to be activated, must have only self-encrypted drives
installed.
• A nonencrypted storage system can have a mix of encrypted and nonencrypted drives.
• A pair or pairs identical drives must be installed together and must be of the same capacity, speed,
and type. Never install an uneven number of drives of one type within a single enclosure.
• Different drive types can be loaded next to each other in the same enclosure, but load all the drives of
one drive type before loading drives of a different drive type.
• For each drive type installed in the array, the following are the minimum recommended initial
quantities:
◦ For SSD and SAS performance HDDs, the recommended initial quantity is eight drives per pair of
controller nodes. The required minimum is six drives per pair of controller nodes.
◦ For Nearline HDDs, the recommended initial quantity is 12 drives per pair of controller nodes and is
the same for required minimum.
NOTE: Eight drives support RAID 1 and RAID 5. For RAID 6, choose 12 drives.
• RAID 6 is recommended for all drive types, SSDs, and HDDs (both Fast Class and Nearline).
• The minimum number of SSDs for Adaptive Flash Cache (AFC) is two.
• Minimum upgrade quantity is four drives per pair of controller nodes or two drives per enclosure,
whichever is larger. The best practice is to run Autonomic Rebalance (also known as tunesys) after
adding the drives.
• All controller node enclosures must contain either zero or an even number of the same type of drives
(FC, NL, SSD).
• All drive enclosures must contain an even number of drives, with a minimum of two.
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