HP 3PAR T-Class Installation and Deinstallation Guide

G Storage System Sparing Schedule
This appendix provides information on choosing the necessary sparing options when setting up
your T-Class Storage System.
• To view your systems current sparing algorithm settings, issue the showsys -paramcommand.
• To set up or modify your systems sparing algorithm, issue the setsys SparingAlgorithm
<sparing_option> command, where <sparing_option> is an option listed in “Options
for CLI command ” (page 214).
Table 33 Options for CLI command
Sparing DefinitionsSparing Option
Allocates one disk of spare chunklets for every 40 disks
with a required minimum of four disks of spares.
Default
Allocates one disk of spare chunklets for every 40 disks
with no required minimum disks of spares.
Minimal
Allocates one disk worth of spare chunklets per drive cage
of the largest size disk in the system to provide cage level
high availability.
Maximal
Allows the user to allocate a specific number of chunklets
for spare space (customize the number of spare chunklets).
Custom
214 Storage System Sparing Schedule