Service scheduling
The Compression/Encryption, Content Verification, Disposition, Duplicate Elimination, Garbage Collection, Geo-distributed Erasure Coding, Protection, S Series Balancing, Scavenging, and Storage Tiering services run according to a weekly schedule. The schedule controls when during the week each service runs and the performance level at which it runs.
Within a time period, each scheduled service has a performance level of low, medium, or high. The performance level determines the load the service puts on the HCP system. The higher the performance level, the greater the load.
The Replication service also runs according to a schedule, but this service has its own scheduling interface.
HCP comes with a predefined service schedule named HCP Default Schedule. This schedule cannot be modified or deleted.
HCP SAIN systems with spindown storage come with an additional predefined schedule named HCP Spindown Schedule. This schedule is optimized for Storage Tiering service activity against spindown storage. The HCP Spindown Schedule is modifiable.
You can create as many other schedules as you want. However, only one schedule can be active at a time. At any time, you can change which schedule is active. For example, you could create two schedules: one that puts a very light load on the system, and one that puts a heavier load on the system. During periods of high system usage, you could activate the first schedule. During periods of low system usage, you could activate the second schedule.
After creating a service schedule, you can modify or delete it. You can modify a schedule regardless of whether it is active. You can delete a schedule only while it is inactive.