FAST VP is an automated feature requiring very little manual intervention.

If sufficient flash capacity is not available, you can use a FAST VP-enabled storage pool RAID 5 8+1 (flash) for data devices and RAID 5 4+1 (SAS) for log devices to meet the SAP HANA performance KPIs. FAST VP enables the system to retain the most frequently accessed or important data on fast, high-performance disks and to move the less frequently accessed and less important data to lower-performance, cost-effective disks. For storage pools, FAST VP:

• Monitors the usage of the data in a tiered pool. Tiered pools are heterogeneous pools that are configured with multiple classes of disks (flash plus SAS or NL-SAS).
• Depending on the tiering policy, uses the monitoring statistics to relocate data chunks automatically, at a 256 MB granularity, to other tiers within the pool. For example, the Start High then Auto-Tier policy relocates data to the storage tier that is best suited for that data based on relative activity.
• Performs load-balancing across the disks in tiered and non-tiered pools.

Note:  FAST VP can use all supported disk types except for the SAS Flash 3 disk.

To enable FAST VP:

1. In the Unisphere GUI, click the Update System Setting in the upper right corner.
   Under Software and Licenses > License Information, check that FAST VP is licensed. If not, you must acquire a license.

2. Select Storage Configuration > FAST VP and review the settings shown in Figure 19. You can change the Data relocation rate if required – the default
   is Medium.

Figure 18.     FAST VP settings

3. To modify the relocation schedule, click the Modify data relocation schedule link. The Modify data relocation schedule page appears, as shown in
   Figure 19.

Figure 19.     Modifying the data relocation schedule

4. Ensure that the Schedule data relocation checkbox is checked, and then select the desired time and days to perform the data relocation. Click OK, and then Apply.