Tiering policy levels

All(0)

Single Tier

Both tiers

All 3 tiers

Default Tiering Policy

Level1(1)

Same as All(0)

Tier 1

Tier 1

Data is located to the Top Tier. Any overflow moves to the next lower tier.

Level2(2)

Same as All(0)

Same as All(0)

Tier 1 and Tier 2

See note

Data is located to the Top Tier after Level1(1) assignments are processed. Any overflow moves to the next lower tier.

Level3(3)

Same as All(0)

Same as All(0)

Tier 2

See note

Data is located to the Middle Tier. Any overflow moves to the top tier.

Level4(4)

Same as All(0)

Same as All(0)

Tier 2 and Tier 3

See note

Data is located to the Middle Tier after Level3(3) assignments are processed. Any overflow moves to the next lower tier.

Level5(5)

Same as All(0)

Tier 2

Tier 3

See note

Data is located to the bottom tier. Any overflow moves to the next higher tier.

From Level6(6) to Level31(31)

Same as All(0)

Depends on user setting

Depends on user setting

For example:

If additional capacity is added to the pool and the capacity defines a new Tier 1 or new Tier 2, the DP-VOLs with a Level 5(5) assignment will not physically move but Level 5(5) will be associated with Tier 3.

If additional capacity is added to the pool and the capacity defines a new Tier 3, the DP-VOLs with a Level 5(5) assignment will physically move to the new Tier 3 and Level 5(5) will be associated with Tier 3.