Logical unit (LU) settings are configurable at the LU level.
LUs that are accessed by hosts can be configured differently. Use the following option settings for a LUN that is attached to the system.
| Parameter | Setting |
|---|---|
| Segment size | 256 KB |
| Capacity that is reserved for future segment size changes | Yes |
| Maximum future segment size | 2,048 KB |
| Modification priority | High |
| Read cache | Enabled |
| Write cache | Enabled |
| Write cache without batteries | Disabled |
| Write cache with mirroring | Enabled |
| Flush write cache after (in seconds) | 10.00 |
| Dynamic cache read prefetch | Enabled |
| Enable background media scan | Enabled |
| Media scan with redundancy check | Enabled |
| Pre-Read redundancy check | Disabled |
You must not have caching without batteries that are enabled.
Set the host type for the system to IBM TS SAN VCE when you create a new LU.