Logical unit (LU) settings are configurable at the LU level.
Table 1 describes the options that must be set for each LU that is accessed by the Lenovo Storage V7000. LUs that are accessed by hosts can be configured differently.
| Option | HSG80 controller default setting | Lenovo Storage V7000 required setting |
|---|---|---|
| TRANSFER_RATE_REQUESTED | 20MHZ | Not applicable |
| TRANSPORTABLE/ NOTRANSPORTABLE | NOTRANSPORTABLE | NOTRANSPORTABLE |
| ENABLE_ACCESS_PATH | ENABLE_ACCESS_ |
ENABLE_ACCESS_ |
| DISABLE_ACCESS_PATH (See Note.) | NO DEFAULT | NO DEFAULT |
| IDENTIFIER/ NOIDENTIFIER | NOIDENTIFIER | Not applicable |
| MAX_READ_CACHE_SIZE | 32 | Not applicable |
| MAX_WRITE_CACHE_SIZE | 32 | 64 or higher |
| MAX_CACHED_TRANSFER_SIZE | 32 | Not applicable |
| PREFERRED_PATH/ NOPREFERRED_PATH | NOPREFERRED_PATH is set | Not applicable |
| READ_CACHE/ NOREAD_CACHE | READ_CACHE | Not applicable |
| READAHEAD_CACHE/ NOREADAHEAD_CACHE | READAHEAD_CACHE | Not applicable |
| RUN/ NORUN | RUN | RUN |
| WRITE_LOG/NOWRITE_LOG | NOWRITE_LOG | NOWRITE_LOG |
| WRITE_PROTECT/ NOWRITE_PROTECT | NOWRITE_PROTECT | NOWRITE_PROTECT |
WRITEBACK_CACHE/ |
WRITEBACK_CACHE | WRITEBACK_CACHE |
| Note: DISABLE_ACCESS_PATH can be used to disable access from specific hosts. It must always be overridden by using ENABLE_ACCESS_PATH=ALL on all connections to the Lenovo Storage V7000 nodes. | ||