The RamSan® GUI provides configuration settings and options that can be used with the system.
When you create a logical unit (LU), the options in RamSan LU options are available on RamSan® systems.
| Option | Data type | Range | Default | System setting | Comments |
|---|---|---|---|---|---|
| Name | String | 1 character - 32 characters | Logical unit number | Any | This is only for management reference. |
| Number | Integer | 0 - 1023 | Next available LUN | 0 - 254 | Some hosts have known limitations of 254 as their highest LUN ability. One logical unit can appear at multiple LUNs. For example, the same data could appear at LUN 1, LUN 7, and LUN 124. |
| Size | Integer | 1 MB - maximum capacity | Maximum available capacity | Any | MB and GB are BASE2 offerings. |
| Sector size | Option list | 512 - 4096 | 512 | 512 | The system does not support the new large-sector 4096-byte presentation. |
| Offset | Option list | 0 - 32 | 0 | 0 | Sector alignment offset |
| Backup mode | Option list | Writeback caching or writethrough caching | Writeback caching | Writeback caching | Use writeback caching in production. Use writethrough caching strictly for diagnostics. |
| Device ID | Integer | Blank, 0 - 32768 | Blank | Blank | Specific only to OpenVMS. |
| Report corrected media errors | Check box | Checked or cleared | Checked | Checked | Notifies the host if Electronic Customer Care (ECC) was used to correct the requested data. |
| Report uncorrected media errors | Check box | Checked or cleared | Checked | Checked | Always report uncorrected media errors. |
No host options are needed to present the RamSan® systems to the systems.