SDI storage driver development

SDI is used for SCSI and non-SCSI storage devices.

The supported $interface value for SVR5 SDI drivers is $interface sdi: 4. SDI version 4 drivers work with any DDI 7, 7mp, 8, and 8mp versions; the DDI version must also be declared in the driver's Master(DSP/4dsp) file.

An SDI driver utilizes:

• The driver entry point routines documented in Section D2sdi manual pages.

• The kernel functions documented in Section D3sdi manual pages, to supplement those in Section D3 manual pages.

• The kernel structures documented in Section D4sdi manual pages, to supplement those in Section D4 manual pages.

• The kernel definitions documented in Section D5sdi manual pages, to supplement those in Section D5 manual pages.

SDI driver writers should also be familiar with:

• ``SDI''

• ``SCSI interface''

• ``Extended SCSI addressing scheme''

• ``SDI peripheral hot add/remove''

• ``SCSI multiple channels''

• ``SDI event handling''

• ``SDI pass-through interface''

• ``SDI bus timeout/reset recovery''

• ``SDI routing''

• ``Host bus adapter (HBA)''

• ``Layered device drivers''

• ``Target drivers (SDI)''

• ``Target mode for SDI HBA drivers''

• ``RAID''

• ``Metrics for disk devices''