KERNSAFE - iSCSI SAN Software and Storage Virtualization

A generic SCSI device target can expose many types of server-attached devices, including physical disks, optical drives, USB storage, scanners, and other SCSI-compatible hardware. Commands sent by the initiator are passed through to the underlying device, so the client can use it almost as if it were locally attached.

Creating a Generic SCSI Device

Follow the steps below to create a SCSI device:

Step 1. Click Add on the toolbar to open the Create iSCSI Target wizard.

Choose Generic SCSI in the Device Type group.

Press the Next button to continue.

Step 2. Select the physical SCSI device.

Select a device to be created as an iSCSI device.

Press the Next button to continue.

Step 3. Finish creating the iSCSI target.

Enter the target name.

Select an authorization mode. If you need more information, see Authorization Mechanism.

Global Authorization: The target inherits CHAP and IP filter settings from the global configuration. If this option is cleared, the target uses its own authorization settings.

Concurrent Access: Allows multiple initiators to access the target concurrently when the workload supports shared access.

Report Readonly: Reports the target as read-only when the initiator does not have write permission.

Click Finish to complete target creation.

Note: If you use the Windows version of KernSafe Storage Center, you may need to adjust the initiator registry settings because some SCSI devices have transfer-size limits. The settings are as follows:

Registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E97B-E325-11CE-BFC1-08002BE10318}\0000\Parameters
Set the following registry values to 65536:

• FirstBurstLength
• MaxBurstLength
• MaxRecvDataSegmentLength
• MaxTransferLength

The sub-key 0000 may instead be 0001, 0002, and so on. Verify the DriverDesc value and use the key for the Microsoft iSCSI Initiator.