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To create a virtual disk container file, follow the instructions below:

1. Select the virtual disk type from the drop-down list Virtual disk type.

   • If you select a preconfigured Virtual disk type the Block number field is updated to match that model.

   • If you specify the type of Custom, enter the container file size as a number of 512-byte blocks at the field Block number. The size of the custom disk is shown in KB/KiB, MB/MiB, or GB/GiB depending on the configured number of blocks.

2. Specify a name for the virtual disk container file in the field Virtual disk name.

3. Select the location on the host filesystem for the container file by clicking on the location selection button and selecting the correct path. The default is different depending on the Charon-SSP product. For Charon-SSP AWScloud products, it is recommended to store virtual disk and tape containers on a separate EBS volumevolume that can easily be moved to a different host instance if required.

4. Click on Create to create the virtual disk container file. Depending on the size of the container file, this may take some time.

Pass through

You can select OFF (default) or ON. SCSI pass-through is used to allow direct access to SCSI devices. Such devices can be locally or remotely connected SCSI storage devices (e.g., local disks, iSCSI connected disks, Fibre Channel disks, etc.) and other SCSI devices that support the SCSI command set. On the host side, this feature depends on the generic SCSI driver (SG) capabilities of the host operating system. The emulator does not depend on particular adapter types.

This feature is useful, for example, for using shared disks in cluster environments (fencing / persistent reservations) and special SCSI peripherals, such as tape robots or SCSI-connected serial devices and scanners.

Serial Number

The serial number is a physical characteristic of hard disks and is used mainly to persistently and unambiguously identify iSCSI mapped disks (and possibly Fibre Channel disks), for which the device identification on the host (i.e. /dev/sdX) may change when the host system reboots. If the Serial Number field is enabled, the field SCSI device path is disabled.

You can find the serial number using the Storage Manager that is started from the Tools > AWS Cloud menu cloud-specific section in the Tools menu of the Charon-SSP Manager.