VMware Virtual disk SCSI Disk Device
User Benchmarks
| Model | Type | Score | Seq. Read MB | Seq. Write MB | Read 4k64QD | Write 4k64QD | Read Access msek. | Write Access msek. |
| VMware Virtual disk SCSI Disk Device | 97 | 8649 | 3247 | 3565 | 478.86 | 268.06 | 0.08 | 0.09 |
| VMware Virtual disk SCSI Disk Device | 54 | 5636 | 3070 | 1555 | 380.37 | 188.50 | 0.10 | 0.16 |
| VMware Virtual disk SCSI Disk Device | 54 | 5620 | 3033 | 1602 | 393.24 | 188.40 | 0.11 | 0.16 |
| VMware Virtual disk SCSI Disk Device | 54 | 5586 | 2991 | 1591 | 396.91 | 188.23 | 0.11 | 0.16 |
| VMware Virtual disk SCSI Disk Device | 86 | 5006 | 1944 | 1919 | 179.46 | 157.83 | 0.11 | 0.12 |
| VMware Virtual disk SCSI Disk Device | 54 | 4491 | 1413 | 1902 | 97.62 | 94.18 | 0.07 | 0.07 |
| VMware Virtual disk SCSI Disk Device | 34 | 4046 | 1755 | 1319 | 328.77 | 265.89 | 0.10 | 0.04 |
| VMware Virtual disk SCSI Disk Device | 54 | 1941 | 747 | 725 | 54.49 | 52.76 | 0.22 | 0.22 |
| VMware Virtual disk SCSI Disk Device | 215 | 1866 | 794 | 625 | 287.78 | 50.34 | 0.17 | 0.38 |
| VMware Virtual disk SCSI Disk Device | 172 | 1803 | 544 | 773 | 173.79 | 94.48 | 0.25 | 0.26 |
| VMware Virtual disk SCSI Disk Device | 172 | 1803 | 544 | 773 | 173.79 | 94.48 | 0.25 | 0.26 |
| VMware Virtual disk SCSI Disk Device | 172 | 1803 | 544 | 773 | 173.79 | 94.48 | 0.25 | 0.26 |
| VMware Virtual disk SCSI Disk Device | 172 | 1803 | 544 | 773 | 173.79 | 94.48 | 0.25 | 0.26 |
| VMware Virtual disk SCSI Disk Device | 172 | 1803 | 544 | 773 | 173.79 | 94.48 | 0.25 | 0.26 |
| VMware Virtual disk SCSI Disk Device | 107 | 1760 | 730 | 635 | 164.82 | 40.30 | 0.20 | 0.26 |
| VMware Virtual disk SCSI Disk Device | 107 | 1644 | 810 | 331 | 324.96 | 100.96 | 0.13 | 0.94 |
| VMware Virtual disk SCSI Disk Device | 537 | 1502 | 415 | 678 | 226.49 | 93.87 | 0.35 | 0.23 |
| VMware Virtual disk SCSI Disk Device | 537 | 1502 | 415 | 678 | 226.49 | 93.87 | 0.35 | 0.23 |
| VMware Virtual disk SCSI Disk Device | 34 | 1383 | 610 | 510 | 28.63 | 24.55 | 0.25 | 0.21 |
| VMware Virtual disk SCSI Disk Device | 322 | 1298 | 463 | 470 | 171.34 | 104.34 | 0.23 | 0.47 |
| VMware Virtual disk SCSI Disk Device | 537 | 1291 | 445 | 504 | 148.52 | 116.60 | 21.60 | 0.62 |
| VMware Virtual disk SCSI Disk Device | 1100 | 1268 | 613 | 266 | 295.94 | 175.51 | 0.30 | 0.48 |
| VMware Virtual disk SCSI Disk Device | 216 | 1207 | 451 | 443 | 112.01 | 87.37 | 0.36 | 0.58 |
| VMware Virtual disk SCSI Disk Device | 34 | 1165 | 568 | 174 | 358.51 | 221.46 | 0.24 | 0.64 |
| VMware Virtual disk SCSI Disk Device | 86 | 1094 | 596 | 126 | 268.42 | 214.20 | 0.24 | 0.51 |
| VMware Virtual disk SCSI Disk Device | 75 | 1014 | 675 | 97 | 40.59 | 39.22 | 0.29 | 0.92 |
| VMware Virtual disk SCSI Disk Device | 64 | 980 | 334 | 434 | 155.84 | 99.99 | 23.81 | 0.61 |
| VMware Virtual disk SCSI Disk Device | 34 | 973 | 509 | 233 | 68.75 | 4.27 | 0.31 | 0.94 |
| VMware Virtual disk SCSI Disk Device | 107 | 904 | 494 | 205 | 19.09 | 12.74 | 0.37 | 0.49 |
| VMware Virtual disk SCSI Disk Device | 1100 | 834 | 282 | 347 | 114.76 | 113.70 | 0.69 | 0.82 |
| VMware Virtual disk SCSI Disk Device | 34 | 691 | 320 | 188 | 83.23 | 69.67 | 0.62 | 0.89 |
| VMware Virtual disk SCSI Disk Device | 239 | 690 | 272 | 204 | 106.54 | 98.31 | 0.38 | 0.29 |
| VMware Virtual disk SCSI Disk Device | 91 | 664 | 161 | 363 | 83.34 | 42.81 | 0.62 | 0.60 |
| VMware Virtual disk SCSI Disk Device | 91 | 664 | 161 | 363 | 83.34 | 42.81 | 0.62 | 0.60 |
| VMware Virtual disk SCSI Disk Device | 859 | 634 | 349 | 103 | 130.11 | 1.86 | 0.42 | 2.46 |
| VMware Virtual disk SCSI Disk Device | 107 | 593 | 257 | 171 | 119.03 | 4.33 | 0.61 | 1.40 |
| VMware Virtual disk SCSI Disk Device | 43 | 583 | 280 | 234 | 16.49 | 16.92 | 2.46 | 0.44 |
| VMware Virtual disk SCSI Disk Device | 54 | 579 | 112 | 240 | 242.00 | 257.76 | 18.44 | 0.67 |
| VMware Virtual disk SCSI Disk Device | 86 | 555 | 261 | 178 | 166.67 | 13.76 | 2.35 | 2.01 |
| VMware Virtual disk SCSI Disk Device | 75 | 545 | 272 | 129 | 66.13 | 5.59 | 0.62 | 1.57 |
| VMware Virtual disk SCSI Disk Device | 107 | 513 | 226 | 200 | 8.72 | 3.91 | 3.32 | 1.19 |
| VMware Virtual disk SCSI Disk Device | 161 | 467 | 196 | 170 | 19.17 | 17.13 | 3.01 | 0.50 |
| VMware Virtual disk SCSI Disk Device | 268 | 454 | 208 | 127 | 74.95 | 13.26 | 2.10 | 0.47 |
| VMware Virtual disk SCSI Disk Device | 1100 | 418 | 178 | 117 | 45.68 | 28.31 | 0.43 | 0.52 |
| VMware Virtual disk SCSI Disk Device | 3758 | 354 | 145 | 147 | 3.23 | 2.70 | 9.93 | 1.61 |
| VMware Virtual disk SCSI Disk Device | 107 | 318 | 110 | 111 | 29.26 | 29.62 | 0.36 | 0.42 |
| VMware Virtual disk SCSI Disk Device | 268 | 314 | 127 | 58 | 107.04 | 23.30 | 0.91 | 0.48 |
| VMware Virtual disk SCSI Disk Device | 1636 | 290 | 107 | 102 | 12.01 | 11.84 | 0.37 | 0.46 |
| VMware Virtual disk SCSI Disk Device | 247 | 280 | 93 | 91 | 36.97 | 79.34 | 0.38 | 0.40 |
| VMware Virtual disk SCSI Disk Device | 537 | 252 | 165 | 51 | 1.13 | 1.94 | 9.07 | 2.63 |
| VMware Virtual disk SCSI Disk Device | 34 | 223 | 99 | 43 | 56.14 | 63.17 | 0.36 | 1.03 |
| VMware Virtual disk SCSI Disk Device | 34 | 213 | 93 | 68 | 78.88 | 1.76 | 0.54 | 5.40 |
| VMware Virtual disk SCSI Disk Device | 268 | 159 | 56 | 75 | 0.50 | 0.51 | 11.48 | 11.24 |
| VMware Virtual disk SCSI Disk Device | 215 | 147 | 73 | 49 | 8.70 | 4.57 | 10.27 | 4.33 |
| VMware Virtual disk SCSI Disk Device | 64 | 117 | 79 | 25 | 1.25 | 0.21 | 13.80 | 40.33 |
| VMware Virtual disk SCSI Disk Device | 64 | 117 | 79 | 25 | 1.25 | 0.21 | 13.80 | 40.33 |
| VMware Virtual disk SCSI Disk Device | 34 | 101 | 58 | 28 | 1.63 | 0.66 | 8.69 | 17.09 |
| VMware Virtual disk SCSI Disk Device | 34 | 89 | 55 | 17 | 1.39 | 0.66 | 9.48 | 13.48 |
| VMware Virtual disk SCSI Disk Device | 129 | 4 | 0 | 0 | 0.00 | 0.00 | ||
| VMware Virtual disk SCSI Disk Device | 64 | 1 | 0 | 0 | 0.00 | 0.00 | ||
| VMware Virtual disk SCSI Disk Device | 54 | 0 | 0 | 0 | 0.00 | 0.00 | ||
| VMware Virtual disk SCSI Disk Device | 129 | 0 | 0 | 0 | 0.00 | 0.00 | ||
| VMware Virtual disk SCSI Disk Device | 64 | 0 | 0 | 0 | 0.00 | 0.00 |
The measurement of the VMware Virtual disk SCSI Disk Device was carried out on Windows. Similar read and write speeds could certainly be achieved with the VMware Virtual disk SCSI Disk Device under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the VMware Virtual disk SCSI Disk Device should be used.
---
The VMware Virtual Disk SCSI Disk Device is a virtual disk driver used in VMware environments to provide virtual disks to virtual machines (VMs). This driver simulates a SCSI disk within the virtual machine and allows the VM to access virtual disks as if they were real physical SCSI disks.
1. Description
In a VMware environment, virtual disks (VMDKs) are files on the host file system that act as virtual disks for VMs. The VMware Virtual Disk SCSI Disk Device driver is responsible for presenting these virtual disks so that they can be recognized and used by the VM like a real SCSI disk. This is done by emulating a SCSI interface within the VM.
2. Technical details
- Driver Name: VMware Virtual Disk SCSI Disk Device
- Interface: SCSI (Small Computer System Interface) emulated by VMware
- Compatibility: Works with various operating systems that support SCSI devices (e.g. Windows, Linux, etc.)
- Virtual Hard Disk (VMDK): Files that represent the virtual hard disks and are stored on the host system
- Virtual SCSI Controller: VMware uses a virtual SCSI controller (e.g. LSI Logic, VMware Paravirtual) within the VM to manage the virtual disk
3. Functions
- Virtual Disk Simulation: Allows virtual disks to appear as SCSI drives in the VM.
- Performance optimization: Depending on the configuration and the virtual SCSI controller used, this can lead to better performance characteristics compared to IDE or SATA controllers.
- Hot-Add/Hot-Remove: Some virtual SCSI controllers support the ability to add or remove disks "on-the-fly" without having to restart the VM.
- Advanced features: Support for features such as snapshots, cloning, and thin provisioning.
4. Areas of application
- Server virtualization: In server environments where powerful virtual hard disks are required that offer a high data transfer rate.
- Databases: When using virtual machines for database servers where fast I/O operations are critical.
- Test and development environments: Virtual disks can be easily created and modified, allowing for a flexible test and development environment.
- Backup and disaster recovery: Snapshots and other backup techniques can be used to save the state of the virtual disks.
5. Advantages and disadvantages
Advantages:
- Performance: Virtual SCSI controllers (such as VMware Paravirtual) can provide better performance compared to IDE controllers.
- Flexibility: Allows you to easily manage, expand and customize virtual disks.
- Compatibility: Many operating systems support virtual SCSI devices and controllers, making integration easier.
- Expandability: Hot-add functionality for dynamic adjustments of the hard drive size.
Disadvantages:
- Complexity: Managing virtual disks and SCSI controllers can be more complex than simpler IDE or SATA controller options.
- Performance Differences: Actual performance may vary depending on configuration and SCSI controller used. In some cases, performance issues may occur if resources are not allocated properly.
6. Setup and administration
- VMware vSphere Client: Virtual disk management is often done through the vSphere Client or other VMware management tools, where virtual disks can be created, configured, and customized.
- Virtual SCSI Controller: The virtual SCSI controller is selected and configured in the VM settings. VMware offers various controller options such as LSI Logic, LSI Logic SAS and VMware Paravirtual.
- Disk Types: During configuration, different types of virtual disks can be selected, e.g. Thin Provisioned or Thick Provisioned.
Overall, the VMware Virtual Disk SCSI Disk Device driver provides a powerful and flexible method for deploying and managing virtual disks within VMware environments. Choosing the right SCSI controller and carefully managing the virtual disks are critical for optimal performance and reliability.
---
VMware Virtual disk SCSI Disk Device and the compatible operating systems
Windows Server 2025, 2022, 2019, 2016, ... or 2008 and higher
Windows 12, 11, 10 or Windows 7 and higher
Linux (various distributions)
macOS (from version 10.6)
Please note that the exact functions and areas of application may vary depending on the firmware version and configuration of VMware Virtual disk SCSI Disk Device.
The VMware Virtual disk SCSI Disk Device is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the VMware Virtual disk SCSI Disk Device regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.