Red Hat VirtIO SCSI Disk Device
User Benchmarks
| Model | Type | Score | Seq. Read MB | Seq. Write MB | Read 4k64QD | Write 4k64QD | Read Access msek. | Write Access msek. |
| Red Hat VirtIO SCSI Disk Device | 43 | 17853 | 8848 | 5062 | 217.45 | 198.36 | 0.02 | 0.03 |
| Red Hat VirtIO SCSI Disk Device | 43 | 17346 | 8328 | 4865 | 207.58 | 199.79 | 0.02 | 0.02 |
| Red Hat VirtIO SCSI Disk Device | 43 | 17346 | 8328 | 4865 | 207.58 | 199.79 | 0.02 | 0.02 |
| Red Hat VirtIO SCSI Disk Device | 43 | 17346 | 8328 | 4865 | 207.58 | 199.79 | 0.02 | 0.02 |
| Red Hat VirtIO SCSI Disk Device | 322 | 8723 | 5470 | 1385 | 243.36 | 58.63 | 0.04 | 0.07 |
| Red Hat VirtIO SCSI Disk Device | 537 | 5794 | 2558 | 1953 | 40.00 | 40.01 | 0.13 | 0.15 |
| Red Hat VirtIO SCSI Disk Device | 866 | 4545 | 3065 | 381 | 72.73 | 62.23 | 0.10 | 0.12 |
| Red Hat VirtIO SCSI Disk Device | 21 | 2214 | 480 | 1085 | 138.10 | 180.01 | 0.17 | 0.10 |
| Red Hat VirtIO SCSI Disk Device | 215 | 82 | 56 | 9 | 18.69 | 3.11 | 11.37 | 63.58 |
| Red Hat VirtIO SCSI Disk Device | 107 | 0 | 0 | 0 | 0.00 | 0.00 |
The measurement of the Red Hat VirtIO SCSI Disk Device was carried out on Windows. Similar read and write speeds could certainly be achieved with the Red Hat VirtIO SCSI Disk Device under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the Red Hat VirtIO SCSI Disk Device should be used.
The Red Hat VirtIO SCSI Disk Device is a virtual storage device used in the Red Hat virtualization environment. It is part of VirtIO technology, which is designed to optimize the performance of virtual machines (VMs) in a virtualization environment. VirtIO is a standardized set of drivers and devices used by KVM (Kernel-based Virtual Machine) and other virtualization platforms to improve the efficiency and performance of virtual machines.
Technical details
1. VirtIO Standard:
- VirtIO is an open source driver framework that optimizes communication between virtual machines and the hypervisor (virtualization host). It minimizes the overhead costs associated with emulating hardware and enables direct interaction between the VM and the hypervisor.
2. SCSI protocol:
- The VirtIO SCSI Disk Device uses the SCSI (Small Computer System Interface) protocol, which is used for communication between computers and storage media. The SCSI protocol provides an efficient and flexible way to manage storage devices and allows access to various types of storage resources.
3. Driver:
- The VirtIO SCSI driver is available in various operating systems, including Linux and Windows. This driver allows the VM to communicate with the VirtIO SCSI Disk Device and ensures the correct management of the virtual disk within the VM.
4. Virtual Devices:
- VirtIO SCSI emulates a SCSI controller device that manages virtual disks and other storage media. The virtual disks connected to the VirtIO SCSI Disk Device appear as regular SCSI drives within the VM.
5. Performance:
- VirtIO SCSI offers improved performance and lower latency compared to traditional virtual disk systems based on IDE or SATA. The performance improvements result from the reduction of the overhead in the communication between the VM and the hypervisor.
Features
1. High performance:
- Provides significant performance improvements by minimizing overhead and providing direct access to the virtualization layer, resulting in better I/O performance and lower latency compared to traditional emulated storage devices.
2. Flexibility and scalability:
- Supports multiple virtual disks and allows dynamic addition or removal of drives within the VM. This is especially useful for scalable and customizable virtualization environments.
3. Hot-plug support:
- Allows adding and removing virtual SCSI drives while the VM is running without requiring a reboot.
4. Advanced features:
- Supports features such as thin provisioning, snapshot functionality and other modern storage features that are important for operation in virtual environments.
5. Compatibility:
- Compatible with a variety of operating systems and virtualization platforms that support VirtIO, ensuring wide applicability in various virtualization environments.
Areas of application
1. Virtualized environments:
- Ideal for use in virtualization environments where multiple virtual machines run on one physical host. VirtIO SCSI technology helps improve the performance and efficiency of virtual machines.
2. Cloud Computing:
- In cloud environments based on virtualization technologies, VirtIO SCSI can help optimize storage efficiency and performance.
3. Test and development environments:
- Useful for test and development environments where different configurations need to be tested and adjusted. The ability to flexibly manage virtual drives supports efficient testing.
4. High performance applications:
- For applications that have high I/O requirements, such as databases or big data analytics, VirtIO SCSI offers improved performance and lower latency.
5. Storage Area Networks (SANs):
- Can be used in SAN environments to provide virtual SCSI controllers for managing and accessing storage resources.
Advantages
- Improved Performance: Better performance is achieved by reducing overhead compared to traditionally emulated storage devices.
- Flexibility: Hot-plug support and the ability to manage multiple virtual disks increase VM configuration flexibility.
- Compatibility: Wide support across different platforms and operating systems, facilitating integration into different environments.
Disadvantages
- Complexity: Setting up and managing VirtIO SCSI can be more complex than traditional virtual storage devices, especially for less experienced users.
- Driver Dependency: Requires installation and configuration of the appropriate driver on the VM side, which may require additional steps in the setup.
The Red Hat VirtIO SCSI Disk Device therefore represents a powerful and flexible solution for managing virtual disks in virtualization environments and offers significant advantages in terms of performance and scalability.
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Red Hat VirtIO 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 Red Hat VirtIO SCSI Disk Device.
The Red Hat VirtIO SCSI Disk Device is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the Red Hat VirtIO SCSI Disk Device regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.