JMCR SD SCSI Disk Device
User Benchmarks

ModelTypeScoreSeq.
Read
MB
Seq.
Write
MB
Read
4k64QD
Write
4k64QD
Read
Access
msek.
Write
Access
msek.
JMCR SD SCSI Disk Device6420284679.012.670.491.66
JMCR SD SCSI Disk Device3219990769.954.340.461.22
JMCR SD SCSI Disk Device16196876113.435.210.350.91
JMCR SD SCSI Disk Device6413986217.451.840.672.06
JMCR SD SCSI Disk Device161017836.900.960.6416.92
JMCR SD SCSI Disk Device649837358.652.970.501.55
JMCR SD SCSI Disk Device168056146.630.480.532.29
JMCR SD SCSI Disk Device327443126.882.080.843.31
JMCR SD SCSI Disk Device16654368.091.540.622.91
JMCR SD SCSI Disk Device16613785.731.031.022.53
JMCR SD SCSI Disk Device85623224.410.370.872.44
JMCR SD SCSI Disk Device165122153.530.561.306.60
JMCR SD SCSI Disk Device165123134.260.641.254.95
JMCR SD SCSI Disk Device84822147.210.010.66963.99
JMCR SD SCSI Disk Device314721146.431.360.793.45
JMCR SD SCSI Disk Device314721146.431.360.793.45
JMCR SD SCSI Disk Device314721146.431.360.793.45
JMCR SD SCSI Disk Device164119107.180.030.58194.83
JMCR SD SCSI Disk Device17412267.150.010.56538.10
JMCR SD SCSI Disk Device62402176.090.670.803.13
JMCR SD SCSI Disk Device32402365.550.010.77774.14
JMCR SD SCSI Disk Device163919104.710.031.03174.62
JMCR SD SCSI Disk Device8382336.470.420.7018.02
JMCR SD SCSI Disk Device62352136.880.01
JMCR SD SCSI Disk Device16332222.830.011.641152.50
JMCR SD SCSI Disk Device34331927.360.010.58853.51
JMCR SD SCSI Disk Device1074321586.590.00
JMCR SD SCSI Disk Device34321917.430.010.59844.36
JMCR SD SCSI Disk Device4311682.410.011.94323.33
JMCR SD SCSI Disk Device67302012.460.011.57697.90
JMCR SD SCSI Disk Device4261641.040.843.436.67
JMCR SD SCSI Disk Device62251631.020.593.516.81
JMCR SD SCSI Disk Device16252230.000.00
JMCR SD SCSI Disk Device16191170.000.00
JMCR SD SCSI Disk Device678332.280.011.861312.82
JMCR SD SCSI Disk Device165000.000.00
JMCR SD SCSI Disk Device40000.000.00
SSD HEORIADY HX-001 D 256 // FUJITSU MHZ2160BH USB Devic // Intenso portable SSD USB Devic // Crucial CT250MX200SSD // HS-SSD-Q2000 1000 // CF128G // SAMSUNG HM320I // Corsair Force LE SS
The measurement of the JMCR SD SCSI Disk Device was carried out on Windows. Similar read and write speeds could certainly be achieved with the JMCR SD SCSI Disk Device under Linux and MacOS. Of course, the correct hard drive driver should be installed and the correct interface for the JMCR SD SCSI Disk Device should be used.
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The JMCR SD SCSI Disk Device is a typical example of a SCSI hard disk (Small Computer System Interface) used in older or specialized systems. The exact details may vary depending on the model, but in general SCSI hard disks refer to an interface that became popular in the 1980s and was used in many different computers and servers. Here are the detailed specifications, features, and application areas of a typical SCSI hard disk like the JMCR SD:

Technical details


- Model Number: JMCR SD (model numbers may vary)
- Capacity: Varies depending on model, from a few GB to several hundred GB.
- Form factor: Often 3.5 inches or 5.25 inches, depending on the model and design.
- Interface: SCSI (Small Computer System Interface)
- Typical SCSI versions: SCSI-1, SCSI-2 (Fast SCSI, Wide SCSI), SCSI-3
- Rotation speed: Can vary, often between 3,600 and 15,000 rpm.
- Cache: Varies by model, often between 512 KB and 16 MB.
- Data transfer rate: Depends on SCSI version and model; typically 5 MB/s to 80 MB/s.
- Average access time: Typically between 5 ms and 15 ms.
- Operating temperature: 5°C to 55°C (may vary depending on model).
- Humidity: 5% to 95% (without condensation).
- Dimensions: Varies by model and form factor.

Main features


1. High performance

SCSI hard drives were known for their high performance in terms of access speed and data transfer rate, especially when compared to older ATA hard drives. The rotation speeds of 10,000 to 15,000 RPM provide fast access capabilities for professional and server-based applications.

2. Multitasking skills

SCSI supports multitasking and allows simultaneous access to multiple disks from the same controller. This is particularly useful in server environments and with large databases.

3. Hot swapping

Some SCSI systems support hot swapping, which means that hard disks can be changed while the system is running without shutting down the system. This is especially important for servers and storage systems that require high availability.

4. Reliability and robustness

SCSI hard drives are often more robust and designed for long operating times in professional environments. This makes them ideal for critical applications and servers that are continuously running.

Areas of application


1. Server environments

SCSI hard drives are particularly well suited for server and database applications where high performance and reliability are required. The ability to support hot swapping makes them ideal for use in data centers.

2. Workstations

In high-performance workstations used for computationally intensive tasks such as video editing or scientific computing, SCSI hard drives offer high performance and reliability.

3. Enterprise Storage Systems

In enterprise storage systems, SCSI hard drives are often used in large arrays to ensure high data availability and performance.

4. Legacy systems

In older computer systems that still use SCSI interfaces, these hard drives can still be used to expand or replace existing systems.

Comparison with other technologies


- SATA Hard Drives: Compared to SCSI hard drives, modern SATA hard drives offer a more cost-effective solution with comparable performance for many applications. However, SCSI often offers better support for hot swapping and multitasking.

- SAS Hard Drives: Serial Attached SCSI (SAS) is the newer evolution of SCSI and offers faster speeds and improved features, but SCSI remains relevant in many older systems.

- SSD: Solid-state drives (SSDs) offer much higher performance than SCSI hard drives, especially for random reads and writes. However, they are typically more expensive.

Advantages and disadvantages


Advantages:

- High performance: Fast data transfer rates and access times.
- Multitasking capabilities: Supports multiple devices and simultaneous operations.
- Reliability: Robust construction for use in professional environments.
- Hot Swapping: Allows you to swap hard drives without shutting down the system (if supported).

Disadvantages:

- Cost: SCSI hard drives can be more expensive than modern SATA or IDE drives.
- Old technology: Many modern systems no longer use SCSI, which can limit availability and compatibility.
- Complexity: Setting up and managing SCSI environments can be more complex than newer interfaces.

Conclusion


The JMCR SD SCSI Disk Device is a solid choice for specialized applications and legacy systems that require SCSI. It offers high performance and reliability for servers and workstations, although it may be less attractive compared to newer technologies such as SSDs and SAS hard drives. For legacy systems or specialized applications that still require SCSI technology, it represents a valuable resource.
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JMCR SD 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 JMCR SD SCSI Disk Device.

The JMCR SD SCSI Disk Device is a reliable disk in case of problems, failures, file loss and other errors, check the drivers of the JMCR SD SCSI Disk Device regardless of whether it is under Windows 12, 11, 10, etc. or Linux and Apples macOS.




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