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Hot hot (hot-plugging or Hot Swap) or hot plug, hot swap function is not shut down the system allows the user to not cut off the power supply removal and replacement of damaged cases, hard drive, power supply or board card and other components, thereby improving the system in time of disaster recovery capabilities, scalability and flexibility, for example, disk mirroring for high-end applications, the system can provide disk hot plug. Specific academic argument is used: hot-swap (Hot replacement), hot-add (hot expansion) and heat upgrades (hot upgrade),

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Features Support Work motherboard bus electrical characteristics BIOS operating system, device drivers support hot-swappable hardware design features first appeared in the server space, is to increase the server made use of, and in we usually have to use general computer USB interface, this interface Tiffany Watches will be able to achieve thermal plug. If there is no hot-swap capability, even if the disk will not cause damage to the loss of data, users still need to temporarily shut down the system to be able to replace the hard disk, and simply use the hot swap switch or turn the handle to open connections can be directly removed hard drive, while the system is still running without interruption. Technical suppor t needed to achieve hot-swap support in the following areas: electrical characteristics of the bus, the motherboard BIOS, operating system and device drivers. Just make sure the environment we meet these specific environment, you can achieve hot. Part of the current system bus supports hot swap technology, especially from the 586 era, have increased system bus external bus expansion, so our concerns in Tiffany Bracelet this area can be eliminated. Since 1997, the new BIOS added support for plug and play, although this does not mean completely plug and play support for hot-plug support, only support hot-add and hot replace, but it is our Most of the techniques used in hot, so the motherboard BIOS the problem can be Tiffany Engagement Rings overcome. In the operating system, from the start began to support Windows95 Plug and Play, hot-plug support is limited but, until NT 4.0, Microsoft NT operating system will begin to notice the field for the server, and this hot field a technology is critical, so the operating system to increase the full hot swap support, and this feature has been extended to the base NT technology, Windows 2000/XP operating system, so long as the use of more than NT4.0 operating systems, heat plug side to provide a complete operating system support. Driver, the current for Windows NT, Novell's Netware, SCO UNIX driver regarded integrated hot swap function in, simply select the driver for the above operating system to achieve hot-swappable elements tTiffany Pendants o have the last one. Generally speaking, a complete system, including hot hot hardware, hot-swappable software and operating systems, device drivers support hot plug and hot-swappable user interface. See below. We know that in ordinary computer, USB (Universal Serial Bus) interface device and the IEEE 1394 interface device can be achieved so hot, but hot in the server components to achieve the main hard drive, CPU, memory, power , fan, PCI adapters, network cards and so on. Purchase of the server must pay attention to what components to achieve hot, which is critical to future work. Electrical characteristics of the working principle bus system bus to support part of the current hot technology, especially from the 586 era, have increased system bus external bus expansion, so our concerns in this area can be eliminated. Motherboard BIOS from 1997, the new BIOS added support for plug and play, although this does not mean completely plug and play support for hot-plug support, only support hot-add and hot replace, but We use the most hot-swap technology, so the motherboard BIOS the problem can be overcome. Operating system operating systems, starting from the beginning to support Plug and Play Windows95, but for hot-plug support is limited, until NT 4.0, Microsoft NT operating system will begin to notice the field for the server, and this area of heat Plug a technology is critical, so the operating system to increase the full hot swap support, and this feature haTiffany Charms s beenTiffany Rings extended to the base NT technology, Windows 2000/XP operating system, so as long as the operating system to use more than NT4.0 , hot side operating system to provide comprehensive support. Device drivers drive, the current for Windows NT, Novell's Netware, SCO UNIX drivers regard the hot swap function integration into it, just select the drive for more than the operating system to achieve hot-swap the last element to possess. Generally speaking, a complete system, including hot hot hardware, hot-swappable software and operating systems, device drivers support hot plug and hot-swappable user interface. Support hardware We know that in ordinary computer, USB (Universal Serial Bus) interface device and the IEEE 1394 interface device can be achieved so hot, but hot in the server components to achieve the main hard drive, CPU, memory , power supply, fan, PCI adapters, netwoTiffany Cufflinks rk cards and so on. Purchase of the server must pay attention to what components to achieve hot, which is critical to future work. Looking at the current market SATA motherboard provides attachment of the Serial ATA cable, SATA power cable in particular, mostly non-standard accessories. If there is no SATA power cable SATA 15 - pin power connector interface, Serial ATA hard drive will not carry out hot-plug functions. Even though some SATA hard drives SATTiffany Necklaces A 15 pin power supply also provides interfaces and IDETiffany Sets 1x4-pin conventional power connector, you can clear the IDE 1x4-pin conventional power connector can not support hot swap, forced action will cause the hard drive damage and data loss, ASRock offers hot-swappable SATA hard drives that can support the function of the technology, and a motherboard with a SATA which offers a 7 - pin SATA data cable and a SATA 15 - pin SATA power connector interface, the power cord. Hot-swap circuit design circuit design is widely used, the role of the device is hot-pluggable components, chips, a protective measure. The signal is usually used to isolate hot buffered by 244,245, and other devices to deal with. And an increase in the input signal current limiting resistor and 0.1uF filtering capacitors, the output signal is usually directly from the output to 244,245. Also, in addition to the buffer had isolated, the signal for the PCI interface, and often need to control their power, which is hot-plug PCI bus technology. Common hard drive hot-plug hard disk heads dTiffany Accessories o not have previous auto-stop function, the power on the head is homing head. Otherwise, it is possible because the disc an instant too late to stop homing head turn, causing the disc to be the head, And now the hard drive, and only when reading data, the head will fly in the disc surface. The end of a read operation, homing head stops automatically and immediately. Meanwhile, the existing hard drives are power functions with time delay. That is, when the system suddenly lost power, the hard disk itself, the controller can automatically detect the change, and then stop the current read and write commands to force the head of enforcement and the normal homing head. This design greatly strengthened the hard power cuts in the Tiffany Jewelry accident under the safety factor. Therefore, the possibility of disc injury is extremely low. This does not mean there is no risk of hot-plug hard drives. Because the boot state hot plug hard drives, will have an instantaneous impact of current, past, we think that this is caused by damage to the hard disk hot plug the culprit. But in fact, hard power interface circuit of this instantaneous current change in the tolerance is relatively large, most of the time will not lead to the drive circuit board was burned. The real danger comes from the hard drive data cable! In the charged state, plug hard drive data cable, data line will produce an abnormal transient current and voltage drop, resulting in more precise control of the chip is burned, this is the real Therefore, if we can plug the power cord to ensure the correct order and data lines, the On the contrary, first pull the power cord, then pull the data line. This hot-swappable hard disk is not fantasy! Should thank Microsoft! Its hardware to Windows operating system, disabling features real-time online identification and done so perfectly, only to drive hot swap and plug and play possible. First of all, Windows systems can bypass the system BIOS settings, self-management of all hardware, this is the first element of plug and play hard. In addition, in the Windows Device Manager the When the drive is inserted in the boot state of the system, run the scan detection, can make the new drive by the operating system to recognize and properly use. The hard drive in the boot state, pulled out before, because Windows will automatically monitor and write data to the hard drive, so you must first uninstall the device, so that the operating system to stop all operations on the hard drive, then you can safely unplug the hard drive the. To verify the above observatTiffany Earrings ions, the author personally operating a moment, the following are the steps: the hard drive jumper set to CS (Cable Select, cable select) state, plug in hard drive data and power cables, in the Device Manager of the Scan for hardware changes the menu to complete, the new hard drive that can begin normal operation. Hot drawing is similar steps, the first in the Device Manager, locate the drive select At this point, remove the hard disk was completely hot. Because it is hot plug, instantaneous current and voltage changes, may lead to system crashes, but the hot-plug hard drives long-term operation verified by the author had never led to the hard disk burned. But this, after all, unconventional methods to install and use the hard disk, hard drive hot swap and plug and play there is the possibility, but the average user it is best not easily imitate. General peripherals, such as floppy, CD-ROM or hard disk can use hot-swappable, plug in the installation of data lines to remember first, then plug the power cord when removing the contrary, as long as you pay attention to the steps correctly, can completely playing in the hot hands. However, should pay attention to the hard disk hot plug, be sure to use the same type of hard, because the model of your hard drive data is also stored in the motherboard's BIOS, this is not modified, while the floppy drive to not have this problem, you I can safely use hot. Atlas Atlas entry for more extended reading: 1

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