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Thread: Fastest Raid: Windows or Unix/Linux workstation

  1. #1
    Join Date
    Jul 2010
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    32

    Fastest Raid: Windows or Unix/Linux workstation

    I am here to get some needful help from you members. I want to know where the Raid can be fastest? I want to say that it would be fast in Windows operating system or Unix/Linux workstation? RAID is not intended to be a technique of increasing drive speed unless you are using RAID 0 which should be circumvented as there is no redundancy. Most RAID configurations in reality slow things down, as stuff has to be written twice. So I want to know which operating system would be suitable for it? I hope that you members will help me soon.

  2. #2
    Join Date
    Apr 2009
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    90

    Re: Fastest Raid: Windows or Unix/Linux workstation

    These operating systems are working very hard to swap files. At high load, how many User-I/Os on the hard drive needs to be done very often, access to the swap file, which can affect the performance and response times of the hard disk. With the use of a cache controller, the data throughput can be improved significantly to the hard drive in such cases. Normally installed 64-256 MB RAM. Consideration should be the use of two independent drives, one as a boot drive with the swap file and one for user data. This completely decouples the accesses to the swap file from the access to user data, thereby increasing the throughput still further.

  3. #3
    Join Date
    Feb 2009
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    81

    Re: Fastest Raid: Windows or Unix/Linux workstation

    Since this system has no redundancy, the drives are not mounted in hot-plug slots. To terminate the SCSI bus, the terminators must be enabled on the controller and the last hard drive. If an older CD / DVD-ROM is connected to the controller, it should not be used to terminate, that is, not at the end of the SCSI cable to be placed. Since Standard-CD/DVD-Drives are relatively slow SCSI devices, they have only passive SCSI terminators and can not therefore be used to terminate Ultra SCSI systems.

  4. #4
    Join Date
    Jan 2009
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    41

    Re: Fastest Raid: Windows or Unix/Linux workstation

    For video or DTP workstations, where large files are stored on a hard drive, speed is more important than safety. The writing of large files of sequential data transfer means, the configuration can be accelerated by striping (RAID 0). A powerful solution is store it would be this big a RAID 0 system with appropriate storage of files (two disks in a striped dressing combined), plus a small efficient hard drive as a boot drive and for the swap and program files providing. This in turn decouples the system accesses the data access. Because RAID 0 no fault-tolerant and does not support the form of hot plug the hard drives can easily be built into the workstation.

  5. #5
    Join Date
    Apr 2009
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    79

    Re: Fastest Raid: Windows or Unix/Linux workstation

    A server core security. For smaller systems (solution is a mirrored RAID 1) best suited. Whenever the amount of memory needed can be realized by a single hard disk, you should consider a RAID 1 system into consideration. A 1-channel controller is very cost effective solution is one where the mirrored disk SCSI channel connected to be the same. A 2-channel mirror controller provides more data throughput and redundancy, because it will be mirrored disks connected to different SCSI channels. The two disks can be addressed simultaneously by the controller, which increases the data throughput. Should turn out a complete SCSI channel, for example, by cable problems, failure of a terminator, or because the channel is blocked by a faulty SCSI device, the other SCSI channel is still available and continue operating. All data are therefore still available. The great advantage of the hardware compared to software mirroring solutions that hardware mirroring copies each byte of the first to the second hard drive that is 100 percent redundancy.

  6. #6
    Join Date
    Apr 2009
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    107

    Re: Fastest Raid: Windows or Unix/Linux workstation

    Hardware mirroring also supports hot-spare hard drives (spares, used in the event of a disk failure), Hot Plug and even hot-plug to replace a failed hard drive during operation without shutting down the operating system. Ultimately produces hardware mirroring, no additional load on the system, not even running when a data matching on the two hard drives. The hard drives are usually built in drawers in the exchange server to allow a hot plug. To make the exchange a defective hard disk as easily as possible, separate internal, active terminators are used. Tape drives or optical drives can be connected to the controller. Alternatively, you can also use a separate, low-cost SCSI adapter. The connection of these slower SCSI devices to a separate SCSI adapter relieves the SCSI channels of the RAID controller from the slow data transfer of these devices.

  7. #7
    Join Date
    May 2008
    Posts
    248

    Re: Fastest Raid: Windows or Unix/Linux workstation

    Operating systems like Windows or Unix work very hard with the swap file to by virtual RAM to expand the memory. Under high load is very much needed RAM, which means that the swap file is used very intensively. These storage requests can slow down the work by the users, when all data are stored the same drive, and regardless of whether a single hard disk or RAID system. In this situation, the read / write disks between the permanent swap file and user data back and forth. While these head movements will be no data transfer. This problem can be circumvented by the swap file and user data are stored separately. An array with two drives configured as a mirrored boot / swap drive and another used for user data. Four drives are installed in the system but the operating system recognizes them as two logical drives. A 1-channel RAID controller supports an economic start, a 2-channel RAID controller enables higher data throughput and provides redundant SCSI channels.

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