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Thread: Jbod Vs Raid0

  1. #17
    Join Date
    Mar 2007
    0 times in 0 posts
    Plumped for a single 500gb T7k500 in the end, 1tb prices (in terms of price per gb) will be low in 18months time, hopefully with 3 platters, so this will do for now.

  2. #18
    Join Date
    Sep 2006
    0 times in 0 posts
    My dear friend,
    Be aware of using the new hard disk drives that are in excess of 320Gb, they are not fully tested. This advise comes from a technician in a data recovery Laboratory!! we are in the mid of hardware world, we know the pros & againsts. Often our opinion differs/contradicts to that of the software/IT consultans.

    With the blessings of big size drives 400GB & 500GB , we have so far had an increase of approximately 18% in our revenues!!

    If the RAID is your choice of option, I would make sure the drives are SATA or SCSI, for a simple reason the IDEs were originally designed for casual "domestic" use. With SATA & SCSI ( Hitachi or IBM only- avoid anything else) you will have the robustness against physical damage, yet it does not mean the drives are imune to any problems!
    The second advice is to mirror the RAID so that you have another image of the data. Perhaps even take a back up of the entire system on a external drives, to provide maximum protection.
    So avoid using the big capacity drives. Also I can invite you to read our advice on this matter on the lower part of our webpage on which basically states the following:

    External Drives Great for System Back Ups

    There are external hard drives designed to allow users to back up their data with the push of a button. Users can schedule backups and do basic restores of data. Some external hard drives have a backup button that lights up when first used, then fades out when the backup is completed. There are also external hard drives which back up all of the data on the drive when first used, then update the backup with new files or changes that are made to the stored data.

    External Hard Disk Drives provide great flexible storage option and security by providing a mobile backup option.

    With storage capacity running in hundreds of Gigabites, with high rates of data transfer, in addition to the flexibility to plug the external drive to a Laptop, Desktop, Server, Camera or ipod and sold at reasonable prices have increased their popularity dramatically.

    However, as the popularity of the external drives containing backups and valuable data are increasingly failing for no apparent reasons. Majority of these failing drives are often of well known commercial brands such as Lacie, Freecom and Omega and with the latest high capacity Maxtor, Seagate or Western Digital hard disk drives models with storage capacity exceeding 320Gb or even 400Gb on a single drive.

    The given hard disk drive Models are the cheapest, not fully tested with such hi capacity and worse brands available

    Generally, inside the slick casings, often are poorly ventilated or even not ventilated at all, external hard drives assemblers include the cheapest available drives. If this set up is combined with badly ventilated casing, the combination is catastrophic for any given user, especially when the hard disk drive is of high capacity containing crucial back-up data.

    For any given Lacie with multiple drives, this can be a terrible experience with RAID drives and data in excess of 1 terabite. Often with RAID array external drives, the drive failure are more frequent and the damage is more extensive than single drives. Many of the 1 terabyte LaCie external drives contain 250Gb Maxtor IDE in RAID array, inside casing, so badly ventilated, that if they are used regularly, especially within office environment, they are utterly disastrous.

    Hitachi has unveiled a drive which has reached the new heights of one terabyte (TB). Its drive looks like any other, but uses perpendicular magnetic recording to make space for all that data.

    The current technology generation of LRT-Longitudinal Recording Technology, which records the bits laying horizontally, has been superseded by the recording of the bits standing vertically.
    Last edited by UniRecovery; 21-03-2007 at 03:22 PM.
    "I have put my genius into my life, whereas all I have put into my work is my talent-Oscar Wild - UniRecovery Data Recovery Specialists."

  3. #19
    0-0 -^

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