Raid

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Been asked many times before – please – I did look for the search facility, could not find one!

What performance increase would adding two hard drives in a mirror (stripe???) raid configuration give me? Appreciate just two drives will not give data redundancy but my backup strategy seems OK (they all say that until it is needed). Still get confused between mirroring and striping – simple explanation would be much appreciated.

Thanks,

Simon

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Simon.
Drive Striping
A technique for spreading data over multiple disk drives. Disk striping can speed up operations that retrieve data from disk storage. The computer system breaks a body of data into units and spreads these units across the available disks. Systems that implement disk striping generally allow the user to select the data unit size or stripe width.
Disk striping is available in two types. Single user striping uses relatively large data units, and improves performance on a single-user workstation by allowing parallel transfers from different disks. Multi-user striping uses smaller data units and improves performance in a multi-user environment by allowing simultaneous (or overlapping) read operations on multiple disk drives.
Disk striping stores each data unit in only one place and does not offer protection from disk failure

Mirroring is simply making a mirror image of one drive on another. Backing up, storage of data, etc.

Bob

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Simon.
Drive Striping
A technique for spreading data over multiple disk drives. Disk striping can speed up operations that retrieve data from disk storage. The computer system breaks a body of data into units and spreads these units across the available disks. Systems that implement disk striping generally allow the user to select the data unit size or stripe width.
Disk striping is available in two types. Single user striping uses relatively large data units, and improves performance on a single-user workstation by allowing parallel transfers from different disks. Multi-user striping uses smaller data units and improves performance in a multi-user environment by allowing simultaneous (or overlapping) read operations on multiple disk drives.
Disk striping stores each data unit in only one place and does not offer protection from disk failure

Mirroring is simply making a mirror image of one drive on another. Backing up, storage of data, etc.

Bob

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This page might help: http://www.dell.com/us/en/gen/learnmore/le…mmendations.htm%5B/url%5D

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Thanks,

It explains a lot

Simon

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Thanks,

It explains a lot

Simon

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This page might help: http://www.dell.com/us/en/gen/learnmore/le…mmendations.htm%5B/url%5D

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