You may create and store your own RAID configurations The syntax of those files is similar to that of the XML language. They are stored in an .xml file specified on the R‑Studio Settings .

A number of file examples are shown on the Description Files for RAID Configurations topic.

There are two types of such description files: for RAID presets and custom-created RAID layouts.

RAID preset configuration file

<?xml version="1.0" encoding="UTF-8"?>

<RAIDList version="1">

    <RAID blockSize="65536" name="RAID5" rows="3" type="5" order="2" parityDelay="1">

        <Parents>

            <Parent comp="RAID5Disk1.dsk" name="Promise1+0 JBOD1.10" size="40060321792" order="1"/>

            <Parent comp="RAID5Disk2.dsk" name="Promise1+0 JBOD1.10" size="40060321792" order="2"/>

            <Parent comp="RAID5Disk3.dsk" name="Promise1+0 JBOD1.10" size="40060321792" order="3"/>

        </Parents>

    </RAID>

</RAIDList>

 

Custom-created RAID configuration file example

<?xml version="1.0" encoding="UTF-8"?>

<RAIDList version="1">

    <RAID blockSize="65536" name="RAID6Complex" rows="6" type="256">

        <Parents>

            <Parent name="img1.bin" size="941359104" order="1"/>

            <Parent name="img2.bin" fs="NTFS" size="941359104" order="2"/>

            <Parent name="img3.bin" size="941359104" order="3"/>

            <Parent name="img4.bin" size="941359104" order="4"/>

            <Parent name="img5.bin" size="941359104" order="5"/>

        </Parents>

        <Table>

            <Block id="A1">ReedSolomon</Block>

            <Block id="B1">1</Block>

            <Block id="C1">2</Block>

            <Block id="D1">3</Block>

            <Block id="E1">XorOfData</Block>

            <Block id="A2">4</Block>

            <Block id="B2">5</Block>

            <Block id="C2">6</Block>

            <Block id="D2">XorOfData</Block>

            <Block id="E2">ReedSolomon</Block>

            <Block id="A3">8</Block>

            <Block id="B3">9</Block>

            <Block id="C3">XorOfData</Block>

            <Block id="D3">ReedSolomon</Block>

            <Block id="E3">7</Block>

            <Block id="A4">12</Block>

            <Block id="B4">XorOfData</Block>

            <Block id="C4">ReedSolomon</Block>

            <Block id="D4">10</Block>

            <Block id="E4">11</Block>

            <Block id="A5">XorOfData</Block>

            <Block id="B5">ReedSolomon</Block>

            <Block id="C5">13</Block>

            <Block id="D5">14</Block>

            <Block id="E5">15</Block>

            <Block id="A6" sequence="1">XorOfAll</Block>

            <Block id="B6" sequence="2">XorOfAll</Block>

            <Block id="C6" sequence="3">XorOfAll</Block>

            <Block id="D6" sequence="4">XorOfAll</Block>

            <Block id="E6" sequence="5">XorOfAll</Block>

        </Table>

        <Sequences>

            <Sequence id="1">A1 A2 A3 A4 A5 A6</Sequence>

            <Sequence id="2">B1 B2 B3 B4 B5 B6</Sequence>

            <Sequence id="3">C1 C2 C3 C4 C5 C6</Sequence>

            <Sequence id="4">D1 D2 D3 D4 D5 D6</Sequence>

            <Sequence id="5">E1 E2 E3 E4 E5 E6</Sequence>

        </Sequences>

    </RAID>

</RAIDList>

File structure

File header

The file starts with a standard  XML header:

<?xml version="1.0" encoding="utf-8"?>

Section RAIDList

< RAIDList >

It can contain any number of the <RAID> sections and requires a closing element </FileTypeList>.

Section structure example:

  <RAIDList>

    <RAID [attributes]>

      ...

    </RAID>

    ...

    <RAID [attributes]>

      ...

    </RAID>

Section RAID

This section describes each RAID layout.

It must contain at least one <Table> and <Parents> sections and can contain one block <Sequences> ..

<RAIDList version="1">

    <RAID blockSize="65536" name="RAID5" rows="3" type="5" order="2" parityDelay="1">

        <Parents>

            

        </Parents>

        <Table>

 

        </Table>

        <Sequences>

 

        </Sequences>

    </RAID>

</RAIDList>

Attributes :

Section structure example:

<RAID blockSize="65536" rows="6" type="256">

        <Parents>

 

        </Parents>

 

        <Table>

 

        </Table>

        <Sequences>

 

        </Sequences>

    </RAID>

Section Parents

This section describes the RAID parents. It contains the <Parent> elements of the RAID.

Section structure example:

        <Parents>

            <Parent comp="RAID5Disk1.dsk" name="Promise1+0 JBOD1.10" size="40060321792" order="1"/>

            <Parent comp="RAID5Disk2.dsk" name="Promise1+0 JBOD1.10" size="40060321792" order="2"/>

            <Parent comp="RAID5Disk3.dsk" name="Promise1+0 JBOD1.10" size="40060321792" order="3"/>

        </Parents>

Element Parent

The element specifies the parent of the RAID.

Attributes :

Section Table

This section describes the RAID layout table. It contains the <Block> elements which number is a product of two attributes in the <RAID> section: <parents> x <rows> .

Section structure example:

  <RAIDList>

    <RAID name="example" parents="2" rows="2" blocksize=" 16777216 ">

      <Table>

        <Block [attributes]> ... </Block>

        <Block [attributes]> ... </Block>

        <Block [attributes]> ... </Block>

        <Block [attributes]> ... </Block>

      </Table>

    </RAID>

  </RAIDList>

Element Block

The element specifies the block number in the RAID layout table (a positive integer number) or an error correction block of the following types:

• PD or ParityOfData

• PA or ParityOfAll

• RS or ReedSolomon

• U or Unknown

• I or Ignore

Any other value is treated as Unknown .

Attributes :

Section Sequences

This section describes the non-default data checksum sequences used to preserve data integrity. It is not necessary to explicitly list default sequences (the table rows). Sequences can contain any number of the <Sequence> elements.

Section structure example:

  <RAIDList>

    <RAID name="example" parents="4" rows="4" blocksize=" 16777216 ">

     <Parents>

     

     </Parents>

      <Table>

        ...

      </Table>

      <Sequences>

        <Sequence [attributes]> ... </Sequence>

        ...

        <Sequence [attributes]> ... </Sequence>

      </Sequences>

    </RAID>

  </RAIDList>

Element Sequence

The element contains the list of the RAID blocks belonging to that sequence. The elements are separated by a space .

Attributes :

Element example:

See the RAID configuration file example .

 

Comments

<!-- Comment string -->

An XML standard string for a comment.