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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001192482-05-000462.txt : 20051110
<SEC-HEADER>0001192482-05-000462.hdr.sgml : 20051110
<ACCEPTANCE-DATETIME>20051110165600
ACCESSION NUMBER:		0001192482-05-000462
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051102
FILED AS OF DATE:		20051110
DATE AS OF CHANGE:		20051110

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MTI TECHNOLOGY CORP
		CENTRAL INDEX KEY:			0000901696
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER STORAGE DEVICES [3572]
		IRS NUMBER:				953601802
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0403

	BUSINESS ADDRESS:	
		STREET 1:		14661 FRANKLIN AVENUE
		CITY:			TUSTIN
		STATE:			CA
		ZIP:			92780
		BUSINESS PHONE:		7144817800

	MAIL ADDRESS:	
		STREET 1:		14661 FRANKLIN AVENUE
		CITY:			TUSTIN
		STATE:			CA
		ZIP:			92780

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EMC CORP
		CENTRAL INDEX KEY:			0000790070
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER STORAGE DEVICES [3572]
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23418
		FILM NUMBER:		051194631

	BUSINESS ADDRESS:	
		STREET 1:		176 SOUTH STREET
		CITY:			HOPKINTON
		STATE:			MA
		ZIP:			01748-9103
		BUSINESS PHONE:		5084351000

	MAIL ADDRESS:	
		STREET 1:		176 SOUTH STREET
		CITY:			HOPKINTON
		STATE:			MA
		ZIP:			01748-9103
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-11-02</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000901696</issuerCik>
        <issuerName>MTI TECHNOLOGY CORP</issuerName>
        <issuerTradingSymbol>MTIC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000790070</rptOwnerCik>
            <rptOwnerName>EMC CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>176 SOUTH STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOPKINTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01748</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series A Convertible Preferred Shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.065</value>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-06-17</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1937046</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants to purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.10</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-12-20</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-06-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>433149</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series B Convertible Preferred Shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.2642</value>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-11-02</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3955070</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants to purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.26</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-11-02</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-11-02</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1483151</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each share of Series A Convertible Preferred Stock is convertible at any time.</footnote>
        <footnote id="F2">Through an investment made on June 17, 2004, each of the Series A Convertible Preferred shares were convertible into a number of shares of common stock equal to its stated value of $26.4645 per share (subject to adjustment) divided by the conversion price of $2.6465 per share (subject to adjustment).  As a result of the purchase of Series B Convertible Preferred Shares, each of the Series A Convertible Preferred shares now has a conversion price of $2.0650.</footnote>
        <footnote id="F3">Each share of Series B Convertible Preferred Stock is convertible at any time.</footnote>
        <footnote id="F4">Each of the Series B Convertible Preferred shares is convertible into a number of shares of common stock equal to its stated value of $12.6420 per share divided by the conversion price of $1.2642.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Paul T. Dacier, Senior Vice President and General Counsel</signatureName>
        <signatureDate>2005-11-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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