Exhibit 99.2
 
JOINT FILING AGREEMENT
 
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of Amendment No. 4 to the Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, $0.01 par value, of Quantum Corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
 
Dated:  July 29, 2014
 
STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD
By: Starboard Value LP,
       its investment manager
 
STARBOARD VALUE AND OPPORTUNITY S LLC
By: Starboard Value LP,
       its manager
 
STARBOARD VALUE AND OPPORTUNITY C LP
By: Starboard Value R LP,
       its general partner
 
STARBOARD VALUE R LP
By: Starboard Value R GP LLC,
       its general partner
 
  
STARBOARD VALUE LP
By: Starboard Value GP LLC,
       its general partner
 
STARBOARD VALUE GP LLC
By: Starboard Principal Co LP,
       its member
 
STARBOARD PRINCIPAL CO LP
By: Starboard Principal Co GP LLC,
       its general partner
 
STARBOARD PRINCIPAL CO GP LLC
 
STARBOARD VALUE R GP LLC

 
 
By:
/s/ Jeffrey C. Smith
 
Name:
Jeffrey C. Smith
 
Title:
Authorized Signatory

 
 
/s/ Jeffrey C. Smith
JEFFREY C. SMITH
Individually and as attorney-in-fact for Mark R. Mitchell and Peter A. Feld