Alexander D Mittell

20100262585, Oct 14, 2010

Apr 12, 2010

12/758326

JAMES ROSIKIEWICZ - Stockton NJ, US
Calab Kelleran Shay - Bushkill PA, US
Ronald T. McKelvey - Morris Plains NJ, US
Alexander D. Mittell - Cedar Knolls NJ, US

PHD Virtual Technologies - Mount Arlington NJ

G06F 17/30

707679, 707E1701

Disclosed is a method and system for selectively restoring file-level data from a disk image backup. In embodiments, a virtual machine backup may be performed by dividing a virtual machine virtual disk file into a plurality of discrete fixed-sized data blocks sharing a common index file that is stored on a backup medium, such as a hard drive, to form a backup set. The index file is referenced to determine which fixed-sized block contains volume information, such as a partition table, of the backed-up virtual machine file. The individual blocks are processed as a virtual filesystem which is presented to an access module, which traverses the filesystem and provide access to individual files in the image backup to a client process, the restore files may be delivered to the client in a container file, which may be compressed to increase transfer speed. The container file may include executable instructions for automatically restoring the files to a desired location.

20100262586, Oct 14, 2010

Apr 12, 2010

12/758371

JAMES ROSIKIEWICZ - Stockton NJ, US
Ronald T. McKelvey - Morris Planis NJ, US
Alexander D. Mittell - Cedar Knolls NJ, US

PHD Virtual Technologies - Mount Arlington NJ

G06F 17/30

707679, 707E17007

Disclosed is a method and system for selectively restoring file-level data from a disk image backup. In embodiments, a virtual machine backup may be performed by dividing a virtual machine virtual disk file into a plurality of discrete fixed-sized data blocks sharing a common index file that is stored on a backup medium, such as a hard drive, to form a backup set. Upon restoration of data from the backup set, individual blocks of the data set are compared to corresponding blocks of the target virtual machine file. Redundant data and unchanged blocks are skipped, and only those block which have changed are restored to the target file. In this manner network bandwidth and processor resources are conserved, and replication times decreased.

20100262797, Oct 14, 2010

Apr 12, 2010

12/758245

JAMES ROSIKIEWICZ - Stockton NJ, US
RONALD T. McKELVEY - Morris Plains NJ, US
ALEXANDER D. MITTELL - Cedar Knolls NJ, US

PHD Virtual Technologies - Mount Arlington NJ

G06F 12/16
G06F 12/00
G06F 17/00

711162, 707640, 713165, 711E12001, 711E12103, 707E17007, 707E1701

Disclosed is a method and system for efficiently backing up a virtual machine file. A virtual machine file is logically divided into a plurality of fixed-size blocks of similar size, for example, a number of 1 MB data blocks. An MD5 hash value is generated from the contents of each block. Each block is written to a file having a filename that includes a filesystem-compliant form (e.g., hexadecimal form) of the computed MD5 hash value. A backup device includes a directory hierarchy having a plurality of first-level directories corresponding to the first two bytes of the hash value, and a plurality of second-level directories corresponding to the next two bytes of the hash value. The blocks are uniquely stored in the directory corresponding to the byte value pairs of the hash. The present disclosure provides data integrity checking and reduces storage requirements for duplicative, redundant, or null data.

20120221529, Aug 30, 2012

Mar 7, 2012

13/414119

James Rosikiewicz - Stockton NJ, US
Ronald T. McKelvey - Morris Plains NJ, US
Alexander D. Mittell - Cedar Knolls NJ, US

PHD Virtual Technologies - Philadelphia PA

G06F 7/00
G06F 17/30

707679, 707E1701, 707E17007

Disclosed is a method and system for selectively restoring file-level data from a disk image backup. In embodiments, a virtual machine backup may be performed by dividing a virtual machine virtual disk file into a plurality of discrete fixed-sized data blocks sharing a common index file that is stored on a backup medium, such as a hard drive, to form a backup set. Upon restoration of data from the backup set, individual blocks of the data set are compared to corresponding blocks of the target virtual machine fide. Redundant data and unchanged blocks are skipped, and only those block which have changed are restored to the target file. In this manner network bandwidth and processor resources are conserved, and replication times decreased.

20140201156, Jul 17, 2014

Mar 17, 2014

14/215192

- Philadelphia PA, US
Calab K. Shay - Bushkill PA, US
Ronald T. McKelvey - Morris Plains NJ, US
Alexander D. Mittell - Cedar Knolls NJ, US

PHD VIRTUAL TECHNOLOGIES - Philadelphia PA

G06F 11/14

707651

Disclosed is a method and system for selectively restoring file-level data from a disk image backup. In embodiments, a virtual machine backup may be performed by dividing a virtual machine virtual disk file into a plurality of discrete fixed-sized data blocks sharing a common index file that is stored on a backup medium, such as a hard drive, to form a backup set. The index file is referenced to determine which fixed-sized block contains volume information, such as a partition table, of the backed-up virtual machine file. The individual blocks are processed as a virtual filesystem which is mounted and presented to an access module, which traverses the filesystem and provide access to individual files in the image backup to a client process. The restore files may be delivered to the client in a container file, which may be compressed to increase transfer speed. The container file may include executable instructions for automatically restoring the files to a desired location.