Abstract: A method is used in managing deduplication of data in storage systems. A candidate data object is identified for deduplicating a data object by evaluating digests stored in a current digest segment to determine whether another digest matching a digest associated with the data block is stored in the current digest segment. The current digest segment includes a set of digests associated with a set of data blocks previously received for deduplication. Based on the evaluation, a deduplicating technique is applied to the data object. The current digest segment is stored in an index table. A previous digest segment associated with a digest stored in the index table matches the digest associated with the data block is replaced by the current digest segment.

Abstract: A method is used in managing deduplication of data in storage systems. A candidate data object is identified for deduplicating a data object by evaluating digests stored in a current digest segment to determine whether another digest matching a digest associated with the data block is stored in the current digest segment. The current digest segment includes a set of digests associated with a set of data blocks previously received for deduplication. Based on the evaluation, a deduplicating technique is applied to the data object. The current digest segment is stored in an index table. A previous digest segment associated with a digest stored in the index table matches the digest associated with the data block is replaced by the current digest segment. A plurality of digest segments are organized into a segment group and a reference counter is associated with the segment group, wherein if the reference counter reaches zero, storage space consumed by the digest group is reclaimed.

Abstract: A method is used in managing deduplication of data in storage systems. A digest is determined for a data object received for deduplication. A candidate data object is identified for deduplicating the data object. A digest associated with the candidate data object matches the digest associated with the data object. The digest in a digest segment is maintained based on identification of the candidate data object. The digest segment includes a set of digests associated with a set of data blocks identified for deduplication in an ordered arrangement.

Abstract: A method is used in deduplicating sets of data blocks. A candidate data object is identified for deduplicating a data object. A digest associated with the candidate data object matches a digest associated with the data object. Digest information of a set of data objects is evaluated. The set of data objects are selected for evaluation based on an association between location of the set of data objects and location of the candidate data object. Based on the evaluation, a deduplicating technique is applied for deduplicating the data object.

Abstract: A polishing mixture and related method of polishing a material wafer surface, such as silicon carbide, are disclosed. The polishing mixture comprises; an abrasive and an oxidizer mixed in an acidic solution. Alumina may be used as the abrasive and the polishing mixture may have a pH less than or equal to seven (7).

Abstract: A float for a liquid level detection apparatus including a tube extendable through liquid in a tank. The float is a buoyant body slidably mounted about the tube and having a diameter passable through an aperture in the tank. The float is preferably formed of two separate bodies joined by spacers positioned to allow the body to pivot from a first position substantially axially in line with the tube for insertion and removal of the float with respect to the tank to a second position substantially perpendicular to the tube in operative floating engagement with the liquid surface in the tank. The spacers, in one embodiment, are in the form of pins arranged in pairs along opposite side edges of the two bodies and spaced apart along the length of the two bodies such that the innermost pins of the two pairs of pins define an aperture for mounting the bodies transversely about the tube in the second, floating position.

Abstract: An auxiliary or storm window is installed inside of a conventional prime window of diverse dimensions. Plastic extrusions are cut to size on the job and are fastened around the periphery of the inside of the window. The extrusions have slots which receive plastic panels. The panels form a closure for the inside of the window. Vertical and horizontal support members are installed between the sill and header and between the side flanges on large windows to accommodate a plurality of panels which make up the closure.

Abstract: An auxiliary or storm window is attached to the inside of window frames. Transparent acrylic panels having lengths which exceed the transverse dimension of the frames and widths which are less than the longitudinal dimension of the frame are cut to fit the inside frame of the window. Elongated frame members having longitudinal slots which engage the edges of the panels are positioned on the sides and on the top of the panels. Track members join adjacent panels along their length to form a sheet of panels of the correct size. Each track member has a flat longitudinal surface which is fastened across the frame between adjacent panels. It has an upwardly facing slot to engage the panel above the track and a downwardly facing slot in which a gasket is placed to seal the track member to the top frame of the panel below it.