公开(公告)号：GB2494037A

公开(公告)日：2013-02-27

申请号：GB201214520

申请日：2012-08-15

Applicant: IBM

Inventor： BANZHAF GERHARD ,  WEBER HELMUT ,  SCHLIPF THOMAS ,  BEN-DAYAN MAOR ,  BOYD KENNETH WAYNE

IPC: G06F11/10 ,  G06F3/06 ,  G11B20/12

Abstract: Information units (UI's) are aligned in a block boundary format. Block protection trailer data is added to each one of the UI's. In a data storage and transmission system information units of variable-length data records such as extended count key data (ECKD) may be stored and transferred according to a fixed-length block protocol such as the T10/SCSI standard. Protection data such as cyclic redundancy check (CRC) hash is added to the end of each block. Padding data may be added to the variable length data when forming the fixed-length blocks. The fixed-length blocks may subsequently be re-assembled into ECKD if required.

公开(公告)号：CA2519173A1

公开(公告)日：2004-11-04

申请号：CA2519173

申请日：2004-04-19

Applicant: IBM

Inventor： HOOD ROBERT ALLEN ,  FRISKE ROBERT CHARLES ,  KALOS MATTHEW JOSEPH ,  BOYD KENNETH WAYNE ,  KERN ROBERT FREDERIC

IPC: G06F3/06 ,  G06F12/00 ,  G06F17/30

Abstract: A data management system has at least one class distinction cue associated with a class of data entities. The class distinction cue comprises data management guidance information and priority information related to the associated class of data entities. For a data entity, at run-time, a data management allocation run-time system references the class distinction cue o r cues prior to conducting data management allocation or access, and, based on the priority information as compared to other priority information related t o the data storage resources, selectively allocates the data storage resources and provides the operations of the storage system in the data management allocation system for the data entity.