Block based end-to-end data protection of extended count key data (ECKD)

    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

    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.

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