TimeFinder Disk Local replication – Point-In-Time Copy
..., A Symmetrix system provides redundant hardware that allows the system to remain
operational in the event of a failed component and also during subsequent
component repair. Redundant hardware components include:
A block is the smallest unit on a disk drive
-520 Bytes block size
-512 Bytes for data
-8 Bytes for meta-data (CRC)
A track is a logical build of 128 blocks on a disk drive
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