Structuring data for efficient I/O 4 format compress addr state c/c 花5 Column storage Time (mn) Captor 1 Captor 2 Captor c 0 ao bo Zo 1 a1 b1 41 4 。。。 n an bn Zn File content a0a1.an bo b1…bn…z021…Zn Back to efficient read seek read row/cal 9/42 S.Ponce-CERNStructuring data for efficient I/O 9 / 42 S. Ponce - CERN format compress addr state c/c row/col Column storage Time (mn) Captor 1 Captor 2 ... Captor c 0 a0 b0 ... z0 1 a1 b1 ... z1 ... ... ... ... ... n an bn ... zn File content a0 a1 ... an b0 b1 ... bn ... z0 z1 ... zn Back to efficient read seek read