You have 10 disks, total, each is 4 TB (Terabytes). You may choose one of the fo

Question

You have 10 disks, total, each is 4 TB (Terabytes). You may choose one of the       following configurations:        C1 – each disk is independent of the others, files can be put on any disk,       C2 – Mirrored (only mirrored)       C3 – Striped (only stripped)       C4 – Parity Disk and stripped       

(1) What is the total file storage capacity (raw size) for each configuration?           C1=___________ C2 = _______________ C3 = ____________ C4=_____________             

(2) For a very large file (for example 10 GB), which is (are) the fastest,            and which is the slowest?           Briefly, why?     

   (3) For each configuration, can one disk fail and we can still recover data            (yes-can recover data, no-lost)?             C1=___________ C2 = _______________ C3 = ____________ C4=_____________  

Explanation / Answer

(1) What is the total file storage capacity (raw size) for each configuration?  

         C1=___40 TB________ C2 = _______4 TB________ C3 = ____40 TB________ C4=_____36 TB________

(2) Fastest = C2

Slowest = C4

(3) For each configuration, can one disk fail and we can still recover data            (yes-can recover data, no-lost)?   

          C1=_____No______ C2 = _____Yes__________ C3 = __No__ C4=_____Yes________

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