作者gn00618777 (123)
看板Grad-ProbAsk
標題[理工] [os]-磁碟
時間Wed Feb 17 23:50:35 2010
An IDE hard disk spins at 7200RPM,1000 cylinders,10 tracks per cyclinder
100 sector per track, and 512 bytes per sector. The disk is performatted
by a file system which the logical block size is 1024 bytes. If we ignore
the space to keep directory and indexes, how many 1-byte files that the disk
can store ?
Disk總容量為512000000 bytes，為啥還要除1024?不是直接除5120000000/1byte就好了嗎
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→ taitin:因為一個檔案至少要一個磁區 02/18 00:45
推 luckysky1:98交大 同樓上 02/18 08:09
→ gn00618777:是說1個檔案至少1個block嗎/ 02/18 10:08
→ gn00618777:它是以block為單位，儘管1個block有能塞好幾個file的 02/18 10:10
→ gn00618777:大小? 02/18 10:10
→ jwcs:File是以block為單位，即使它實際只占block中的1byte 02/18 12:45
→ gn00618777:恩恩 02/18 20:29