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令人十足納悶!! 一顆 320G + 一顆 2TB HDD 做 Linear mode 出來可用空間是 116G !!XD!!


# mdadm -D /dev/md0
/dev/md0:
Version : 00.90.01
Creation Time : Tue Mar 13 23:13:33 2012
Raid Level : linear
Array Size : 115946112 (110.57 GiB 118.73 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Persistence : Superblock is persistent

Update Time : Tue Mar 13 23:13:33 2012
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0

Rounding : 64K

UUID : f5b63d7b:412de284:6603cdf0:46d6fe1b
Events : 0.1

Number Major Minor RaidDevice State
0 8 2 0 active sync /dev/sda2
1 8 18 1 active sync /dev/sdb2



# fdisk -l

Disk /dev/sda: 320.0 GB, 320071851520 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 1 131 1052257 83 Linux
/dev/sda2 132 38879 311243310 fd Linux raid autodetect
/dev/sda3 38880 38913 273105 82 Linux swap

Disk /dev/sdb: 2000.3 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 1 131 1052257 83 Linux
/dev/sdb2 132 18446744073709527435 18446744073514254638 fd Linux raid autodetect
/dev/sdb3 243168 243201 273105 82 Linux swap