test/info/SampleData/systemrw.img' vdfs4_volume_begins information>
 - mkfs cmdline : mkfs.vdfs -i -V -z 20480K -r /var/tmp/mic-tmp-5qpGBL
 - mkfs date : 2024.07.01-18:09
 - mkfs user : Anonymous

<'test/info/SampleData/systemrw.img' vdfs4_super_block information>
 - max blocks cnt : 5120 (0x1400, 20480 kbyte)
 - volume name : VDFS4_VOLUME
 - log blk size(page) : 12 (4096 byte)
 - log super page size : 14 (16384 byte)
 - log erase blk size : 21 (2097152 byte)
 - read only img : NO
 - img inode cnt : 23

<'test/info/SampleData/systemrw.img' vdfs4_extended_super_block information>
 - files cnt : 1
 - folders cnt : 1
 - volume body : offset(0), length(5114(0x13fa))
 - mount  cnt : 0
 - umount cnt : 0
 - generation : 0
 - dbg area : offset(2), length(4)
 - meta total blk cnt : 360
 - base table : offset(6), length(28(0x1c))
 - meta 
   `-  ( 0) begin:0x22 , length:0x168 (unit:block index)
 - volume blk cnt : 5120 (0x1400)
 - written : 0 kbytes

<'test/info/SampleData/systemrw.img' Volume Map>
+----------------------------------------+-0
+      volume_begins(1) (len:     0x200) +
+----------------------------------------+-0x200
+      super_block(1-1) (len:     0x200) +
+----------------------------------------+-0x400
+      super_block(1-2) (len:     0x200) +
+----------------------------------------+-0x600
+    ext_super_block(1) (len:     0xa00) +
+----------------------------------------+-0x1000
+      volume_begins(2) (len:     0x200) +
+----------------------------------------+-0x1200
+      super_block(2-1) (len:     0x200) +
+----------------------------------------+-0x1400
+      super_block(2-2) (len:     0x200) +
+----------------------------------------+-0x1600
+    ext_super_block(2) (len:     0xa00) +
+----------------------------------------+-0x2000
+            debug area (len:    0x4000) +
+----------------------------------------+-0x6000
+            base table (len:   0x1c000) +
+----------------------------------------+-0x22000
+             meta area (len:  0x168000) +
+----------------------------------------+-0x18a000
+             data area (len: 0x1276000) +
+----------------------------------------+-0x1400000
<Summary>
 * data total size : 18MByte (19357696byte)
 * meta total size : 1MByte (1474560byte)



