ext4 και χαμένος χώρος

[Theodore Lytras]

Στις Τετ 09 Μαΐ 2012, ο/η Christos Ricudis έγραψε:
> On 05/08/2012 10:57 PM, Theodore Lytras wrote:
> > (1) Είναι δικαιολογημένη αυτή η σπατάλη χωρητικότητας μόνο από το μέγεθος
> > των inodes, το μέγεθος του journal ή από τα "reserved blocks για
> > priviledged processes" που διάβασα κάπου οτι αντιστοιχούν στο 5%?
> 
> Endexomenws omws na einai apo to block size. Gia deikse mas to output
> ths tune2fs -l
> /dev/disk/by-physical-location/28.4927,59.6948/trito_fanari_deksia/aspro_sp
> iti/trito_ypogeio/pempto_kompiouter_deksia/panw_panw_diskos

Το μεγάλο και το μικρό partition αντίστοιχα:

root at equinox2:/home/bones# tune2fs -l /dev/sda7
tune2fs 1.42.2 (9-Apr-2012)
Filesystem volume name:   <none>
Last mounted on:          /media/data
Filesystem UUID:          62beb1b2-636c-4590-999a-592d6a0d5929
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype 
needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg 
dir_nlink extra_isize
Filesystem flags:         signed_directory_hash 
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              39378944
Block count:              157511936
Reserved block count:     7875596
Free blocks:              135004622
Free inodes:              39327414
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      986
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
Flex block group size:    16
Filesystem created:       Tue May  8 00:00:10 2012
Last mount time:          Wed May  9 00:03:25 2012
Last write time:          Wed May  9 00:03:25 2012
Mount count:              11
Maximum mount count:      -1
Last checked:             Tue May  8 00:00:10 2012
Check interval:           0 (<none>)
Lifetime writes:          86 GB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      6088b41f-28e5-4be3-bc85-4d42270cb78b
Journal backup:           inode blocks

root at equinox2:/home/bones# tune2fs -l /dev/sda6
tune2fs 1.42.2 (9-Apr-2012)
Filesystem volume name:   <none>
Last mounted on:          /media/data_aux
Filesystem UUID:          dc9d5aa0-5035-4131-b7e9-4ff52f5e11f6
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype 
needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg 
dir_nlink extra_isize
Filesystem flags:         signed_directory_hash 
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              2424832
Block count:              9699328
Reserved block count:     484966
Free blocks:              7464313
Free inodes:              2389470
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      1021
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
Flex block group size:    16
Filesystem created:       Tue May  8 00:00:00 2012
Last mount time:          Wed May  9 00:03:25 2012
Last write time:          Wed May  9 00:03:25 2012
Mount count:              11
Maximum mount count:      -1
Last checked:             Tue May  8 00:00:00 2012
Check interval:           0 (<none>)
Lifetime writes:          9 GB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      9ad2d52c-70cb-442c-a4b4-33bd6e822dd3
Journal backup:           inode blocks





-- 
"Beauty is transitory."
"Beauty survives."
        --  Mr. Spock & Capt. Kirk, "That Which Survives", stardate unknown
by Theodore Lytras <thlytras at gmail.com>