How to find out the parameters of an ext3 filesystem

Ed Greshko Ed.Greshko at greshko.com
Wed Oct 14 15:18:46 UTC 2009


Dan Track wrote:
> On Wed, Oct 14, 2009 at 3:56 PM, Chris Adams <cmadams at hiwaay.net> wrote:
>   
>> Once upon a time, Dan Track <dan.track at gmail.com> said:
>>     
>>> I'd like to know the parameters of an ext3 filesystem i.e what
>>> blocksize was used, inodes etc... Can someone please show me a command
>>> I can use to find this information.
>>>       
>> As root, "tune2fs -l <device>", where "<device>" is the block device
>> that contains the filesystem (e.g. /dev/sda2, /dev/vg0/lv0, etc.).
>> --
>> Chris Adams <cmadams at hiwaay.net>
>> Systems and Network Administrator - HiWAAY Internet Services
>> I don't speak for anybody but myself - that's enough trouble.
>>
>>     
>
> Great thanks. Can I ask one more question. I'm trying to put all the
> information in the following website:
> http://busybox.net/~aldot/mkfs_stride.html
>
> and it is asking me for the following: "number of filesystem blocks (in KiB)"
>   
How does this question relate to Fedora? 

Isn't this something related to busybox that maybe you should be asking
about to that community?
> What value should I put given the output from tune2fs below:
>
> tune2fs -l /dev/VolGrp00/LogVol01
> tune2fs 1.39 (29-May-2006)
> Filesystem volume name:   <none>
> Last mounted on:          <not available>
> Filesystem UUID:          ec03dcbc-2829-4a22-a43f-52dbf1bb5af8
> Filesystem magic number:  0xEF53
> Filesystem revision #:    1 (dynamic)
> Filesystem features:      has_journal resize_inode dir_index filetype
> needs_recovery sparse_super large_file
> Default mount options:    (none)
> Filesystem state:         clean
> Errors behavior:          Continue
> Filesystem OS type:       Linux
> Inode count:              1220935680
> Block count:              2441864192
> Reserved block count:     122093209
> Free blocks:              2403359240
> Free inodes:              1220931839
> First block:              0
> Block size:               4096
> Fragment size:            4096
> Reserved GDT blocks:      441
> Blocks per group:         32768
> Fragments per group:      32768
> Inodes per group:         16384
> Inode blocks per group:   512
> Filesystem created:       Tue Oct 13 18:51:33 2009
> Last mount time:          Wed Oct 14 15:32:47 2009
> Last write time:          Wed Oct 14 15:32:47 2009
> Mount count:              5
> Maximum mount count:      29
> Last checked:             Tue Oct 13 18:51:33 2009
> Check interval:           15552000 (6 months)
> Next check after:         Sun Apr 11 18:51:33 2010
> Reserved blocks uid:      0 (user root)
> Reserved blocks gid:      0 (group root)
> First inode:              11
> Inode size:               128
> Journal inode:            8
> Default directory hash:   tea
> Directory Hash Seed:      72b9b9fe-57dd-433a-815c-de332420a0c5
> Journal backup:           inode blocks
>
> Thanks
> Dan
>
>   


-- 
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