How to find out the parameters of an ext3 filesystem

Dan Track dan.track at gmail.com
Wed Oct 14 15:07:09 UTC 2009


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)"

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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