Converting ext3 to ext4 - results (Re: ext3 vs ext4)

[Stephen]

That is interesting


On 2/6/09, Charles Jones <charles.jones at ciscolearning.org> wrote:
> Okay here is the run on the other partition, including a pre-conversion
> fsck.
>
> # df -h /raid1
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/sdb1             1.8T  1.2T  557G  69% /raid1
>
> *Pre-conversion fsck:*
> # time fsck -fp /dev/sdb1
> fsck 1.41.3 (12-Oct-2008)
>
> RAID1: 3259/244203520 files (13.8% non-contiguous), 318202066/488382016
> blocks
>
> real    70m24.617s
> user    16m50.522s
> sys    4m47.142s
>
> # tune2fs -O extents,uninit_bg,dir_index /dev/sdb1
> tune2fs 1.41.3 (12-Oct-2008)
> Please run e2fsck on the filesystem.
>
> *The painful fsck that does all the work:*
> # time fsck -fp /dev/sdb1
> fsck 1.41.3 (12-Oct-2008)
> RAID1: Group descriptor 14902 checksum is invalid.  FIXED.
> RAID1: Group descriptor 14903 checksum is invalid.  FIXED.
> RAID1: Group descriptor 14904 checksum is invalid.  FIXED.
>
> RAID1: 3259/244203520 files (13.8% non-contiguous), 318202066/488382016
> blocks
>
> real    70m3.541s
> user    16m27.907s
> sys    4m44.266s
>
> *Post-conversion fsck:*
>
> # time fsck -fp /dev/sdb1
> fsck 1.41.3 (12-Oct-2008)
> RAID1: 3259/244203520 files (13.8% non-contiguous), 318202066/488382016
> blocks
>
> real    43m50.323s
> user    1m51.994s
> sys    0m37.605s
>
>
> -Charles
>

-- 
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Stephen