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Re: Ext3-users digest, Vol 1 #910 - 5 msgs




On Tue, 24 Jun 2003 ext3-users-request redhat com wrote :
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Today's Topics:

1. some benchmarks (Christian Kujau)
2. Re: some benchmarks (kwijibo zianet com)
3. Re: How to determine Ext2/3 FileSystem state ? (Satish Singhal)
4. Can we resize an ext23 partition without unmounting ?? (Sugunakar Ambati)
5. Re: How to determine Ext2/3 FileSystem state ? (Andreas Dilger)
hi,


i've made *some* benchmarks, i plan to do more. benchmarks requests welcome, e.g. "please test this...with that.."

https://ephigenie.kicks-ass.net/bench/benchmark.html

but only in

https://ephigenie.kicks-ass.net/bench/prinz

are results right now.
I hope this is helpful.

Thanks,
Christian.


Hows about trying out the htree code? Htree in conjunction with NFS would be great.

Steve

Christian Kujau wrote:

hi,

i've made *some* benchmarks, i plan to do more. benchmarks requests welcome, e.g. "please test this...with that.."

https://ephigenie.kicks-ass.net/bench/benchmark.html

but only in

https://ephigenie.kicks-ass.net/bench/prinz

are results right now.
I hope this is helpful.

Thanks,
Christian.


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for getting state of ext2 filesystem there is a field in super block
telling state of ext2.


ravindra mahala


See ext3_sync_super_lockfs(), ext3_unlockfs(), and the LVM VFS-locking patch.
These are used to put the filesystem into a stable state for a short time
until the snapshot is created.



Sir,


Thanks for your response.
But my problem is a bit different.
Once the snapshot is taken, how do I determine that the given snapshot image (Ext2/Ext3 File-System) is indeed consistent.


Is there any field in super-block or any other on-disk structure which could tell the state of a raw File-System(Ext2/3) image.

Regards,
Satish Singhal

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Hi all, Can we resize an ext3 partition without unmounting?

Regards,
Sugunakar Ambati


On Jun 24, 2003 10:55 +0530, Satish Singhal wrote:
> >See ext3_sync_super_lockfs(), ext3_unlockfs(), and the LVM VFS-locking
> >patch.
> >These are used to put the filesystem into a stable state for a short time
> >until the snapshot is created.
>
> Thanks for your response.
> But my problem is a bit different.
> Once the snapshot is taken, how do I determine that the given snapshot image
> (Ext2/Ext3 File-System) is indeed consistent.
>
> Is there any field in super-block or any other on-disk structure which could
> tell the state of a raw File-System(Ext2/3) image.


After the snapshot is taken (as above), the absence of EXT3_VALID_FS in
s_mount_state, or the presence of EXT3_FEATURE_INCOMPAT_RECOVER in
s_feature_incompat means that the snapshot was not valid.


Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/




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