and the system has to then do a read-modify-write on
> 512kBytes...
My question would be naive, but would it be possible to have a syscall or
something to do
a fast "rm -rf" or du ?
I think ceph might have the later actually.
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k and will not touch anything
> else)
Updated the wiki:
https://btrfs.wiki.kernel.org/index.php/Problem_FAQ#How_to_clean_up_old_superblock_.3F
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x.php/Mount_options#Performance
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. However, is the S really relevant ?
It would be simpler without it, wouldn't it ?
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dy exists.
>
> Or, something along those lines. Similar to how other apps work
> with/without a trailing /.
I am not an expert, but I think it is the opposite with rsync.
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would be
very helpfull !
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partition mounted read-only, and then on
2.6.37-rc2, and everything seems to work pretty well.
Please tell me if you need anything about this.
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. abandon the burdened raid* terminology in favour of
> something that makes more sense for a filesystem.
I would agree with that.
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bel -> label of the filesystem
>
Well, mdstat stats are under /proc/mdstat.
Is sysfs the ideal place ?
Just asking.
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Le 26 octobre 2010 à 15:15, Pat Regan a écrit:
> I turned off the 5-minute snapshots and I'm now just keeping 4 weekly, 7
> daily, and 24 hourly snapshots alive.
I have just rebooted and I am going with /15 minutes interval.
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00MB, used=0.00
System: total=4.00MB, used=0.00
Regards,
PS: extract from dmesg if somebody is interested.
http://pastebin.com/8zE4GKXu
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Mor
options you used
when doing mkfs.
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still present.
I am planning to put 2 dedicated web hosting servers in production
(backuped every day), with 2.6.34.5 vanilla kernel.
I also use btrfs on a 2.6.34 kernel on the backup server (rsync) for
some time.
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# Filter the number of snapshots
files = sorted( (file for file in glob.glob( "backup-*") if not
file.endswith(".old")) )
if len(files) > tuning.keep:
for file in files[:-tuning.keep]:
cmd = "/usr/local/bin/btrfs subvolume delete ".spli
up for schemes like 24 hourly snapshots, 7 daily and 4
> weekly.
I have roughly the same thing in python. I can post it if someone is
interested.
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- I can use other filesystems for backuppc and other
> similar systems,
Wouldn't it be even better to actually patch BackupPC to handle btrfs
snapshots and COW (bcp) ?
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kernel: [3458254.990199] btrfs: unlinked 1 orphans
Jul 19 04:01:41 backup1 kernel: [3512244.236347] btrfs: unlinked 1 orphans
Is this something I have to be afraid of ?
Linux debian lenny, pure btrfs partition with no raid, vanilla kernel:
2.6.34.
Thanks,
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gt; btrfs rem|-R
> > Remove a device to a filesystem
> Just a small suggestion:
> "btrfs remove" instead of "btrfs rem"
Why not "btrfs rm", which reminds "git rm" ?
Actually, I would do something like:
btrfs vol add
bt
swap anyway.
Did I miss something ?
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inode_mkdir
Is there a better way to do it ? I am running ubuntu.
Cheers,
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the data for maximum disk throughput.
I am not a specialist, but this document is worth reading IMHO.
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