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Hi, I have btrfs volume, shared via samba. I have a directory of documents that I want to backup on my server. win7 reports a maximum of ~3.10MB/s transfer transferring the same directory on a ext4 samba share I get 25MB/s + Any ideas? Is it like that because of how btrfs works and is setup? Thanks, -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body

Hi list, I have a few large image files (VMware workstation VMDKs and TrueCrypt containers) which I routinely back up over the network to a btrfs raid10 volume via bigsync (https://code.google.com/p/bigsync/). The VM images in particular get really fragmented due to CoW, which is expected. I haven''t yet switched off CoW on the backups directory mainly to experiment and see what

I came across the tidbit that ZFS has a contract guarantee that the data read back will either be correct (the checksum computed over the data read from the disk matches the checksum stored on disk), or you get an I/O error. Obviously, this greatly reduces the probability that the data is invalid. (Particularly when taken in combination with the disk firmware''s own ECC and checksumming.)

...t the moment which tends to use lots of (smaller) files and due to KDE PIM from KDE SC 4.4.11 still in Debian, there is no mail metadata in it, just contacts and calendar metadata. Ciao, -- Martin ''Helios'' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

...ss I will continue grepping kernel changelogs and the internet for until I have the information I want for that article. Please CC to me personally as I am not subscribed to the list... Regards, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7

...management of the flash. (Re: SSDs and filesystem alignment... from 2009-02-23, Message-Id: <1235398980.11205.5.camel@think.oraclecorp.com>) But what about data alignment? Ciao, -- Martin ''Helios'' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7

...re your oppinions? [1] http://www.techenclave.com/open-source-and-linux/ssds-and-btrfs-match- made-heaven-183940.html [2] http://www.anandtech.com/show/4244/intel-ssd-320-review Ciao, -- Martin ''Helios'' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

...lock(&inode->i_mutex); > > - if (ret > 0 || ret == -EIOCBQUEUED) { > + if (ret > 0) { > ssize_t err; > > err = generic_write_sync(file, pos, ret); -- Martin ''Helios'' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs

Hi, I am new to btrfs, and just installed a new system with SLED 11 SP2 a few days ago. However the system seems to be in a real sad state now, saying there is no free space left on the device even though there is about 8GB left on the / filesystem. A defragment works sometimes but then it goes back to the original state a day or two later. Other times the command just won''t respond.

Hi, I have 4 machines, all converted to BTRFS about 6 months ago, now all running Ubuntu Quantal with kernel 3.5.0-17 The matter is that all these machines are now getting slower and slower everyday, every disk access causing the disk to be 100% busy for long periods, to the point that I''m now seriously considering migrating everything back to ext4... From the start BTRFS was "not

...o boot a VM. I created a boot disk with rbgf.exe.Booted and thats the output: AMD PCnet Adapter Node: [the correct mac address] DHCP... TFTP... PXELINUX 2.06 2003-08-22 Copyright.... Found PXENV+ structure PXE API version is 0063 Old PXE API detected, using PXENV+ structure UNDI data segment at 991B UNDI data segment size: 564D UNDI code segment at: 97BD UNDI code segment size: 15E0 PXENV entry point found (we hope) at 941F:0DAF then nothing happens. Given this information do you thing I'm soffering of a configuration problem somewhere? Any idea, suggestion? I searched the net without...

...elated BTRFS hang: flush-btrfs-1 hangs when building openwrt http://marc.info/?l=linux-btrfs&m=129594547616298&w=2 I will add this as comment to the bug report as well. Thanks, -- Martin ''Helios'' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7

So I''m having a bit of trouble with one of my btrfs filesystems. It isn''t mounting after a power failure. I can''t get restore or btrfsck to run, even on backup supers. I''ve pasted some output below. My btrfs-progs below come from git this morning, running on linux 3.2.0. # mount /dev/md2 /media/test/ mount: wrong fs type, bad option, bad superblock on

I just subscribed to this list so in case this subject has already been discussed at length, my apologies. I have been waiting for btrfs forever. I have been waiting for it to become reasonably stable. In the wake of escalating problems with my old hardware RAID setup, I decided now was the time to make the transition. At this point I have been completely transitioned to btrfs for nearly

For using SSDs: Are there any format/mount parameters that should be set for using btrfs on SSDs (other than the "ssd" mount option)? General questions: How long is the ''delay'' for the delayed alloc? Are file allocations aligned to 4kiB boundaries, or larger? What byte value is used to pad unused space? (Aside: For some, the erased state reads all 0x00, and for

...re trimmed merkaba:~> fstrim -v / /: 4341846016 bytes were trimmed Is it planned to add this feature to BTRFS as well? I wish you a relaxed between Christmas and new year time, -- Martin ''Helios'' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

Hello, I have created a btrfs filesystem with RAID1 setup having 2 disks. Everything works fine but when I try to umount the device and remount it in degraded mode, the data still goes into both the disk. ideally in degraded mode only one disk show disk activity and not the failed ones. System Config: Base OS: Slackware kernel: linux 3.3.2 "sar -pd 2 10" shows me that the data is

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, this is a new attempt to improve the output of the command "btrfs fi df". The previous attempt received a good reception. However there was no a general consensus about the wording. Moreover I still didn''t understand how btrfs was using the disks. A my first attempt was to develop a new command which shows how the disks

Hi, There''s been discussion before on this list on the very small number of hard links supported by btrfs.[1][2] In those threads, an often asked question has been if there''s a real world use case the limit breaks. Also it has been pointed out that a fix for this would need a disk format change. As discussed in bug #15762 [3], there are certainly real-world use cases this

Hi folks, I''m using Ubuntu 12.10 Quantal with # uname -r 3.5.0-24-generic And it seems I cannot defrag : # filefrag /boot/initrd.img-3.5.0-24-generic /boot/initrd.img-3.5.0-24-generic: 3 extents found # btrfs filesystem defrag /boot/initrd.img-3.5.0-24-generic # echo $? 20 # filefrag /boot/initrd.img-3.5.0-24-generic /boot/initrd.img-3.5.0-24-generic: 3 extents found Any clue