search for: discontig

...This is just to remind users to add the "noatime" mount option to the mounts that hold the Oracle datafiles, redologs, archivelogs, voting file, etc. This is for OCFS2 1.4 only. WHAT'S CHANGED This release includes bug fixes, applicable backports from mainline and a new feature discontiguous block group. The new feature allows block groups to allocate discontiguous groups when contiguous region is not available. To enable discontigous block group feature # tunefs.ocfs2 --fs-features=discontig-bg <dev> To disable discontigous block group feature # tunefs.ocfs2 --f...

We currently compare the sum of the pages found in the SRAT table to the address of the highest memory page found via the e820 table to validate the SRAT. This is completely bogus if there''s any kind of discontiguous memory, where the sum of the pages could be much smaller than the address of the highest page. I think all that''s necessary is to validate that each usable memory range in the e820 is covered by an SRAT entry. This might not be the most efficient way to do it, but there are usually a...

That change converted the (wrong) assumption of contiguous nodes'' memory to a similarly wrong one of assuming discontiguous memory (i.e. each node having separate E820 table entries). The code ought to be able to deal with both, though, and I hope this change makes it so. Signed-off-by: Jan Beulich <jbeulich@novell.com> --- 2009-08-24.orig/xen/arch/x86/srat.c 2009-08-28 00:00:00.000000000 +0200 +++ 2009-08-2...

...ss, ocfs2 has had a major limitation since the beginning. When ocfs2 needs new inodes, it has always grown its metadata allocators in contiguous hunks. As you might expect, badly fragmented filesystems may be unable to add new inodes even when there is plenty of unused space. Tao and I have added discontiguous block groups to fix the problem. There's also various small stuff. The shortlog is below. Please pull. Joel The following changes since commit a0fe3cc5d36a5f5b4f60abfe1a4b1caf4a5cce5a: Linus Torvalds (1): Merge branch 'for-linus' of git://git.kernel.org/.../dtor/input...

Hi List, i'd like to share with you what happened yesterday. Kernel 2.6.36.1 ocfs2-tools 1.6.3 (latest). I had an old OCFS2 partition created with a 2.6.32 kernel and ocfs2 tools 1.4.5. I unmounted all partitions on all nodes in order to enable discontig-bg. I then used tunefs to add discontig-bg, inline-data and indexed-dirs. During indexed-dirs tunefs segfaulted and since then, fsck didn't work anymore. I managed to mount the partition again but after some errors like the following Jan 11 23:11:56 www1 kernel: [ 2339.642683] (mc,3305,0...

We have an application that has many processing threads writing more than a billion files ranging from 2KB ? 50KB, with 50% under 8KB (currently there are 700 million files). The files are never deleted or modified ? they are written once, and read infrequently. The files are hashed so that they are evenly distributed across ~1,000,000 subdirectories up to 3 levels deep, with up to 1000 files

Hi , I am getting the error "No space left on device" on a device with free space which is ocfs2 filesystem. Additional information is as below, [root at sai93 staging]# debugfs.ocfs2 -n -R "stats" /dev/sdb1 | grep -i "Cluster Size" Block Size Bits: 12 Cluster Size Bits: 15 [root at sai93 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release

...rruption bug o2info --volinfo /dev/drbd0 Label: kvm-images UUID: BE7C101466AD4F2196A849C7A6031263 Block Size: 4096 Cluster Size: 1048576 Node Slots: 8 Features: backup-super strict-journal-super sparse extended-slotmap Features: inline-data xattr indexed-dirs refcount discontig-bg unwritten Thanks in advance! Cheers, David [1] http://git.qemu.org/?p=qemu.git;a=blob;f=block/raw-posix.c;h=ba721d3f5bd98a6b62791c2e20dbf2894021ad76;hb=HEAD#l1087 [2] http://smackerelofopinion.blogspot.de/2010/01/using-fiemap-ioctl-to-get-file-extents.html [3] https://gist.github.com/anony...

...e just had an issue on one of our clients servers, whereby the server was claiming there was no more space, but df showed there there plenty of space (even checked the inodes). We were really stummped, but after Googling around, the following command was needed to be run tunefs.ocfs2 --fs-features=discontig-bg /dev/drbd0 Here is the output before tunefs.ocfs2 was run user at server:/storage/www/site.com/current/sites/default/files/tmp$ <http://daddysdeals.co.za/current/sites/default/files/tmp$> df -h Filesystem Size Used Avail Use% Mounted on rootfs 10G 302M...

Hi All, Please I would like to know what the maximum number of files (limit) is for an OCFS2 file system created on a x86_64 system with default options on a 900GB LUN. The system specs are listed below. It was noticed that at some point any attempt to create an additional file on the file system hangs the session and hangs accessto the file system as well. Attempts to start the application

...ocfs2 mkfs.ocfs2 -F /dev/mapper/xenconfig_part1 mkfs.ocfs2 1.8.0 Cluster stack: pcmk Cluster name: pacemaker Stack Flags: 0x0 NOTE: Feature extended slot map may be enabled Label: Features: sparse extended-slotmap backup-super unwritten inline-data strict- journal-super xattr indexed-dirs refcount discontig-bg Block size: 4096 (12 bits) Cluster size: 4096 (12 bits) Volume size: 20063436800 (4898300 clusters) (4898300 blocks) Cluster groups: 152 (tail covers 27644 clusters, rest cover 32256 clusters) Extent allocator size: 4194304 (1 groups) Journal size: 125394944 Node slots: 8 Creating bitmaps: done...

Sorry i don`t copy everything: TEST-MAIL1# echo "ls //orphan_dir:0000"|debugfs.ocfs2 /dev/dm-0|wc debugfs.ocfs2 1.6.4 5239722 26198604 246266859 TEST-MAIL1# echo "ls //orphan_dir:0001"|debugfs.ocfs2 /dev/dm-0|wc debugfs.ocfs2 1.6.4 6074335 30371669 285493670 TEST-MAIL2 ~ # echo "ls //orphan_dir:0000"|debugfs.ocfs2 /dev/dm-0|wc debugfs.ocfs2 1.6.4 5239722 26198604