search for: fitrim

Displaying 5 results from an estimated 5 matches for "fitrim".

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2013 Oct 10
4
BUG relating to fstrim on btrfs partitions
...k this is a bug?  When I do the same on an ext4 partition I get different behavior: the output shows 0 B trimmed and it does is instantaneously when I run it a 2nd time.  After contacting the fstrim developer, he stated that the userspace part (fstrim) does only one thing and it is invoke an ioctl (FITRIM); it is the job of the filesystem to properly implement this. Supporting data ---------------- Example on a btrfs partition: The 1st time: % time sudo fstrim -v / /: 5.2 GiB (5575192576 bytes) trimmed sudo fstrim -v /  0.00s user 0.05s system 2% cpu 2.084 total The 2nd time: % time sudo fstrim -v...
2011 Mar 07
4
[PATCH 0/3] ocfs2: Add batched discard support
Hi all, This patch set adds batched discard support to ocfs2. Please check. Thanks. Regards, Tao
2017 Feb 28
0
ANNOUNCE: libguestfs 1.36 released
...prep does not utilize libguestfs encryption support https://bugzilla.redhat.com/1354507 virt-v2v conversions from vCenter do not consistently obey the proxy environment variables https://bugzilla.redhat.com/1168144 warning: fstrim: fstrim: /sysroot/: FITRIM ioctl failed: Operation not supported (ignored) when convert win2003 guest from xen server https://bugzilla.redhat.com/1161019 RFE: Only install RHEV-APT if virt-v2v -o rhev/-o vdsm option is used https://bugzilla.redhat.com/1152369 virt-v...
2015 Jul 21
0
ANNOUNCE: libguestfs 1.30 released
...ibguestfs error: qemu-img info: 'virtual-size' is not representable as a 64 bit integer https://bugzilla.redhat.com/1169015 virt-resize --expand fails on ubuntu-14.04.img image (regression) https://bugzilla.redhat.com/1168144 warning: fstrim: fstrim: /sysroot/: FITRIM ioctl failed: Operation not supported (ignored) when convert win2003 guest from xen server https://bugzilla.redhat.com/1167921 p2v: No Network Connection dialog https://bugzilla.redhat.com/1167774 virt-p2v fails with error:"nbd.c:nbd_receive_negotiate():L501: read...
2013 Mar 18
12
Impossible or Possible to Securely Erase File on Btrfs?
Hi, After reading through the btrfs documentation I''m curious to know if it''s possible to ever securely erase a file from a btrfs filesystem (or ZFS for that matter). On non-COW filesystems atop regular HDDs one can simply overwrite the file with zeros or random data using dd or some other tool and rest assured that the blocks which contained the sensitive information have