From: Gerhard Wiesinger <lists@wiesinger.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] TRIM, UNMAP and QCOW2 release of block information - Thin provisioning
Date: Sun, 12 Aug 2012 21:00:02 +0200 [thread overview]
Message-ID: <5027FD32.1010609@wiesinger.com> (raw)
Hello,
As far as I saw QEMU/KVM supports the trim command on IDE/SATA devices
and the UNMAP command on SCSI devices/disks (thanks Paolo Bonzini). Will
the qcow2 format (or other formats) use this information and also
release the blocks for thin provisioning to save disk space on filesystems?
VirtualBox also has such a feature in the new beta version:
http://www.fb-developers.info/blog/2012/virtualbox-v4-2-is-coming/
Thnx.
Ciao,
Gerhard
--
http://www.wiesinger.com/
next reply other threads:[~2012-08-12 19:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-12 19:00 Gerhard Wiesinger [this message]
2012-08-13 8:31 ` [Qemu-devel] TRIM, UNMAP and QCOW2 release of block information - Thin provisioning Stefan Hajnoczi
2012-08-15 13:06 ` Kevin Wolf
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