Bug 603990 - Default to cache=none for block devices
Summary: Default to cache=none for block devices
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: All
OS: Linux
Target Milestone: rc
: 7.0
Assignee: Paolo Bonzini
QA Contact:
Depends On:
Blocks: 580954
TreeView+ depends on / blocked
Reported: 2010-06-15 05:42 UTC by Amit Shah
Modified: 2013-01-09 22:44 UTC (History)
9 users (show)

Clone Of:
Last Closed: 2012-10-25 13:33:37 UTC

Attachments (Terms of Use)

Description Amit Shah 2010-06-15 05:42:20 UTC
Description of problem:

We recommend running qemu with 'cache=none' for block devices. Set the default to 'cache=none' so that libvirt, vdsm, virt-manager, cmd-line users, all don't have to explicitly do that.

Comment 1 RHEL Product and Program Management 2010-06-15 06:02:59 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for

Comment 12 Paolo Bonzini 2012-10-25 13:33:37 UTC
Upstream now has cache=writeback as the default.  However, this is a non-issue for RHEL since we always go through libvirt.

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