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virt-install: document cache mode 'unsafe' and 'directsync' 

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2015-02-13 09:50:56 +01:00
parent 4182431360
commit 74c5aa82a9
1 changed files with 5 additions and 2 deletions
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7
man/virt-install.pod
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@ -607,9 +607,12 @@ Path to a disk to use as the backing store for the newly created image.
=item B<cache>
The cache mode to be used. The host pagecache provides cache memory.
The cache value can be 'none', 'writethrough', or 'writeback'.
The cache value can be 'none', 'writethrough', 'directsync', 'unsafe'
or 'writeback'.
'writethrough' provides read caching. 'writeback' provides
read and write caching.
read and write caching. 'directsync' bypasses the host page
cache. 'unsafe' may cache all content and ignore flush requests from
the guest.
=item B<discard>