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Re: [libvirt] [PATCH v3 4/7] qemu: Translate the iscsi pool/volume disk source



Il 24/07/2013 11:54, Daniel P. Berrange ha scritto:
>> but anyway, we provide good enough documentations, so if one wants to
>> use "direct" mode, he can still change the xml to use it, any big problems
>> here? though defaulting to "direct" is more convenient for these users.
> 
> Defaulting to "direct" is *NOT* more convenient for all users, only
> those who happen to have a new enough QEMU, from a vendor who actually
> decided to compile in the iSCSI support. If they're lacking such a QEMU
> then the "direct" mode will prevent the default config from even starting.
> This can never be an acceptable default choice. mode="host", while it huas
> some limitations in features, is the only option that is capable of working
> with any QEMU

s/limitations in features/possibility of wreaking havoc to clusters/

Didn't you "break features that worked" when you started forbidding
migration unless cache=none?  This time there is even hardly a feature
that worked, because the feature is new.

Paolo


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