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Re: [Xen-devel] iSCSI

Am Sonntag, den 10.04.2005, 20:04 +0100 schrieb Ian Pratt:
> Has anyone got any experience using the new 'open-iscsi' initiator?
> (either on Xen or native) http://www.open-iscsi.org/
> 
> We've been using the cisco iscsi stack
> http://linux-iscsi.sourceforge.net/ for some time, but the performance
> isn't great. open-iscsi claims good performance, so it might be worth
> switching over.

Is there a introducing comparison of the different network blockdevice
techniques like NBD/ENBD/GNBD, DRDB or iSCSI? You seem to prefer iSCSI 
- why?

Is network blockdevice sharing (that's meant with "multipath", right?)
necessary for "xm migrate"?


> BTW: gnbd works great, but I wish it used checksums over and above the
> ip csum / ethernet crc32. 

As the ethernet checksum is (afaik) over the hole frame it should be ok
as long as GNDB is done within a L2 segment, correct?

/nils.


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