----------------eredeti üzenet-----------------
Feladó: "Alexandre" alxg...@gmail.com
Címzett: "PongráczI"
CC: "aoetools-discuss lists.sourceforge.net"
aoetools-discuss@lists.sourceforge.net
Dátum: Sat, 6 Apr 2013 10:24:10 +0100
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>
>
>
>
>
>I am not sure to understand against which type of error you want a
>protection/detection
>of.
>
>Are you talking about corruption of data during the the transport over the
>wire?
>
>Can you find the name of the feature implemented in iscsi you'd like to check
>for in aoe?
>
>
>regards, Alex
>
>
>
>
>
>Hi,
>
>
>Thank you for your feedback! I try to explain my question in a better way :)
>
>So, your first question is exactly my question: Are you talking about
>corruption of
>data during the the transport over the wire? Yes.
>
>On the client side, I want to write to the disk a data, for example a binary
>data:
>01111000001111100001111 I want to be sure, on the server side it will be
>written to the disk the same data:
>01111000001111100001111
>
>At this moment, I do not know, if an electrical noise or whatever will alter
>the data sent
>trough the wire, how will layer 2 and AoE handle that situation?
>
>For example I wrote 'piano' on the client, but 'violin' will be written to the
>disk on the
>server, due to the corruption during the transport over the wire happens. Is
>that possible to
>get this kind of corruption, or layer2+AoE can catch this situation and can
>fix this kind of
>issues?
>
>I use ZFS filesystem, it uses end-to-end data protection by using extra
>checksum to
>every block written to the disk. This can provide very good data protection,
>but would be nice
>to know, using AoE will not cause corruption in a SAN environment. Others, who
>use iscsi,
>always tell me, iscsi has checksum to detect transfer issues, while AoE has no
>this kind of
>protection, so, to get data corruption can happen and will be not detected. In
>fact, I never used
>iscsi, due to that comparing to AoE it is much more complicated and I saw
>several people had
>issues to get it running on their environment. AoE just works.
>
>Thank you!
>
>István
>
>
>
>
>
>For example,
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