#242 iSCSI data lost if muticonnect to one target

v0.685b
closed
nobody
5
2012-10-28
2007-08-27
-redw-
No

if more than one XP PC are using one iSCSI taget at the same time together, than in my test data will be lost

szenario:
I make a test with 3 PCs
at the 1st I created files and directories and if I checked at the other PC the directory structure I never saw these modifications, in the meantime the 3th PC did make a massive copy procedure

test was made with 685b2 and XPSP2+Initiator-2.05-build3392-x86fre.exe

Discussion

  • Volker
    Volker
    2007-08-28

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    Hi,
    i'm not sure if this scenario is supported by iSCSI. Are you sure this should work and is specified in the iSCSI protocol?

    Greetings
    Volker

     
  • -redw-
    -redw-
    2007-08-28

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    i'm not sure too. i checked RFC 3720 (http://tools.ietf.org/html/rfc3720) and found no described limitations about this point. But i'm not an expert of iSCSI. Hope someone can help to answer this question finally or know other sources that describe this point clearly.

    Greetings
    Thomas

     
  • -c^s- Tan
    -c^s- Tan
    2007-12-19

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    There is a commercial product fixes this problem.

    http://www.iscsicake.com/faq.htm

    Some sort of delta files for each client.
    I remember reading about RW full mode & "RW demo" mode for iSCSI somewhere.

    Greetings & Regards..

     
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    You problem is that iSCSI is not a cluster filesystem. If you want more than one computer to access the same iSCSI target at the same time then you need to be using a filesystem that supports this. NTFS is not one of them. This needs closing as it is not a FreeNAS bug.