• This topic has 1 reply, 2 voices, and was last updated January 16, 2018 by Ryan S.

RDM "incorrect block size" error

  • I want to replicate the rdm disks connected to the running virtual server on rdm disks connected to the other esxi server.I could map an rdm disk of size 510 gb.
    However, although rdm drives are given in the same size, I get inrorrect block size error for 2TB size disks. Hitachi storage on the source side, 3Par storage on the target side.

    What should I do to equalize the block size?

    Hi Sercan,

    I see your case has been closed.  Did you end up following the KB article to help solve or did you just decide to use VMDKs instead of RDM?


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