Drbd Primary/Primary + iSCSI: accessing to different files avoids split brain?

Posted by Eddie C. on Server Fault See other posts from Server Fault or by Eddie C.
Published on 2012-09-10T14:47:07Z Indexed on 2012/09/10 15:40 UTC
Read the original article Hit count: 347

Filed under:

load-balancing

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nfs

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iscsi

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high-availability

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drbd

I have a question / curiosity about split-brain on a Drbd Primary/Primary configuration. Supposing two nodes (hosts), host1 and host2 configured with Drbd Primary/Primary and two different shares (NFS, CIFS o iSCSI) of a replicated area (saying /drbd)

/drbd/file1.data
/drbd/file2.data

If a pool of client would access only by host1 share reading and wrinting only file1.data and another pool only by host2 share to file2.data, this scenario should avoid split brain situation in case of one node failure or it's just a conjecture?

The final purpose is load balance between the two nodes in normal condition and collapsing to one node only in case of failure.

Thank you!
Eddie

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