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[Linux-cluster] clvmd and exclusive locking



I do not understand how the vgchange/lvchange -aey option gets "enforced" on other nodes that might want to compete for the same clustered VG/lvol resource.  For example, node A exclusively locks and mounts -t ext3 /dev/VGBOOTA/lvol0, but on node B, I can can still lock & mount the same volume -- what gives?  Shouldn't the clvmd disallow such attempts?  Is there a guide that someone can refer me to for such answers?

TIA.


Robert Hurst, Sr. Caché Administrator
Beth Israel Deaconess Medical Center
1135 Tremont Street, REN-7
Boston, Massachusetts   02120-2140
617-754-8754 ∙ Fax: 617-754-8730 ∙ Cell: 401-787-3154
Any technology distinguishable from magic is insufficiently advanced.

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