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The IMOD editor permits users on multiple systems to share ISETs. ISETs and IMODs are protected by global enqueues. For this protection to be effective, all systems having access to the ISET must be members of a global resource serialization (GRS) ring or equivalent multi‑image manager.
When an IMOD is being edited by a user, other users can still browse the last‑saved copy.
When an ISET is being updated, an exclusive enqueue is obtained for QNAME IPGMGREX and RNAME F.dsn (dsn is the 44‑byte cluster name, right‑padded with blanks).
When an IMOD is being updated, an exclusive enqueue is obtained for QNAME IPGMGREX and RNAME P.imod.dsn (imod is the 16‑byte IMOD name, right‑padded with blanks; dsn is the 44‑byte cluster name, right‑padded with blanks).
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