Sun Microsystems (SUNW) - Get Report pulled out of an IBM (IBM) - Get Report-backed open source storage initiative.

In an announcement late Wednesday, Sun said it has withdrawn from the Aperi initiative, an open source project for storage management.

Sun ascribed its withdrawal from the initiative, of which it was an early supporter, to the fact that it was not run under the jurisdiction of an industry group like the Storage Network Industry Association.

"Sun believes the storage industry requires a concerted and standards-based effort that can only be achieved through a governance model provided by the SNIA," read the statement.

By working with the SIA, Sun said it could be assured that end-user requirements would be taken into account and that the resulting open source standards would be adopted by the storage community.

A representative of IBM was not immediately available for comment.

IBM launched Aperi (derived from the Latin word for "opening") in October 2005, with the aim of creating a set of industry standards for storage management applications. Noticeably absent from the founding members of the group was storage heavyweight

EMC

(EMC)

, as well as

Hewlett-Packard

(HPQ) - Get Report

, and

Hitachi Data Systems

(HIT)

.

EMC later claimed not to have been invited to join the initiative.