HP EVA P6550 HP P6300/P6500 EVA User Guide (5697-2486, September 2013) - Page 144
iSCSI and FCoE thin provision handling, FCoE presented LUN reported as TP Overcommitted
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Page 144 highlights
iSCSI and FCoE thin provision handling iSCSI and FCoE presented LUNs which experience the thin provision (TP) Overcommitted state, as detected by P6000 Command View and illustrated in Figure 68 (page 144) will generally be write-protected until the Overcommitted state is cleared. However, there is a special case for Windows and Windows 2008 FCoE or iSCSI initiators, the TP Overcommitted LUNs are masked and manual intervention through P6000 Command View is required to remove the mask by re-presenting the LUN(s) to the iSCSI or FCoE initiator(s). Note that the TP Overcommitted mask state, only for the iSCSI and FCoE presented LUNs, is cleared by a restart of both of the iSCSI controllers. Figure 68 FCoE presented LUN reported as TP Overcommitted The masking is visible by navigating to the LUN's presentation tab as illustrated in Figure 69 (page 145), where it can be seen that the LUN is presented to the P6000 iSCSI Host port, but no longer to a iSCSI or FCoE initiator. A user may walk through the Virtual Disks tabs and note each TP Overcommited LUN and then present after the TP Overcommited state is cleared. Or a user may first clear the TP Overcommitted state and then walk through the Virtual Disks presentation tabs and re-present each LUN listed in the iSCSI HOST 01,02,03,04 lists which are found to no longer be presented to iSCSI or FCoE initiators. 144 iSCSI or iSCSI/FCoE configuration rules and guidelines
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