|Article Number: 531449||Article Version: 7||Article Type: Break Fix|
XtremIO Family,XtremIO X2,XtremIO HW X2-R,XtremIO HW X2-R Encrypt Disable,XtremIO HW X2-S,XtremIO HW X2-S Encrypt Disable,XtremIO HW X2-T,XtremIO HW X2-T Encrypt Disable
An XtremIO X2 cluster experiences one or multiple software module failures, which may result in:
An XtremIO software issue which may trigger one or multiple software module failures due to extensive logging of buffer overruns within the log files of one or more Storage Controllers (SCs) following the reception of massive I/O bursts by one or more of the target ports residing on the SCs in question.
A permanent fix involving less aggressive logging of buffer overruns is available within XtremIO software versions 6.2.0-81 and above.
As a general recommendation, host I/O requests should be equally distributed across all available target ports on XtremIO clusters, thereby preventing clusters from running out of resources for particular target ports and SC software modules by providing more channels and buffers to handle incoming I/O. If this is not the case (as can be confirmed by executing the show-targets-performance XMCLI command on the cluster in question), the necessary zoning changes should be made in order to accommodate the aforementioned recommendation.
The referenced software issue is tracked under XIO-59454 and is described within the latest XtremIO Storage Array XIOS Release Notes as follows:
An internal software module may time-out due to extensive message logging.