HP 3PAR StoreServ 7400 2-node HP 3PAR Command Line Interface Administrator& - Page 166
Event Management, showeventlog, debug, msg Qfull
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Qlen Number of I/Os processed by QoS (including the number of I/Os delayed by QoS and number of I/Os processed by QoS without delay) You can filter by VVset by using the srstatvlun command. This can be useful in determining which VVs in a given VVset contribute the most in reaching the QoS limit. Using the statqos interface, the On-Node tool in HP 3PAR System Reporter samples QoS statistics periodically, and stores this information for all active QoS rules. The srstatqos command will report the statistics for the QoS rules for one or more VVsets for any desired time window. The high resolution sampling extracts QoS statistics data in 5-minute periods. srstatqos options mirror the options of other srstat commands. Event Management There is no mechanism to alert storage administrators of rejected I/O requests. Instead, monitor the QoS rules as described in "Reporting" (page 164). The debug event logs will show QFULL messages for rejected I/O requests if they occur. To display the debug event log, issue the following HP 3PAR CLI command: # showeventlog -debug -msg Qfull The following example shows a rejected I/O request: Time : 2013-06-03 14:04:23 CEST Severity : Debug Type : Host error Message : Port 0:1:1 -- SCSI status 0x28 (Qfull) Host:ireland.bel.hp.com (WWN 50060B0000C26612) LUN:2 LUN WWN:60002AC000000000000000AC000009AD VV:0 CDB:28002552AA4000002000 (Read10) Skey:0x00 (No sense) asc/q:0x00/00 (No additional sense information) VVstat:0x00 (TE_PASS -- Success) after 0.000s (-) toterr:9720, lunerr:2 166 HP Priority Optimization