HP 3PAR StoreServ 7450 2-node HP 3PAR StoreServ 7450 Storage Troubleshooting G - Page 47
PD Example 3, PD Suggested Action 3, FC 15K RPM disks > 200
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48 3:0:0 FC degraded 2:0:4 49 3:0:1 FC degraded 2:0:4 50 3:0:2 FC degraded 2:0:4 51 3:0:3 FC degraded 2:0:4 3:0:4\missing 2/3:0:4\missing 2/3:0:4\missing 2/3:0:4\missing 2/- cli% showcage -d cage3 Id Name LoopA Pos.A LoopB Pos.B Drives Temp RevA RevB Model Side 3 cage3 2:0:4 0 --- 0 32 29-41 2.37 2.37 DC2 n/a -----------Cage detail info for cage3 --------- Fibre Channel Info PortA0 PortB0 PortA1 PortB1 Link_Speed 2Gbps -- -- 0Gbps SFP Info FCAL SFP -State- --Manufacturer-- MaxSpeed(Gbps) TXDisable TXFault RXLoss DDM 0 0 OK SIGMA-LINKS 2.1 No No No Yes 1 1 OK SIGMA-LINKS 2.1 No No Yes Yes Interface Board Info FCAL0 FCAL1 Link A RXLEDs Green Off Link A TXLEDs Green Off Link B RXLEDs Off Off Link B TXLEDs Off Green LED(Loop_Split) Off Off LEDS(system,hotplug) Green,Off Green,Off ... Drive Info LoopA----- ----LoopB----- Drive NodeWWN LED Temp(C) ALPA LoopState ALPA LoopState 0:0 20000014c3b3eab9 Green 35 0xe1 OK 0xe1 Loop fail 0:1 20000014c3b3e708 Green 38 0xe0 OK 0xe0 Loop fail 0:2 20000014c3b3ed17 Green 35 0xdc OK 0xdc Loop fail 0:3 20000014c3b3dabd Green 30 0xda OK 0xda Loop fail PD Example 3 Component Description Qty PD Disks experiencing a high level of I/O per second 93 Component --Identifier-- ---------Description---------- PD disk:100 Disk is experiencing a high level of I/O per second: 789.0 PD Suggested Action 3 This check samples the I/O per second (IOPS) information in statpd to see if any disks are being overworked, and then it samples again after five seconds. This does not necessarily indicate a problem, but it could negatively affect system performance. The IOPS thresholds currently set for this condition are: • NL disks > 75 • FC 10K RPM disks > 150 • FC 15K RPM disks > 200 • SSD > 1500 Operations such as servicemag and tunevv can cause this condition. If the IOPS rate is very high and/or a large number of disks are experiencing very heavy I/O, examine the system further Troubleshooting Storage System Components 47