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SANtricity upgrade may cause  a panic when many volumes are using SCSI persistent reservations

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Applies to

Netapp E-series SANtricity upgrade  pre 11.80

Issue

  1. When upgrading SANtricity on an  E-series system with volumes that are using SCSI PR (persistent reservation), Ancient IO on a SCSI PR may result in a panic. 
  2. In the E-Series support logs, the STATE-CAPTURE-DATA file reports the following exception under excLogShow.
  3. The SCSI operation code 0x5f is for persistant reservation OUT command.
--- Log Entry #188 (Core 2) Sep-26-2022 12:59:52 PM ----
Reboot due to ancient IO, scsiOp=0x1450b7d40 poolId=1 opCode=5f
 age=300000ms
 

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