Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.
reset_on_attempted_reserve
option enabled to force ESXi to conditionally reset reservation to a LUN to prevent a stuck reservation as a result of a hard crash of the fibre channel switch prior to attempting a path failover. This option enables ESXi to track attempted (SCSI-2) reservations, and if path failover is triggered with reservation on the path, NMP will send a LUN reset to clear it.reset_on_attempted_reserve
option on the Claim Rule for your IBM Storage Array, issue these esxcli
commands:esxcli storage nmp satp rule remove --satp VMW_SATP_ALUA --vendor IBM --model 2145
esxcli storage nmp satp rule add --satp VMW_SATP_ALUA --psp VMW_PSP_RR --vendor IBM --model 2145 --option reset_on_attempted_reserve
esxcli storage nmp satp rule remove --satp VMW_SATP_SVC --vendor IBM --model 2145
esxcli storage nmp satp rule add --satp VMW_SATP_SVC --psp VMW_PSP_FIXED --vendor IBM --model 2145 --option reset_on_attempted_reserve
esxcli
commands for ESX/ESXi 4.1 are slightly different:esxcli nmp satp deleterule --vendor IBM --model 2145 --satp VMW_SATP_SVC
esxcli nmp satp addrule --satp VMW_SATP_ALUA --psp VMW_PSP_RR --vendor IBM --model 2145 --option reset_on_attempted_reserve