1/22/2024 0 Comments Dell isilon support![]() Upgrade engineer performs reboots of nodes in a rolling manner.Remote Proactive upgrade engineer carries out pre-upgrade health check right before the upgrade.Rolling reboot or patch install that requires rolling reboot: Time in total: 1.5 hours for clusters with minimum amount of nodes (3-5) Data access disruption is expected throughout this stage. Upgrade engineer kicks off the Simultaneous upgrade.Simultaneous OneFS code upgrade: Time in total: 2 hours regardless of node count Please allow extra time for the upgrade to take in case any ad-hoc issues arise during any stage of the upgrade.Upgrade engineer performs post-upgrade health check to ensure the cluster is in good state.For an understanding of what impacts there are during a rolling upgrade, review the Client connections during rolling upgrades section of the OneFS Upgrade Planning and Process Guide available on the EMC Support site. Upgrade engineer begins the rolling upgrade.Rolling upgrade (OneFS, Node Firmware, and Drive firmware): Time in total: 2 hours for clusters with minimum amount of nodes (3-5) Before starting the upgrade, Remote Proactive upgrade engineer contacts the point of contact (Customer/CE) to update about pre-upgrade analysis, and if required, get permission to start upgrade.Remote Proactive Services engineer will make sure all the codes are available ( 10-20 minutes if the upgrade is done over WebEx or up to 2 hours if Remote Proactive Services will transfer the code over ESRS, also done days prior to the upgrade to ensure actual upgrade starts on scheduled time). ![]() ![]() Please note: Pre-Upgrade health checks are also performed during the scheduling phase (up to 2 weeks before the upgrade) Remote Proactive Services will perform pre-upgrade health checks for any activity that requires cluster reboots ( 15-30 minutes) this is usually done just before starting the upgrade.Below is the sequence with timing and potential impact: ![]()
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