One active partition hosts the current OS, while another passive partition is reserved for upgrades. Each node uses an active-passive root partition scheme to make our consistent upgrades possible. Thankfully, the Cohesity upgrade avoids all those issues. We achieve that by maintaining a consistent system image across all the appliances in the field. When Cohesity gets a support call, our goal is to address the issue in the earliest possible time. Recovering from such failure scenarios can be a puzzle. Using these package managers for an enterprise quality system can result in an inconceivable number of permutations of libraries and executables (usually referred to as dependency hell). Those package managers have been known to cause problems when they move configuration files around, force daemons to use new libraries, or leave the system in an inconsistent state when interrupted. Linux users may be familiar with the common update workflows using yum or apt-get. ![]() In this post, we’ll go over how Cohesity’s upgrade process works and why designing upgrade right is so important for any enterprise-grade system. This same upgrade workflow is used for software upgrades, security updates, firmware upgrades, and even OS upgrades. To provide access to all the latest and greatest features with minimum disruption, Cohesity has developed a smooth and painless upgrade workflow. ![]() With fast innovation comes new releases packed with an ever growing list of new and updated features including dedup, compression, fully hydrated snapshots, software based encryption, mixed workloads, global search, analytics, and node by node cluster expansion.Īll this new functionality is great, but our customers also tell us that they don’t want to deal with frequent disruptive upgrades.
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