Intend to perform a on-disk format downgrade The target cluster to process conversion. Virtual SAN downgrade is requested, but Virtual SAN objects have alreadyĪny issue detected by pre-flight check, requires manual fix by end user,īefore trigger Virtual SAN upgrade process through PerformVsanUpgradeEx. There is Virtual SAN host doesn't have vSphere ESX 6.0u2 software ġ1. if Virtual deduplication and compression is srequested to enable, but hybrid disk group exists in Virtual SAN cluster, if Virtual deduplicationġ0. any in-use Virtual SAN disk is in unhealth status, such as physicalĩ. there is inaccessible Virtual SAN object in Virtual SAN datastore Ĩ. any Virtual SAN host contributes in the other Virtual SAN cluster ħ. not all Virtual SAN member hosts reside in specified vCenter cluster Ħ. network issue exists in Virtual SAN cluster, which leads to communicationĥ. any Virtual SAN host enables auto-mode to claim disk Ĥ. ESX host before vSphere 6.0 exists in Virtual SAN cluster, ofģ. any Virtual SAN host is disconnected from vCenter server Ģ. It deprecates API ,Īnd helps to check following issues which would break Virtual SAN upgradeġ. Perform an upgrade pre-flight check on a cluster. PerformVsanUpgradePreflightCheckEx(performUpgradePreflightCheck) Thrown if any type of runtime fault is thrown that is not covered by the other faults for example, a communication error. Have any advanced features supported by lower disk format. Spec cannot be supported in downgrade process, for now we don't The specification of advanced disk format configuration. Implies performObjectUpgrade being false. Internal debug option meant for functional testing Removes the need for one disk group worth ofįree space, by allowing reduced redundancy Only possible if no upgraded objects exist. Perform a on-disk format downgrade instead of Theĭefault behavior is upgrading objects is this Object upgrade unlocks new VSAN features. Of the on disk format is no longer possible. Required Privileges System.ReadĪfter all disk groups have been updated, also The pre-flightĬheck results indicate such a condition. Virtual SAN, the upgrade process can recover from that. Virtual SAN from a disk group, but before re-adding those disks to If the upgrade process stopped after removing The upgrade will resume where it left off and only do the parts thatĪre still outstanding. If the upgrade process has been halted due to a problem, or even due toĪ crash or other failure, it can be re-started at any point in time. The upgrade process performs additional "pre-flight checks" before The new object version is required to allow objects to benefit Object version however, downgrade (and thus rollback) are no longer The object version is upgraded, it is possible to downgrade the clusterīy passing the downgradeFormat parameter. Parameter is set, the Virtual SAN object version is also upgraded. Once all disk groups have been upgraded, and if the performObjectUpgrade The data from the disk group, then remove the old format from the nowĮmpty disk group, then reformat the disk group with the new format. In other words, one disk group at a time, it will evacuate Will perform a rolling evacuation/remove/re-add operation to accomplish In order to perform this on-disk format upgrade, the upgrade process It deprecates API ,īesides supporting original basic upgrade options, it also supportsĪdvanced disk format conversion spec, to convert Virtual SAN diskįormat to support corresponding Virtual SAN advanced features, suchĪs Virtual SAN deduplication and compression, etc. Start Virtual SAN disk format conversion on a particular cluster. PerformVsanUpgradeEx, PerformVsanUpgradePreflightCheckEx, RetrieveSupportedVsanFormatVersion It can be accessed with MOID vsan-upgrade-systemex through Virtual Version 3, released by Virtual SAN 6.2, which supports Virtual SAN Version 2, released by Virtual SAN 6.0, which supports Virsto file Version 1, released by Virtual SAN 1.0, vSphere ESX 5.5u1 It supports following Virtual SAN on-disk format versions: It has capability to support additional advanced disk formatĬonversion specification, to help on configuration of It deprecates vim.VsanUpgradeSystem, to take care of Virtual SAN VsanUpgradeSystemEx(vim.VsanUpgradeSystemEx) See also ClusterComputeResource, HostSystem, Task, VsanDiskFormatConversionCheckResult, VsanDiskFormatConversionSpec Since vSphere API 6.0
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