Friday, June 10, 2016

SharePoint 2016: Drives are at risk of running out of free space


Performing routine check on system health, you discover the following warning in the farm's Health Reports:
TitleDrives are at risk of running out of free space.
Severity2 - Warning
ExplanationAvailable drive space is less than five times the value of physical memory. This is dangerous because it does not provide enough room for a full memory dump with continued operation. It also could cause problems with the Virtual Memory swap file: [failing drives]
RemedyExamine the failing servers and delete old logs or free space on the drives. For more information about this rule, see 
Failing Servers[a farm WFE]
Failing ServicesSPTimerService (SPTimerV4)
Rule SettingsView
You check system drive and find that available space is 5 x greater than configured RAM.  rrr


  • This rule checks for drive space exceeding 5 x configured system memory.  It executes as all or nothing, meaning that all server drives must meet the 5 x threshold and if any one is deficient then the warning is triggered.  You can of course disable the rule.  However, another approach available to you if your farm servers are virtualized is to go ahead and configure the failing drive or drives as managed with increased disk space: while SharePoint sees a larger drive, the hypervisor only allocates necessary drive space.  Thus there is no actual increase in resource usage.


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