AnsweredAssumed Answered

PI Data Archive - Disk Volume Sizes

Question asked by antonbh on Nov 22, 2018
Latest reply on Nov 22, 2018 by Roger Palmen

Hi,

 

The PI online sizing guide also supplies recommended storage based on PI data points, scan rate compression etc.

 

OSIsoft also recommends 5 volumes for the Data Archive server - OS, Install, Archives, Event Queue and Backups. By default, the event queues are automatically written to the drive with the second-most available free space (provided >= 5GB is available).

 

Is there an optimum size for the Event Queue and Backup volumes, w.r.t the Data Archive volume? If, for example, I have a 5TB Archive Size (based on the online sizing tool), how would one size the other volumes (assuming the Backup volume will be for intermediate backups only, with these transferred to external drives)?

 

I gave seen some examples where the Event Queue disk size is only marginally smaller than the Data Archive size, which does not seem an optimal utilization of the available space.

 

Thanks!

Outcomes