IRPStacksize still valid?

  I see another article asking this simple question and never answered. Applications such as BackUp Exec as well as random disconnects to iSCSI drives during our testing in 2012 R2 all suggest the ol' IRPStackSize value needs to get set (Symantec suggests
30 decimal). Why are we having this basic networking problem in 2012R2 64bit OS & 10GB Nic's? Is this value still valid to use in newer OS's?
 

Hi Partner,
Sorry for the delayed response.
Based on my research, I'm sorry that currently it appears that there is not an official documentation which describes the IRPStackSize in newer Server OS, like Windows Server 2012/2012 R2. However, I find a related article which suggests the recommended
value of IRPStackSize on Windows Server 2012 systems. You can use it for a reference, especially the "[Windows]: IrpStackSize should have the recommended value" section.
Best-Practices Remediation Tips for Server 2012 Pt I
https://www.myotherpcisacloud.com/post/2012/11/11/Best-Practices-Remediation-Tips-for-Server-2012-Pt-I.aspx
[Please Note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.]
At the meantime, we can follow the steps below to determining an appropriate size of IRPStackSize:
1. Set the value from 20, increase the value even more
-- Generally, the IRPStackSize value range is from 11 (0xb hexadecimal) to 50 (0x32 hexadecimal).
2. IRPStackSize registry key name is case sensitive
3. When you set the value, restart the Server service instead of rebooting system
Hopefully this can help.
Feel free to let me know if you have any questions. Thanks for your time.
Best Regards,
Sophia Sun
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