DD OS: Network File System version 4 Client Backups to Data Domain receive Remote IO Error
Summary: A few Backup applications using NFSV4 Client backups to Data Domain receive Remote I/O Errors. Clients cannot resolve the same error.
Αυτό το άρθρο ισχύει για
Αυτό το άρθρο δεν ισχύει για
Αυτό το άρθρο δεν συνδέεται με κάποιο συγκεκριμένο προϊόν.
Δεν προσδιορίζονται όλες οι εκδόσεις προϊόντων σε αυτό το άρθρο.
Symptoms
This issue is due to the internal NFSV4 open file limit to a max value of 8000. Some backup applications cannot complete backup, and ongoing workload may fail with Remote I/O error.
Here is a sample of an error that can be seen in TCPDUMP taken from the client where the issue is happening:
Here is a sample of an error that can be seen in TCPDUMP taken from the client where the issue is happening:
NFS4ERR_RESOURCE
Cause
This issue is due to the Internal Hardware limit and as of September 2023, there is no proposed solution but an enhancement is in the works. The enhancement is dependent upon applications, customers, and their inability to prevent this from happening.
Resolution
Resolution for this has to be from the Backup application staggering backups or changing specific parameters on the application.
Additional Information
Historically, this issue can also be found from reviewing Data Domain bundles. Look at the day by day value of nfs4-openowner in the Statistics, and compare the alloc with Free and calculate the difference. If that value is greater than 8000, it is highly possible that this issue is encountered.
Επηρεαζόμενα προϊόντα
Data Backup & Protection Storage, Data Domain, Data Domain, DD OSΙδιότητες άρθρου
Article Number: 000217822
Article Type: Solution
Τελευταία τροποποίηση: 26 Ιουν 2025
Version: 6
Βρείτε απαντήσεις στις ερωτήσεις σας από άλλους χρήστες της Dell
Υπηρεσίες υποστήριξης
Ελέγξτε αν η συσκευή σας καλύπτεται από τις Υπηρεσίες υποστήριξης.