This section provides an overview of supported configurations and known limits for Qumulo Core.

Supported Configurations

Configuration Type Supported Value
  • FTP
  • FTPS
  • NFSv3
  • NFSv4.1
  • S3 API
  • SMB 2.002
  • SMB 2.1
  • SMB 3.0
  • SMB 3.1
  • SMB 3.1.1
Browser Google Chrome 80 (and higher)
Clients over SMB
  • macOS 10.14 (and higher)
  • Windows 7 (and higher)
Clients over NFS
  • macOS 10.14 (and higher)
  • Linux Kernel 2.6.x (and higher)
Linux Configuration Qumulo Core is up to date with all Ubuntu 20.04 security updates.
Domain-Functional Level Microsoft Windows Server 2008 R2 (and higher)
Kerberos V5 Encryption Types
  • RC4-HMAC-MD5
LDAP Servers OpenLDAP for Group Expansion
Python Version for qq CLI 3.8 (and higher)

Supported Switches

Qumulo Core requires switches that meet the following criteria:

  • Enterprise-grade
  • Fully non-blocking
  • Managed
  • Supports IPv6

Known Limits

Limit Type Maximum Value
On-Premises Cluster Size 265 nodes
Cloud Cluster Size 100 nodes
Floating IP Addresses for Each Node 10
NFS Exports 64,000
SMB Shares 40,000
Access Control Entries (ACEs) in an Access Control List (ACL) 200
NFS Groups 16, when not using LDAP or Active Directory for RFC 2307 attributes
Characters in Cluster Name 2-15, alphanumeric and hyphen (-)
Characters in Full Path (Path Name) 32,760 (limited by protocol)
Characters in File Path Component (File or Directory) 255 (limited by protocol)
Files in a Directory 4.3 billion
File Size 9 exabytes
Total Files 18 quintillion
Hard Links for Each File 1,024
LDAP Domains 1
Active Directory Domains 1
DNS Servers 3
Snapshots 40,000

4.3 billion

S3 Bucket Object Versions Unlimited (4,294,967,296 theoretical)
Total Replication Relationships 100
Usable Provisioned Capacity on Cluster 100%