AuriStor File System Comparison


Feature AuriStor Lustre NFS V4 OpenAFS
Single namespace Yes
Defaults to /afs
Yes Extension
Not widely available
Yes
Defaults to /afs
Access Control Lists File or Directory & Volume
Multi-factor AFS
File
POSIX
File
POSIX superset
Directory
Single-factor AFS
Distributed Architecture Yes Yes Yes Yes
Server platform support Multi-platform
Linux, Solaris, OSX, Windows Server
Linux
Solaris planned
Broad
Hummingbird Maestro Windows Server available
Multi-platform
Linux, Solaris, AIX, HP-UX, OSX
Volume Management Yes
Transparent movement of data without downtime
No
Online data migration via HSM extensions
Extension
Implementation dependent
Yes
Transparent movement of data without downtime
Volume snapshots Limited
One read only replica
One backup
No
Depends on host filesystem
No Limited
One read only replica
One backup
Quotas Volume
Total bytes
Object count
Yes
Total bytes
No Volume
Total bytes
POSIX Extended Attributes No
Planned (2016)
Yes Yes No
Locking Yes
Whole file
Mandatory and Advisory
Yes
No lockf/flock yet
Yes
Mandatory and Advisory
Yes
Whole file only
Advisory
Transport UDP IPv4 and IPv6 TCP IPv4 TCP UDP IPv4
Replication Volume
Read-Only
Read-Write (2016)
Local
RAID, not multi-server yet
Extension
Implementation specific
Volume
Read-Only
Object Storage Integration Yes
L-Store
Yes Extension
In pNFS/NFS v4.1
No
Location Independent Yes Yes
Object Storage Servers are transparent
No
Referrals offer limited functionality
Yes
Encryption Yes
AES-256
Yes
AES-256
Yes
AES-256
Poor
56-bit fcrypt
Authentication Yes
GSSAPI / Kerberos 5
Yes
GSSAPI / Kerberos 5
Yes
GSSAPI / Kerberos 5
Yes
Kerberos 4 and Kerberos 5
Combined Identities Yes
User and Machine
No No No
Multiplatform Yes
Linux, Windows, OSX, Solaris, iOS
No
Limited Windows pCIFS client. No Mac client yet.
Yes
Proprietary Windows client
Yes
Windows, Mac, Linux, most Unix variants.
Scalability Yes
Tens to hundreds of thousands of clients per server
Yes
30000 clients per node
Yes Yes
Hundreds to thousands of clients per server
Performance High
Limited by transport.
High
Optimized
Uses object-based storage
Varies
pNFS extension
Varies
Limited by transport
Open Source No
Source code licenses are available
Yes
GPL
Available
UMichigan CITI reference implementation is GPL
Yes
IBM Public License V1.0
Commercial Support Yes Yes
Oracle
Yes
Typically from OS vendor
Yes
AuriStor, Inc. and others