Software limitationsThis section includes the following topics:Limitations on using shared LUNsLimitations related to installation and upgradeLimitations in the Backup mode Access Appliance IPv6 limitationsFTP limitationsLimitations related to commands in a non-SSH environmentLimitations related to Veritas Data DeduplicationKernel-based NFS v4 limitationsFile system limitationAccess Appliance S3 server limitationLong-term data retention (LTR) limitationsLimitations related to upgradeLimitation related to replication