Storage Foundation software limitations

• Dynamic Multi-Pathing software limitations

  • DMP settings for NetApp storage attached environment

  • DMP support in AIX virtualization environment (2138060)

  • LVM volume group in unusable state if last path is excluded from DMP (1976620) ZFS pool in unusable state if last path is excluded from DMP (1976620)

• InfoScale Volume Manager software limitations

  • Snapshot configuration with volumes in shared disk groups and private disk groups is not supported (2801037)

  • SmartSync is not supported for Oracle databases running on raw VxVM volumes

  • Arctera InfoScale does not support thin reclamation of space on a linked mirror volume (2729563)

  • Thin reclamation requests are not redirected even when the ioship policy is enabled (2755982)

• File System (VxFS) software limitations

  • Recommended limit of number of files in a directory

  • The shell cannot handle 64-bit inode numbers inside the .checkpoint directory when uniqueino is enabled

  • The vxlist command cannot correctly display numbers greater than or equal to 1 EB

  • Limitations with delayed allocation for extending writes feature

• SmartIO software limitations

  • The sfcache operations may display error messages in the caching log when the operation completed successfully (3611158)

Replication software limitations

• Bunker replication configuration limitations

• VVR support for replicating across InfoScale Storage versions

• VVR Replication in a shared environment

• VVR IPv6 software limitations

Cluster Server software limitations

• Limitations related to bundled agents

  • Programs using networked services may stop responding if the host is disconnected

  • Volume agent clean may forcibly stop volume resources

  • False concurrency violation when using PidFiles to monitor application resources

  • Volumes in a disk group start automatically irrespective of the value of the StartVolumes attribute in VCS [2162929]

  • WPAR agent registered to IMF for Directory Online event

  • Application agent limitations

  • Campus cluster fire drill does not work when DSM sites are used to mark site boundaries [3073907]

  • Live Partition Mobility (LPM) of management LPAR is not supported

  • Mount agent reports resource state as OFFLINE if the configured mount point does not exist [3435266]

• Limitations related to VCS engine

  • Loads fail to consolidate and optimize when multiple groups fault [3074299]

  • Preferred fencing ignores the forecasted available capacity [3077242]

  • Failover occurs within the SystemZone or site when BiggestAvailable policy is set [3083757]

  • Load for Priority groups is ignored in groups with BiggestAvailable and Priority in the same group[3074314]

• Limitations related to IMF

• Limitations related to the VCS database agents

  • DB2 RestartLimit value [1234959]

  • Pluggable database (PDB) online may timeout when started after container database (CDB) [3549506]

• Systems in a cluster must have same system locale setting

• Limitations with DiskGroupSnap agent [1919329]

• Virtualizing shared storage using VIO servers and client partitions

  • Supported storage

  • Disk Restrictions

  • Accessing the same LUNs from Client Partitions on different Central Electronics Complex (CEC) modules

• Cluster Manager (Java console) limitations

• The operating system does not distinguish between IPv4 and IPv6 packet counts

• A service group that runs inside of a WPAR may not fail over when its network connection is lost

• Limitations related to LLT

  • LLT over IPv6 UDP cannot detect other nodes while Arctera InfoScale tries to form a cluster (1907223)

  • LLT does not start automatically after system reboot (2058752)

  • Limitation of LLT support over UDP or RDMA using alias IP [3622175]

• Limitations related to I/O fencing

  • Preferred fencing limitation when VxFEN activates RACER node re-election

  • Limitation with RDAC driver and FAStT array for coordinator disks that use raw disks

  • Stopping systems in clusters with I/O fencing configured

  • Uninstalling VRTSvxvm causes issues when VxFEN is configured in SCSI3 mode with dmp disk policy (2522069)

  • Node may panic if HAD process is stopped by force and then node is shut down or restarted [3640007]

• Limitations related to global clusters

• Clusters must run on VCS 6.0.5 and later to be able to communicate after upgrading to 2048 bit key and SHA256 signature certificates [3812313]

Storage Foundation Cluster File System High Availability software limitations

• cfsmntadm command does not verify the mount options (2078634)

• Upgrade of secure clusters not supported using native operating system tools

• Stale SCSI-3 PR keys remain on disk after stopping the cluster and deporting the disk group

• Unsupported FSS scenarios

Storage Foundation for Oracle RAC software limitations

• Supportability constraints for normal or high redundancy ASM disk groups with CVM I/O shipping and FSS (3600155)

• Limitations of CSSD agent

• Oracle Clusterware/Grid Infrastructure installation fails if the cluster name exceeds 14 characters

• Policy-managed databases not supported by CRSResource agent

• Health checks may fail on clusters that have more than 10 nodes

• Cached ODM not supported in Arctera InfoScale environments

Storage Foundation for Databases (SFDB) tools software limitations

• Parallel execution of vxsfadm is not supported (2515442)

• Creating point-in-time copies during database structural changes is not supported (2496178)

• Oracle Data Guard in an Oracle RAC environment