Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.1(3a) (OL-17675-05 E0, March 2009)

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Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.1(3a)
OL-17675-05
Limitations and Restrictions
Cisco Storage Media Encryption
The following limitations are described for Cisco SME:
• Cisco SME Configuration Limits, page 41
• Deleting Cisco SME Interfaces, page 41
• Emulex Driver Version, page 41
Cisco SME Configuration Limits
Table 14 lists the Cisco SME configuration limits for this release.
Deleting Cisco SME Interfaces
A Cisco SME interface can be deleted from the cluster only after the interface is administratively
shut-down and all related tasks associated with the interface shut-down are complete.
Emulex Driver Version
In some instances, the Emulex driver version 8.1.10.9 may set the task attribute to HEAD_OF_QUEUE
instead of SIMPLE_QUEUE. Certain tape drives do not accept this attribute and may reject these
commands. The Emulex driver version 8.1.10.12 does not have this issue.
Table 14 Cisco SME Limits
Configuration Limit
Number of switches in the fabric 10
Number of clusters per switch 1
Switches in a cluster 4
Fabrics in a cluster 2
Modules in a switch 11
Cisco MSM-18/4 modules in a cluster 32
Initiator-Target-LUNs (ITLs) 1024
LUNs behind a target 32
Host and target ports in a cluster 128
Number of hosts per target 128
Tape backup groups per cluster 2
Volume groups in a tape backup group 4
Cisco Key Management Center (# of keys) 32K
Targets per switch that can be FC-redirected 32