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23-8
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 23 Troubleshooting SANTap
SANTap Issues
Hosts, targets, HBAs or switches are not
supported by the interoperability matrix.
• Review the Cisco SANTap interoperability
matrix at
http://www.cisco.com/en/US/products/ps598
9/products_device_support_tables_list.html.
CVT is in the host VSAN. The CVT is the portal through which the
appliance communicates with SANTap, and
cannot be in the host VSAN.
IVR and SANTap are being used together. IVR and SANTap both perform straddling across
VSANs and cannot be used together.
VIs in a DVT VSAN (CVT and DVT in the same
VSAN).
This results in the creation of one CPP VI and
eight DPP VIs in the DVT VSAN. The VIs
attempt to login to DVT, resulting in
non-deterministic behavior.
Overprovisioning, including:
• Too many ITLs per SSM
• Too many hosts per DVT
• Too many ITLs per DPP
When replication is enabled, AVT LUNs are
created, and that can increase the ITL count over
the limit. (See “Limitations” section on
page 23-2.)
If Reservation Support is not enabled on the RPA:
• 26 AVT LUNs are created at a time.
• The appliance completes recovery of these
LUNs and then deletes them before creating
more.
• This behavior does not significantly increase
the ITL count.
If Reservation Support is enabled on the RPA:
• All AVT and AVT LUNs are permanently
created.
• In RPA 2.3, only half the appliance posts are
zoned with AVTs. This does not increase the
ITL count significantly.
• In RPA 2.4, all appliance ports are zoned with
AVTs. This behavior can increase the ITL
count significantly.
Same pWWN occurs more than once in the same
VSAN.
Misconfiguration can result in two DVTs (or two
VIs) with the same WWN in the same VSAN.
For example, assume that two DVTs are created
on different SSMs or on different DPPs. Both of
these DVTs have the same back-end VSAN.
When a host HBA logs into both DVTs, an
attempt is made to create two VIs with the same
WWN in the same back-end VSAN. This results
in non-deterministic behavior.
Table 23-3 Common SANTap Mismatch Problems (continued)
Problem Description
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