Brocade Fabric OS v7.0.2e Release Notes v1.0

Fabric OS v7.0.2e Release Notes v1.0 Page 27 of 53
• When disk and tape CTCs are hosted on the same encryption engine, re-keying cannot be done while
tape backup or restore operations are running. Re-keying operations must be scheduled at a time that
does not conflict with normal tape I/O operations. The LUNs should not be configured with auto rekey
option when single EE has disk and tape CTCs.
• Gatekeeper LUNs used by SYMAPI on the host for configuring SRDF/TF using in-band management
must be added to their containers with LUN state as “cleartext”, encryption policy as “cleartext” and
without “-newLUN” option.
• For new features added to encryption in FOS v6.4.0, such as, disk device decommissioning,
combined disk-tape encryption support on the same encryption engine, and redundant key ID
metadata option for replication environments, all the nodes in the encryption group must be running
FOS v6.4.0 or higher versions of FOS. Firmware downgrade will be prevented from FOS v6.4.0 to a
lower version if one or more of these features are in use.
• Special Notes for HP Data Protector backup/restore application
• Tape Pool encryption policy specification:
• On Windows Systems, HP Data Protector can be used with tape pool encryption
specification only if the following pool label options are used:
 Pick from Barcode
 User Supplied – Only 9 characters or less
For other options, behavior defaults to Tape LUN encryption policy.
• On HP-UX systems, HP Data Protector cannot be used with tape pool encryption
specification for any of the pool options. The behavior defaults to Tape LUN
Encryption Policy.
• Tape LUN encryption policy specification:
• No restrictions, tape LUN encryption policy specification can be used with HP Data
Protector on HP-UX and Windows systems.
• BES/FS8-18 will reject the SCSI commands WRITE SAME and EXTENDED COPY, which are related to
VAAI (vStorage APIs for Array Integration) hardware acceleration in vSphere 4.1. This will result in non-
VAAI methods of data transfer for the underlying arrays, and may affect the performance of VM related
operations.
FCIP (FR4-18i, Brocade 7800 and FX8-24)
• Any firmware activation will disrupt I/O traffic on FCIP links.
• Latency measurements supported on FCIP Tunnels:
o 1GbE & 10GbE - 200ms round trip time and 1% loss.
• After inserting a 4G SFP in GE ports of an FX8-24 blade or 7800 switch, sometimes “sfpshow”
output might display “Cannot read serial data!” . Removing and re-inserting the SFP should
resolve this issue. It is recommended that users perform sfpshow immediately after inserting
the SFP and ensure SFP is seated properly before connecting the cables.
• When running FOS v7.0.0 or later, if any of the following features are enabled in the FCIP
configuration, a downgrade operation to pre-FOS v7.0.0 will be blocked until the features are
removed from the FCIP configuration:
o InBand Management
o Multigigabit Circuit
o Shared GE among Logical Switches
o Auto-mode compression option