HP 4400 HP B-series Fabric OS 6.4.1b Release Notes (5697-0886, March 2011-incl - Page 65

Fabric OS 6.4.0c fixes, Table 11 Fabric OS 6.4.0b closed defects

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Table 11 Fabric OS 6.4.0b closed defects (continued) Closed defect summary Solution 1606 SAN Extension Switch does not support the Path Down function in IM2 Fixed in Fabric OS 6.4.0b. mode. Fabric becomes unstable and segments when one leg of a TI Zone with failover disabled is disrupted. Tape pipelining I/O errors were observed when forcing a drop of last data Fixed in Fabric OS 6.4.0b. frame. Tape I/O stops when tape pipelining is enabled. Fixed in Fabric OS 6.4.0b. Workaround prior to upgrade: Disable, or do not enable tape pipelining. Fabric OS 6.4.0c fixes Table 12 (page 65) lists defects closed in the Fabric OS 6.4.0c firmware release. Table 12 Fabric OS 6.4.0c closed defects Closed defect summary Solution In a setup with 8Gb switches running exchanged-base routing policy, routes Fixed in Fabric OS 6.4.0c. are not being properly rebalanced after a trunk group loses a member. This Workaround prior to upgrade: can lead to sluggish performance on 8Gb switches, if there is a slow drain Keep trunk groups with equal bandwidth. device using the lower bandwidth link to further congest the fabric. On 8Gb switches, constant link resets occur when a long-distance E_Port is configured that requires 128 to 511 credits. These link resets occur continuously with no traffic; a constant stream of C2-5021 indications is seen. Fixed in Fabric OS 6.4.0c. Workaround prior to upgrade: Use OOS mode. Switch panics, blade faults, or switches are getting disabled when credit loss Fixed in Fabric OS 6.4.0c. is detected on internal backend port. RASLOG C-5021 or C2-5021 indications are reported. FCIP tunnel bounces on workload start, causing traffic disruption. Fixed in Fabric OS 6.4.0c. Workaround prior to upgrade: Enable some sort of FICON emulation (XRC or Tape Read/Write Pipelining). When Lossless DLS is enabled, HA failover cause newly active CP to disable Fixed in Fabric OS 6.4.0c. the switch or cause switch panic. If switch is disabled, the ports remain disabled and the user has to enable the switch manually. The Haenable command is not auto rebooting the standby CP when the Fixed in Fabric OS 6.4.0c. standby CP is removed and reseated or replaced. As a result, the active and Workaround prior to upgrade: backup CP end up out of synch. Reboot the standby CP manually. During tape reads, dropping the first and middle data frames results in a connection timeout error, while dropping the last frame results in a hung host. FICON block count mismatch in tape read emulation (FCIP link). Fixed in Fabric OS 6.4.0c. Fixed in Fabric OS 6.4.0c. Workaround prior to upgrade: Disable or do not enable FICON emulation. Unable to form an ISL with a 2Gb multiprotocol router with a switch running Fixed in Fabric OS 6.4.0c. Fabric OS 6.4.0 firmware. Workaround prior to upgrade: Connect the multiprotocol router to a switch running a release earlier than Fabric OS 6.4.0. Fabric OS 6.4.0c fixes 65

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Table 11 Fabric OS 6.4.0b closed defects
(continued)
Solution
Closed defect summary
Fixed in Fabric OS 6.4.0b.
1606 SAN Extension Switch does not support the Path Down function in IM2
mode. Fabric becomes unstable and segments when one leg of a TI Zone
with failover disabled is disrupted.
Fixed in Fabric OS 6.4.0b.
Tape pipelining I/O errors were observed when forcing a drop of last data
frame.
Fixed in Fabric OS 6.4.0b.
Workaround prior to upgrade:
Disable, or do not enable tape
pipelining.
Tape I/O stops when tape pipelining is enabled.
Fabric OS 6.4.0c fixes
Table 12 (page 65)
lists defects closed in the Fabric OS 6.4.0c firmware release.
Table 12 Fabric OS 6.4.0c closed defects
Solution
Closed defect summary
Fixed in Fabric OS 6.4.0c.
Workaround prior to upgrade:
Keep trunk groups with equal bandwidth.
In a setup with 8Gb switches running exchanged-base routing policy, routes
are not being properly rebalanced after a trunk group loses a member. This
can lead to sluggish performance on 8Gb switches, if there is a slow drain
device using the lower bandwidth link to further congest the fabric.
Fixed in Fabric OS 6.4.0c.
Workaround prior to upgrade:
Use OOS mode.
On 8Gb switches, constant link resets occur when a long-distance E_Port is
configured that requires 128 to 511 credits. These link resets occur
continuously with no traffic; a constant stream of C2-5021 indications is
seen.
Fixed in Fabric OS 6.4.0c.
Switch panics, blade faults, or switches are getting disabled when credit loss
is detected on internal backend port. RASLOG C-5021 or C2-5021
indications are reported.
Fixed in Fabric OS 6.4.0c.
Workaround prior to upgrade:
Enable some sort of FICON emulation
(XRC or Tape Read/Write Pipelining).
FCIP tunnel bounces on workload start, causing traffic disruption.
Fixed in Fabric OS 6.4.0c.
When Lossless DLS is enabled, HA failover cause newly active CP to disable
the switch or cause switch panic. If switch is disabled, the ports remain
disabled and the user has to enable the switch manually.
Fixed in Fabric OS 6.4.0c.
Workaround prior to upgrade:
Reboot the standby CP manually.
The
Haenable
command is not auto rebooting the standby CP when the
standby CP is removed and reseated or replaced. As a result, the active and
backup CP end up out of synch.
Fixed in Fabric OS 6.4.0c.
During tape reads, dropping the first and middle data frames results in a
connection timeout error, while dropping the last frame results in a hung
host.
Fixed in Fabric OS 6.4.0c.
Workaround prior to upgrade:
Disable or do not enable FICON
emulation.
FICON block count mismatch in tape read emulation (FCIP link).
Fixed in Fabric OS 6.4.0c.
Workaround prior to upgrade:
Connect the multiprotocol router to a
switch running a release earlier than
Fabric OS 6.4.0.
Unable to form an ISL with a 2Gb multiprotocol router with a switch running
Fabric OS 6.4.0 firmware.
Fabric OS 6.4.0c fixes
65