HP 3PAR InForm OS 2.3.1 Extended MU5 Release Notes (QL226-96621, May 2013)

Table 1 Modifications to the InForm OS (continued)
DescriptionItemIssue ID
Stopping a Synchronous Remote Copy Group in the middle of re-sync phase following
the admission of additional volumes into that group can cause the cluster to go offline.
Cluster goes offline
following a Synch
65775
Remote Copy Group
Stop operation.
When selecting a RAID 5 and NL drive combination, a warning message appears
suggesting that RAID 6 would provide better availability and reliability for NL drives.
The user can override the warning message by using the -f option.
RAID 5 and Nearline
(NL) drive warning
message.
65997
An issue that may cause an HP 3PAR storage system to become unavailable during
the initial sync of volumes greater than 400 GB is resolved.
An HP 3PAR storage
system can become
66757
unavailable during the
initial synchronization of
large volumes.
Added support for 300 GB (SEGLE0300GBFC15K), 450 GB (SEGLE0450GBFC15K)
and 1 TB (SMSKP0001TBAT07K) drive in DC2 and DC4 cages.
New drive supported in
DC2, DC3 and DC4
cages.
72485
Added support for 300 GB (SEGLE0300GBFC15K) and 1 TB (SMSKP0001TBAT07K)
drive in DC3 cage.
Limitations of the InForm OS
Connectivity Issues with Remote Copy IP Interfaces for 100Mbps Switch Ports
HP has observed connectivity issues with Remote Copy IP interfaces connected to 100Mbps switch
ports that can cause the Remote Copy links to negotiate their speed and duplex settings incorrectly.
This issue has the potential to cause the Remote Copy IP links, as well as the connected switch ports,
to stop working (e.g., states of offline, down, unknown, loss_sync). In many cases, the HP controller-node
has to be rebooted to clear this condition.
In some configurations, depending on switch type and InForm OS version, selecting Auto-negotiation
has overcome the problem, while in others, forcing the ports to 100/Full has provided relief. In all
cases, utilizing a 1Gbps switch port has alleviated all negotiation issues.
To resolve this issue, HP requires all Remote Copy IP ports to be connected to a 1Gbps switch port in
order to alleviate the observed connectivity and negotiation related problems.
This reduction in functionality is described in Product_Alert_247 200011-RevA_RCIP_Link_Speed.
Known Issues with the InForm OS
Physical Copy Issue with Larger Destination Volume Size (Bug 55681)
The PblkRemain field describes how many physical blocks still remain to be copied from the parent
volume during the physical copy process. The number of blocks should always be positive. This bug
occurs when using a larger size destination volume than parent volume. The value of PblkRemain
is calculated using the size of the parent volume rather than the size of the destination volume.
Workaround
Use parent and destination volumes of the same size when creating physical copies.
4Gb/s 2-Port adapter Issue
The 4Gb/s 2-port Fibre Channel Adapter firmware does not detect a loss of sync when the host reboots
and has older adapters (ex: QLA2342) that do not turn off the laser.
Workaround
None.
HP 3PAR InForm Operating System Release Notes 9