Veritas Volume Manager 5.0 Release Notes (5900-0593, March 2010)

Veritas Volume Manager 5.0 Release Notes
Known Issues
Chapter 1 21
There is no option in the vxddladm command to display the current naming scheme. The
naming scheme that is in operation can be deduced from the output to the vxdisklist
command.
• vxdiskadm displays error V-5-1-9764 when excluding devices
The vxdiskadm operation displays error V-5-1-9764 if a vendor and product ID
combination are specified to exclude devices from multipathing. This error is harmless
and can be ignored. The error is not seen if controller or device names are specified
instead.
• Specifying an enclosure to the vxdmpadm getportids command
The enclosure attribute should be used to specify an enclosure name to the Vxdmpadm
getportids command, instead of the enclr attribute that is shown in the Veritas Volume
Manager Administrator’s Guide and the vxdmpadm (1M) manual page.
• Running vxdctl enable causes a core dump
The VxVM configuration daemon, vxconfigd, can dump core under rare conditions if the
vxdctl enable command is run on a system with an HDS array.
• Importing cloned discs does not work with the Full-VxVM license
You must install the Storage Foundation license to import cloned disk devices.
DMP Issues
• Default I/O policy
The default I/O policy for Active/Active (A/A) arrays has been changed from balanced to
minimum. The default I/O policy for Asymmetric Active/Active (A-A/A) and Active/Passive
(A/P) arrays has been changed from single active to round-robin.
• I/O is not restored on a path
If a path is re-enabled after a failback or a non-disruptive upgrade (NDU) operation, I/O
may not be restored on that path . To unblock I/O on the path, run the vxdiskscandisks
command.
• DMP obtains incorrect serial numbers
DMP cannot obtain the correct serial number for a device if its LUN serial number
contains a comma (,). This problem has been seen on EMC Symmetrix arrays with more
than 8096 LUNs.
• DMP threads appear as processes