HP Integrity Virtual Machines Release Notes Version A.03.50

Note the following example:
# ioscan -fne
PciDev
| PCIFtn
| |(Addr(Target Id) % 16) <-> HP-UX tgt ID
PciBus | | |(Addr(Target Id) / 16) <-> HP-UX lun ID
| | | | |
V V V V V
disk 49 0/0/2/0.6.1 sdisk CLAIMED DEVICE HP Virtual Disk
/dev/dsk/c0t6d1 /dev/rdsk/c0t6d1
Acpi(PNP0A03,0)/Pci(2|0)/Scsi(Pun16,Lun0)
^ ^ ^ ^
| | | |
PciBus | PCIFtn Addr(Target Id)
|
PciDev
In this example, exp1 / exp2 represents the quotient from exp1 divided by exp2 (integer
division), and exp1 % exp2 finds modulo of exp1 divided by exp2 (that is, finds the remainder
of an integer division).
2. get_info option of the gvsdmgr utility
If you are using the HP-UX DSF, the following gvsdmgr option can be used to get the VSD
LUN ID, which is the same as the Addr (Target Id) in the hpvmstatus display. The gvsdmgr
utility displays VSD LUN Id as a hexidecimal number. The first nibble of VSD LUN Id
becomes HP-UX lun ID, and the second nibble becomes HP-UX tgt ID. The following example
shows the get_info option with the gvdsmgr utility:
# gvsdmgr get_info -D /dev/gvsd0 -q lun=/dev/rdsk/c0t6d1
Tue Oct 2 13:35:32 2007
Lun DSF : /dev/rdsk/c0t6d1
VSD LUN Id : 0x16
Lun Hardware path : 0/0/2/0.6.1
LUN State : UNOPENED
8.5 Crash Dump Collection Might Fail for HP-UX Guests with Attached
I/O Devices
HP-UX guest OS crash might fail to save a crash dump with the following console message:
Error: can't open first dump device /dev/dsk/c0t0d0. Dump aborted.
INIT[0]: OS_INIT ends. Resetting the system
This problem is caused by the HP-UX MPT dump driver in the guest waiting only 1 second for
a bus reset to finish. If there is an attached tape or changer sharing the same virtual MPT adapter
as the guest boot disk, the reset time of that attached tape or changer might exceed the 1 second
timeout, resulting in the error message above.
To avoid this problem on HP-UX 11i v2 0505–0706 or HP-UX 11i v3 guests, make sure the guest
boot disk and any attached tape or changer do not share the same virtual MPT adapter. For
information about how to specify bus and device numbers to place the tapes or changers on a
separate MPT adapter than the guest boot disk, see the hpvmresources manpage or the HP Integrity
Virtual Machines Installation, Configuration, and Administration.
For HP-UX 11i v2 0712, HP-UX 11i v3 0803, and all later supported HP-UX guest releases, make
sure the HPVM-Guest depot is installed. The HPVM-Guest depot adjusts the MPT dump reset
timeout allowing for tape and changers to be placed on the same virtual MPT adapter as the boot
disk.
8.6 DMP Files Not Supported as Backing Stores
Veritas VxVM DMP device files (files under /dev/vx/rdmp/) are not supported by Symantec
for whole disk backing stores for virtual machines.
64 Storage Information