HP-UX unable to see new disk devices

[ramesh rajan]

Hardware RP4440
Storage Array: Hitachi Tagmastore USP600
SAN Switches: Brocade
HBA : HP Tachyon Cards /dev/td
Multipathing Software : HDLM
Operating System: HP-UX 11.11


This host is attached to SAN fibre channel network and had 10 Luns/disks added to it from the USP three months ago and everything was working fine. DBAs asked for more space and we added three more disks.

ioscan command was successful and showed up the three luns. Ran insf -e to create new device files. But when i tried to use HDLM software to create it reported an error that it is not seeing the devices. HDLM is out multi pathing driver. So I restarted the server.

After restart the server came up without the new luns/disks even though they were allocated in the storage array. So i removed the device files and restarted the server. Only one lun/disk among the three showed up and was usable and the remaining two were showing No_HW in the ioscan output.


I heard that this may be a bug. There are patches available to resolve this issue. Have any one heard about this kind of behavior that new luns added to the system not showing up even after reboot? If so pls tell me what did you do to fix this kind of problem

[B.MariappaN]

Hi,

PHSS_31326- this patch might help.

s700_800 11.11 Tachyon TL Fibre Channel Driver Patch.

Regards,
B.MariappaN

[hpuxrox]

Check your fiber