topic new device in Operating System - HP-UX

new device

Jannik Tonsberg_2 — Sun, 21 Dec 2003 18:41:38 GMT

why do device just get recreated for no reason at all.
crw-rw-rw- 2 bin bin 205 0x179000 Dec 19 19:13 15m
crw-rw-rw- 2 bin bin 205 0x104000 Dec 21 23:45 4m
crw-rw-rw- 2 bin bin 205 0x112000 Dec 22 00:20 5m
crw-rw-rw- 2 bin bin 205 0x104000 Dec 21 23:45 c16t4d0BEST
crw-rw-rw- 2 bin bin 205 0x112000 Dec 22 00:20 c17t2d0BEST
crw-rw-rw- 2 bin bin 205 0x179000 Dec 19 19:13 c23t9d0BEST

nobody was logged into the system.
I use dataprotector with LAN'les backup and have the tapes shared on the SAN. Anybody have a explanation?

Re: new device

Rajeev Shukla — Sun, 21 Dec 2003 18:59:26 GMT

All the devices which seems to have recreated like 15m, 4m and 5m are on different dates which i presume is because the hardware address is changing everytime for this device. When ever the path or hardware address changes the device will get recreated. And i wonder why is this happening, you'll have to look at your SAN, specially switches, or have you changed the port of the device on the switch, any changes in swicth post will also change the hardware address and that will recreate the device file.

Re: new device

Steven E. Protter — Sun, 21 Dec 2003 22:36:07 GMT

I have to agree with the previous post.

All the san admin has to do is change the Lun number from 8 to 9 and you get a new disk device.

These are however TAPE devices.

You may have an issue with the SCSI id of the tape drive. I'd check termination and the SCSI ID against the instructions posted on the tape drive.

SEP

Re: new device

Mohanasundaram_1 — Tue, 23 Dec 2003 06:20:24 GMT

Hi,

It looks like the problem is with the settings on the FC side.

It might be of help to look at a similar discussion as per the below URL,

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=219145

All the best.

With regards,
Mohan.