Centos 4 32 bit - New kernel ethX MAC address order issue Post: 302605435

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Operating Systems Linux Red Hat Centos 4 32 bit - New kernel ethX MAC address order issue Post 302605435 by mark54g on Wednesday 7th of March 2012 11:42:40 AM

03-07-2012

Registered User

The next reboot, the udev rules are loaded appropriately based on PCI Bus ID, forcing the names to exist as intended.

PCI slots do not reorder themselves. This is especially an important distinction when dealing with enterprises that have a custom configuration, that for the purposes of homogony and manageability require this level of consistency.

I'm not pulling this out of my rump, it is what the last few companies I have worked for have done, specifically to make sure that consistent device names were kept.

Using the PCI Bus ID will not change so long as the controller is not damaged or the slot is not changed, and it should not be. If it is, it is as simple as changing the persistent naming rule in udev, which would have been changed in the case of a failed card if you used MAC addresses instead of BUS ID, but this saves that effort if the slot is reused, so long as you don't add a controller with a different number of physical ports (like a 2 port NIC to a 4 port NIC). However, most field services reps will replace a failed card in the open slot the previous card had occupied, preventing an outage or problem.

Last edited by mark54g; 03-07-2012 at 01:42 PM.. Reason: clarity and additional info

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LEARN ABOUT NETBSD

adv

ADV(4)							   BSD Kernel Interfaces Manual 						    ADV(4)

NAME

     adv -- ConnectCom Solutions AdvanSys SCSI adapter driver

SYNOPSIS

     adv* at pci? dev ? function ?
     adv0 at isa? port ? irq ? drq ?
     adv* at cardbus? function ?
     scsibus* at adv?

DESCRIPTION

     The adv driver supports the following AdvanSys SCSI host adapters

   PCI bus
     Connectivity Products:
	   ABP920	Bus-Master PCI (16 CDB)
	   ABP930	Bus-Master PCI (16 CDB) (note 1)
	   ABP930U	Bus-Master PCI Ultra (16 CDB)
	   ABP930UA	Bus-Master PCI Ultra (16 CDB)
	   ABP960	Bus-Master PCI MAC/PC (16 CDB) (note 2)
	   ABP960U	Bus-Master PCI MAC/PC Ultra (16 CDB) (note 2)

     Notes:
     1.   This board has been sold by SIIG as the Fast SCSI Pro PCI.
     2.   This board has been sold by Iomega as a Jaz Jet PCI adapter.

     Single Channel Products:
	   ABP940	Bus-Master PCI (240 CDB)
	   ABP940U	Bus-Master PCI Ultra (240 CDB)
	   ABP970	Bus-Master PCI MAC/PC (240 CDB)
	   ABP970U	Bus-Master PCI MAC/PC Ultra (240 CDB)
	   ABP940UW	Bus-Master PCI Ultra-Wide (240 CDB)

     Multi Channel Products:
	   ABP950	Dual Channel Bus-Master PCI (240 CDB Per Channel)
	   ABP980	Four Channel Bus-Master PCI (240 CDB Per Channel)
	   ABP980U	Four Channel Bus-Master PCI Ultra (240 CDB Per Channel)

   ISA bus
     Connectivity Products:
	   ABP510/5150	Bus-Master ISA (240 CDB) (note 1)
	   ABP5140	Bus-Master ISA (16 CDB) (note 1) (note 2)
	   ABP5142	Bus-Master ISA with floppy (16 CDB) (note 3)

     Notes:
     1.   This board has been shipped by HP with the 4020i CD-R drive.	The board has no BIOS so it cannot control a boot device, but it can con-
	  trol any secondary SCSI device.
     2.   This board has been sold by SIIG as the i540 SpeedMaster.
     3.   This board has been sold by SIIG as the i542 SpeedMaster.

     Single Channel Products:
	   ABP542	Bus-Master ISA with floppy (240 CDB)
	   ABP842	Bus-Master VL (240 CDB)

     Dual Channel Products:
	   ABP852	Dual Channel Bus-Master VL (240 CDB Per Channel)

SEE ALSO

     cd(4), ch(4), intro(4), isa(4), pci(4), scsi(4), sd(4), st(4)

     http://www.connectcom.net/

     http://www.siig.com/

HISTORY

     The adv device driver appeared in NetBSD 1.4.

AUTHORS

     Baldassare Dante Profeta <dante@mclink.it>

BSD
								   June 4, 1999 							       BSD