On Jan 24, 2011, at 8:12 PM, Eugene Vilensky wrote: > On Mon, Jan 24, 2011 at 9:07 PM, Darren Patterson > <[email protected]> wrote: >> Since rhel3 I have been making custom initrd files by removing hba drivers >> to ensure a SAN safe pxe/kickstart build. It used to be that a race >> condition could make a SAN presented device /dev/sda, instead of the first >> local scsi drive, and thus the OS would install there. >> >> Does anyone know if I should continue this practice with rhel6 initrd files >> or has this problem been resolved? > > > The Storage Administration Guide continues to read: > ------ > 21.3. Persistent Naming > The operating system issues I/O to a storage device by referencing the > path that is used to reach it. For SCSI devices, the path consists of > the following: > PCI identifier of the host bus adapter (HBA) > channel number on that HBA > the remote SCSI target address > the Logical Unit Number (LUN) > This path-based address is not persistent. It may change any time the > system is reconfigured (either by on-line reconfiguration, as > described in this manual, or when the system is shutdown, > reconfigured, and rebooted). It is even possible for the path > identifiers to change when no physical reconfiguration has been done, > as a result of timing variations during the discovery process when the > system boots, or when a bus is re-scanned. > ----- > > The "race condition" "problem" you are describing is more like a feature.
Well, since it is documented it must be a feature. Thanks for the gentle reminder to RTFM. -darren _______________________________________________ rhelv6-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv6-list
