Configuring Ipl From A Scsi Device; Ipl The Scsi Disk - Red Hat ENTERPRISE LINUX 4 - INSTALLATION GUIDE FOR IBM S-390 AND IBM ESERVER ZSERIES Installation Manual

Appendix F. Additional Information for S/390 and zSeries Users
Working Devices : 4
Failed Devices : 0
Spare Devices : 3
Number Major
0 8
1 8
2 8
3 8
UUID : 4b564608:fa01c716:550bd8ff:735d92dc
Events : 0.1
Another feature of
mdadm
path in a multipath configuration) to be removed from an operating configuration. In the
following example,
/dev/sda1
back into the configuration. For a multipath configuration, these actions would not affect any I/O
activity taking place at the time:
# mdadm /dev/md0 -f /dev/sda1
mdadm: set /dev/sda1 faulty in /dev/md0
# mdadm /dev/md0 -r /dev/sda1
mdadm: hot removed /dev/sda1
# mdadm /dev/md0 -a /dev/sda1
mdadm: hot added /dev/sda1
#

4. Configuring IPL from a SCSI Device

Anaconda (the installation program) supports the direct installation of Red Hat Enterprise Linux
to SCSI devices. This section includes information on how to IPL from a SCSI device within
z/VM.

4.1. IPL the SCSI Disk

To IPL the SCSI disk, we provide the WWPN and LUN to the machine loader using the
command.
LOADDEV
set loaddev portname 50050763 00c18154 lun 57190000 00000000
Ready; T=0.01/0.01 15:47:53q loaddev
PORTNAME 50050763 00C18154
BR_LBA 00000000 00000000
Ready; T=0.01/0.01 15:47:56
IPL the SCSI disk using the FCP device defined to the guest.
q fcp
00: FCP 010A ON FCP
72
Minor RaidDevice State
49 0
17 1
33 2
1 3
is the ability to force a device (be it a member of a RAID array or a
is flagged as being faulty, is then removed, and finally is added
LUN 57190000 00000000
010ACHPID C1 SUBCHANNEL = 0000
active sync /dev/sdd1
spare /dev/sdb1
spare /dev/sdc1
spare /dev/sda1
BOOTPROG 0
SET