We will assigne CDROM to VIO server and move CDROM to diffrent LPAR's
One of the common features normally available with HMC attached System p servers is the ability to use Dynamic Logical Partitioning (DLPAR) to add/move/remove I/O devices such as the CDROM or DVD controller between LPARs without taking an outage. The functionality required for DLPAR actions includes an active network connections between the LPARs and the HMC over port 657. If you have a virtual I/O (VIO) server partition that owns the DVD controller then you can run a few simple commands on the VIO server to allow you to map cd0 from one client LPAR to another using virtual SCSI. The process to move cd0 from one logical partition to another using VIO server commands is illustrated below. The example assumes the user is logged in as padmin on VIO server:
1> Determine if the VIO server owns an optical device we use the lsdev command.
$ lsdev -type optical
name status description
cd0 Available IDE DVD-ROM Drive
- Determine if cd0 is already mapped to a client LPAR we use the lsmap command.
$ lsmap -all |more
SVSA Physloc Client Partition ID
--------------- -------------------------------------------- ------------------
vhost0 U9111.520.104797E-V1-C11 0x00000002
VTD vtscsi0
LUN 0x8100000000000000
Backing device rootvg2a
Physloc
SVSA Physloc Client Partition ID
--------------- -------------------------------------------- ------------------
vhost1 U9111.520.104797E-V1-C13 0x00000003
VTD vtscsi1
LUN 0x8100000000000000
Backing device rootvg3a
Physloc
VTD vtscsi2
LUN 0x8200000000000000
Backing device datavg3a
Physloc
- Looking through the "Backing device" section of each vhosts we do not see cd0 listed.
We could have run "lsmap -all | grep cd0" as a quick check as well.
- To assign device cd0 to LPAR ID 2 we first need to locate its associated virtual SCSI server (vhost) device from the output listed above. If you look at the "Client Partition ID" section of the lsmap output you can see that vhost0 is associated with partition ID 2 (hex 0x00000002).
2> - To make the virtual SCSI map of cd0 to LPAR ID 2, we use mkvdev as follows:
$ mkvdev -vdev cd0 -vadapter vhost0
vtopt0 Available
- To check to see if cd0 and vtopt0 show up under vhost0 resources we use lsmap.
$ lsmap -vadapter vhost0
SVSA Physloc Client Partition ID
--------------- -------------------------------------------- ------------------
vhost0 U9111.520.104797E-V1-C11 0x00000002
VTD vtopt0
LUN 0x8200000000000000
Backing device cd0===============>"now CDROM is presented to Vhost0"
Physloc U787A.001.DPM06E2-P4-D2
VTD vtscsi0
LUN 0x8100000000000000
Backing device rootvg2a
Physloc
NOTE=>By virtually mapping the DVD device cd0 to LPAR 2's vhost, there is no need to make changes to the LPAR's profile or perform further actions such as DLPAR functions from the HMC. The cd0 device is now ready for the client LPAR to use.
NOTE=>If the LPAR is already in a running state, the cfgmgr command would need to be run as root on the client LPAR so the new device could be configured. If the LPAR is not activated then once it is started, the DVD device will be available for performing installation or maintenance functions on the LPAR.
MOVING CDROM to Different LPAR's if its presented to VIO server and assigned to LPAR-
======================================================================================
Once LPAR 2 is finished using the DVD, it can then be removed and mapped to a different LPAR if desired.
$ rmdev -dev vtopt0 -recursive ===========>will remove CDROM from, vtopt0 is the name of existing CDROM.
vtopt0 deleted
$ mkvdev -vdev cd0 -vadapter vhost1 ==========>moved cdrom to vhost1
vtopt0 Available
$ lsmap -vadapter vhost1
SVSA Physloc Client Partition ID
--------------- -------------------------------------------- ------------------
vhost1 U9111.520.104797E-V1-C13 0x00000003
VTD vtopt0
LUN 0x8500000000000000
Backing device cd0
Physloc U787A.001.DPM06E2-P4-D2
VTD vtscsi1
LUN 0x8100000000000000
Backing device rootvg3a
Physloc
VTD vtscsi2
LUN 0x8200000000000000
Backing device datavg3a
Physloc
The process of virtual mapping of the optical device, cd0, between client LPARs of a VIO server is
much simpler than trying to perform DLPAR related functions to achieve the same result since all
the interaction takes place on the VIO server command line.
Tuesday, September 11, 2012
Mounting ISO in AIX
How do I use dd command to create an ISO image?
Put CD into CDROM
Do not mount CD. Verify if cd is mounted or not with mount command:
# mount
If cd was mouted automatically unmout it with umount command:
# umount /dev/cdrom
OR
# umount /mnt/cdrom
Create CD-ROM ISO image with dd command:
# dd if=/dev/cdrom of=/tmp/cdimg1.iso
Mounting ISO in AIX-
Starting in AIX 6.1, you can use the loopmount command to create a loopback device and mount an ISO directly:
#loopmount -i cdrom.iso -o “-V cdrfs -o ro” -m /mnt
And, loopumount unmounts the ISO and removes the loopback device:
#loopumount -i cdrom.iso -o "/mnt"
There are a couple of gotcha's, but nothing unusual. An ISO can only be associated with one loopback device at a time,
the mount is only readonly, and it's not supported in WPARs.
There is another way to mount those images, but it's not a one-step process.
What you need to do is create a LV at least as big as your ISO image,
then copy the ISO data to that LV, and then mount the LV:
#mklv -y cdlv -s n rootvg 704M hdisk0
#dd if=cdrom.iso of=/dev/cdlv
#mount -v cdrfs -o ro /dev/cdlv /mnt
Put CD into CDROM
Do not mount CD. Verify if cd is mounted or not with mount command:
# mount
If cd was mouted automatically unmout it with umount command:
# umount /dev/cdrom
OR
# umount /mnt/cdrom
Create CD-ROM ISO image with dd command:
# dd if=/dev/cdrom of=/tmp/cdimg1.iso
Mounting ISO in AIX-
Starting in AIX 6.1, you can use the loopmount command to create a loopback device and mount an ISO directly:
#loopmount -i cdrom.iso -o “-V cdrfs -o ro” -m /mnt
And, loopumount unmounts the ISO and removes the loopback device:
#loopumount -i cdrom.iso -o "/mnt"
There are a couple of gotcha's, but nothing unusual. An ISO can only be associated with one loopback device at a time,
the mount is only readonly, and it's not supported in WPARs.
There is another way to mount those images, but it's not a one-step process.
What you need to do is create a LV at least as big as your ISO image,
then copy the ISO data to that LV, and then mount the LV:
#mklv -y cdlv -s n rootvg 704M hdisk0
#dd if=cdrom.iso of=/dev/cdlv
#mount -v cdrfs -o ro /dev/cdlv /mnt
Solaris-Remote-RSC-setup-v890
SUN ships the 890s with the rsc disabled. The easiest way to set it up is
with "rscadm". To make sure the RSC software is installed:
cd /local/RSC/
pkgadd -G -d . SUNWrsc
pkgadd -G -d . SUNWrscd
pkgadd -G -d . SUNWrscj
# pkginfo | grep rsc
system SUNWrsc Remote System Control
system SUNWrscd Remote System Control User Guide
system SUNWrscj Remote System Control GUI
Porcedure - I
To enable the rsc:
# pwd
/usr/platform/SUNW,Sun-Fire-V890/rsc
# ./rscadm useradd admin
# ./rscadm userperm admin cuar
# ./rscadm userpassword admin
and set a password
Set the network console's network parameters:
# ./rscadm set ip_mode config
# ./rscadm set ip_addr xx.xx.xx.xx
# ./rscadm set ip_netmask xx.xx.xx.xx
# ./rscadm set ip_gateway xx.xx.xx.xx
# ./rscadm set hostname hostname
# ./rscadm date 113011402005.00
# ./rscadm set escape_char # . (note: it is # space .)
# ./rscadm resetrsc
Porcedure - II
OR USE rsc-config script to configure above setting--
Log in as root and run the command:
#/usr/platform/SUNW,Sun-Fire-880/rsc/rsc-config.
bash-3.00# /usr/platform/SUNW,Sun-Fire-880/rsc/rsc-config
Continue with RSC setup (y|n): y
Set RSC date/time now (y|n|?) [y]:
Server Hostname [torzone01]:
Edit customer info field (y|n|?) [n]:
Enable RSC Ethernet Interface (y|n|s|?) [n]: y
RSC IP Mode (config|dhcp|?) [dhcp]: config
RSC IP Address []: 10.1.5.34
RSC IP Netmask [255.255.255.0]: 255.255.0.0
RSC IP Gateway []: 10.1.32.167
Enable RSC Alerts (y|n|s|?) [n]:
Enable RSC Serial Port Interface (y|n|s|?) [n]: y
Serial port baud rate (9600|19200|38400|57600|115200) [9600]:
Serial port data bits (7|8) [8]:
Serial port parity (even|odd|none) [none]:
Serial port stop bits (1|2) [1]:
Setup RSC User Account (y|n|?) [y]:
Username []: admin
User Permissions (c,u,a,r|none|?) [cuar]:
--------------------
Verifying Selections
--------------------
Is this correct (y|n): y
This script will now update RSC, continue? (y|n): y
Updating flash, this takes a few minutes
........................................
........................................
...........................
Download completed successfully
Resetting RSC (takes about 90 seconds): DONE
Setting up server to update RSC date on boot: DONE
Setting up server hostname: DONE
Setting up ethernet interface: DONE
Disabling RSC alert engine: DONE
Disabling modem interface: DONE
Setting up serial port interface: DONE
Adding user to RSC:
A valid password is between 6 and 8 characters, has at least
two alphabetic characters, and at least one numeric or special
character. The password must differ from the user's login name
and any reverse or circular shift of that login name.
Setting User Password Now ...
Password:
Re-enter Password:
User has been added to RSC
Resetting RSC (takes about 90 seconds):
Are you sure you want to reboot RSC (y/n)? y
DONE
Setting up RSC date: DONE
*******************************
RSC has been successfully setup
*******************************
STEPS to redirecting console to RSC---
Access the system from physical console to get OK prompt :
-Type the following commands at the system ok prompt:
ok diag-console rsc
ok setenv input-device rsc-console
ok setenv output-device rsc-console
ok reset-all
The system permanently stores the new settings. The changes will take effect after the next reset.
with "rscadm". To make sure the RSC software is installed:
cd /local/RSC/
pkgadd -G -d . SUNWrsc
pkgadd -G -d . SUNWrscd
pkgadd -G -d . SUNWrscj
# pkginfo | grep rsc
system SUNWrsc Remote System Control
system SUNWrscd Remote System Control User Guide
system SUNWrscj Remote System Control GUI
Porcedure - I
To enable the rsc:
# pwd
/usr/platform/SUNW,Sun-Fire-V890/rsc
# ./rscadm useradd admin
# ./rscadm userperm admin cuar
# ./rscadm userpassword admin
and set a password
Set the network console's network parameters:
# ./rscadm set ip_mode config
# ./rscadm set ip_addr xx.xx.xx.xx
# ./rscadm set ip_netmask xx.xx.xx.xx
# ./rscadm set ip_gateway xx.xx.xx.xx
# ./rscadm set hostname hostname
# ./rscadm date 113011402005.00
# ./rscadm set escape_char # . (note: it is # space .)
# ./rscadm resetrsc
Porcedure - II
OR USE rsc-config script to configure above setting--
Log in as root and run the command:
#/usr/platform/SUNW,Sun-Fire-880/rsc/rsc-config.
bash-3.00# /usr/platform/SUNW,Sun-Fire-880/rsc/rsc-config
Continue with RSC setup (y|n): y
Set RSC date/time now (y|n|?) [y]:
Server Hostname [torzone01]:
Edit customer info field (y|n|?) [n]:
Enable RSC Ethernet Interface (y|n|s|?) [n]: y
RSC IP Mode (config|dhcp|?) [dhcp]: config
RSC IP Address []: 10.1.5.34
RSC IP Netmask [255.255.255.0]: 255.255.0.0
RSC IP Gateway []: 10.1.32.167
Enable RSC Alerts (y|n|s|?) [n]:
Enable RSC Serial Port Interface (y|n|s|?) [n]: y
Serial port baud rate (9600|19200|38400|57600|115200) [9600]:
Serial port data bits (7|8) [8]:
Serial port parity (even|odd|none) [none]:
Serial port stop bits (1|2) [1]:
Setup RSC User Account (y|n|?) [y]:
Username []: admin
User Permissions (c,u,a,r|none|?) [cuar]:
--------------------
Verifying Selections
--------------------
Is this correct (y|n): y
This script will now update RSC, continue? (y|n): y
Updating flash, this takes a few minutes
........................................
........................................
...........................
Download completed successfully
Resetting RSC (takes about 90 seconds): DONE
Setting up server to update RSC date on boot: DONE
Setting up server hostname: DONE
Setting up ethernet interface: DONE
Disabling RSC alert engine: DONE
Disabling modem interface: DONE
Setting up serial port interface: DONE
Adding user to RSC:
A valid password is between 6 and 8 characters, has at least
two alphabetic characters, and at least one numeric or special
character. The password must differ from the user's login name
and any reverse or circular shift of that login name.
Setting User Password Now ...
Password:
Re-enter Password:
User has been added to RSC
Resetting RSC (takes about 90 seconds):
Are you sure you want to reboot RSC (y/n)? y
DONE
Setting up RSC date: DONE
*******************************
RSC has been successfully setup
*******************************
STEPS to redirecting console to RSC---
Access the system from physical console to get OK prompt :
-Type the following commands at the system ok prompt:
ok diag-console rsc
ok setenv input-device rsc-console
ok setenv output-device rsc-console
ok reset-all
The system permanently stores the new settings. The changes will take effect after the next reset.
Solairs V210 ILOM configuration from OS
sc> setsc sc_escapechars ## (for example)
hostname console login:
#. ---> switch from console to ALOM
Copyright 2004 Sun Microsystems, Inc. All rights reserved.
Use is subject to license terms.
Sun(tm) Advanced Lights Out Manager 1.5.4 (hostname)
Please login: admin
Please Enter password: **********
Cannot login to the ALOM?
Try default password which is the last 8 digits of the chassis serial number. Username is admin.
sc> setsc set if_network true
sc> setsc netsc_dhcp false
sc> setsc netsc_ipaddr 192.168.etc.etc
sc> setsc netsc_ipnetmask 255.255.255.etc
sc> setsc netsc_ipgateway 192.168.etc.etc
sc> resetsc
Are you sure you want to reset the SC [y/n]? y
For some platforms, like SunFire V240 and V440, ALOM can be configured from OS level using scadm utility.
To reset the ALOM password for "admin" use:-
---> /usr/platform/`uname -i`/sbin/scadm userpassword admin
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set if_network true
Enable Ethernet link integrity test:
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_tpelinktest true
Enable backup of local user database (username, passwords, permissions) on system configuration card.
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set sc_backupuserdata true
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_dhcp false
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_ipaddr 192.168.etc.etc
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_ipnetmask 255.255.255.etc
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_ipgateway 192.168.etc.etc
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm resetrsc
/usr/platform/SUNW,Sun-Fire-V240/sbin> ./scadm shownetwork
IP Address: 192.168.etc.etc
Gateway address: 192.168.etc.etc
Netmask: 255.255.255.etc
Ethernet address: 00:00:00:00:00:00
hostname console login:
#. ---> switch from console to ALOM
Copyright 2004 Sun Microsystems, Inc. All rights reserved.
Use is subject to license terms.
Sun(tm) Advanced Lights Out Manager 1.5.4 (hostname)
Please login: admin
Please Enter password: **********
Cannot login to the ALOM?
Try default password which is the last 8 digits of the chassis serial number. Username is admin.
sc> setsc set if_network true
sc> setsc netsc_dhcp false
sc> setsc netsc_ipaddr 192.168.etc.etc
sc> setsc netsc_ipnetmask 255.255.255.etc
sc> setsc netsc_ipgateway 192.168.etc.etc
sc> resetsc
Are you sure you want to reset the SC [y/n]? y
For some platforms, like SunFire V240 and V440, ALOM can be configured from OS level using scadm utility.
To reset the ALOM password for "admin" use:-
---> /usr/platform/`uname -i`/sbin/scadm userpassword admin
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set if_network true
Enable Ethernet link integrity test:
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_tpelinktest true
Enable backup of local user database (username, passwords, permissions) on system configuration card.
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set sc_backupuserdata true
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_dhcp false
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_ipaddr 192.168.etc.etc
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_ipnetmask 255.255.255.etc
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm set netsc_ipgateway 192.168.etc.etc
/usr/platform/SUNW,Sun-Fire-V240/sbin/scadm resetrsc
/usr/platform/SUNW,Sun-Fire-V240/sbin> ./scadm shownetwork
IP Address: 192.168.etc.etc
Gateway address: 192.168.etc.etc
Netmask: 255.255.255.etc
Ethernet address: 00:00:00:00:00:00
Creating Zone from zone config file or Cloning Solaris Zone
The procedure I've used to clone zones are as follows.
Procedure
1. Export the configuration of the zone you want to clone/copy
# zonecfg -z zone1 export > zone2.cfg
2. Change the details of the new zone that differ from the existing one (e.g. IP address, data set names, network interface etc.)
# vi zone2.cfg
3. Create a new (empty, unconfigured) zone in the usual manner based on this configuration file
# zonecfg -z zone2 -f zone2.cfg
NOTE: if you get capped-memory resource error-- ( move the Capped-memory to the top of rlctl entry)
# zonecfg -z zone2 -f zone2.cfg
On line 28 of zone2.cfg:
The capped-memory resource or a related resource control already exists.
On line 29 of zone2.cfg:
Cannot set a resource-specific property from the global scope.
The ordering error in the generated output makes this statement incorrect, or
at least inaccurate, depending on the meaning of 'suitable'.
Workaround
Edit the exported script and move the rctl entry
after the capped-memory entry
4. Ensure that the zone you intend to clone/copy is not running
# zoneadm -z zone1 halt
5. Clone the existing zone
# zoneadm -z zone2 clone zone1
Cloning zonepath /export/zones/zone1...
This took around 5 minutes to clone a 1GB zone (see notes below)
6. Verify both zones are correctly installed
# zoneadm list -vi
ID NAME STATUS PATH
0 global running /
- zone1 installed /export/zones/zone1
- zone2 installed /export/zones/zone2
7. Boot the zones again (and reverify correct status)
# zoneadm -z zone1 boot
# zoneadm -z zone2 boot
# zoneadm list -vi
ID NAME STATUS PATH
0 global running /
5 zone1 running /export/zones/zone1
6 zone2 running /export/zones/zone2
8. Configure the new zone via its console (very important)
# zlogin -C zone2
Procedure
1. Export the configuration of the zone you want to clone/copy
# zonecfg -z zone1 export > zone2.cfg
2. Change the details of the new zone that differ from the existing one (e.g. IP address, data set names, network interface etc.)
# vi zone2.cfg
3. Create a new (empty, unconfigured) zone in the usual manner based on this configuration file
# zonecfg -z zone2 -f zone2.cfg
NOTE: if you get capped-memory resource error-- ( move the Capped-memory to the top of rlctl entry)
# zonecfg -z zone2 -f zone2.cfg
On line 28 of zone2.cfg:
The capped-memory resource or a related resource control already exists.
On line 29 of zone2.cfg:
Cannot set a resource-specific property from the global scope.
The ordering error in the generated output makes this statement incorrect, or
at least inaccurate, depending on the meaning of 'suitable'.
Workaround
Edit the exported script and move the rctl entry
after the capped-memory entry
4. Ensure that the zone you intend to clone/copy is not running
# zoneadm -z zone1 halt
5. Clone the existing zone
# zoneadm -z zone2 clone zone1
Cloning zonepath /export/zones/zone1...
This took around 5 minutes to clone a 1GB zone (see notes below)
6. Verify both zones are correctly installed
# zoneadm list -vi
ID NAME STATUS PATH
0 global running /
- zone1 installed /export/zones/zone1
- zone2 installed /export/zones/zone2
7. Boot the zones again (and reverify correct status)
# zoneadm -z zone1 boot
# zoneadm -z zone2 boot
# zoneadm list -vi
ID NAME STATUS PATH
0 global running /
5 zone1 running /export/zones/zone1
6 zone2 running /export/zones/zone2
8. Configure the new zone via its console (very important)
# zlogin -C zone2
dd command to create an ISO image
Put CD into CDROM
Do not mount CD. Verify if cd is mounted or not with mount command:
# mount
If cd was mouted automatically unmount it with umount command:
# umount /dev/cdrom
OR
# umount /mnt/cdrom
Create CD-ROM ISO image with dd command:
# dd if=/dev/cdrom of=/tmp/cdimg1.iso
Where,
# if=/dev/cdrom: Read from /dev/cdrom (raw format) of=/tmp/cdimg1.iso: write to FILE cdimg1.iso
i.e. create an ISO image
Do not mount CD. Verify if cd is mounted or not with mount command:
# mount
If cd was mouted automatically unmount it with umount command:
# umount /dev/cdrom
OR
# umount /mnt/cdrom
Create CD-ROM ISO image with dd command:
# dd if=/dev/cdrom of=/tmp/cdimg1.iso
Where,
# if=/dev/cdrom: Read from /dev/cdrom (raw format) of=/tmp/cdimg1.iso: write to FILE cdimg1.iso
i.e. create an ISO image
TOP command - Useful switch
TOP command useful switch--
1> Select - Press 'f' to select unselected parameteres ie SWAP.
1> Sort - To sort top output by any column, Press O (upper-case O)
2> Kill a Task Without Exiting From Top – Press k
3> Renice a Unix Process Without Exiting From Top – Press r
4> Display Selected User in Top Output Using top -u
5> Display All CPUs / Cores in the Top Output – Press 1 (one)
6> Change Refresh Interval - press d , default is 3 second
7> Highlight Running Processes in the Linux Top Command Output – Press z or b
8> Display Absolute Path of the Command and its Arguments – Press c
1> Select - Press 'f' to select unselected parameteres ie SWAP.
1> Sort - To sort top output by any column, Press O (upper-case O)
2> Kill a Task Without Exiting From Top – Press k
3> Renice a Unix Process Without Exiting From Top – Press r
4> Display Selected User in Top Output Using top -u
5> Display All CPUs / Cores in the Top Output – Press 1 (one)
6> Change Refresh Interval - press d , default is 3 second
7> Highlight Running Processes in the Linux Top Command Output – Press z or b
8> Display Absolute Path of the Command and its Arguments – Press c
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