Thomas Vogt’s IT Blog

HP-UX Increase Veritas cluster filesystem (CFS) online

Overview

The following steps are needed to online increase a Veritas CFS (cluster file system) on a HP-UX MC/Serviceguard cluster.

Environment

OS: HP-UX B.11.31 (Cluster: Serviceguard 11.18)

Server: BL860c
Storage: EVA8000

Disk Devices: c1t6d3, c1t6d4
Disk Group: unix5dg
Volume: u05vol

Installed Software


# swlist | grep -i veritas

Base-VxFS-50 B.05.00.01 Veritas File System Bundle 5.0 for HP-UX
Base-VxTools-50 B.05.00.01 VERITAS Infrastructure Bundle 5.0 for HP-UX
Base-VxVM-50 B.05.00.01 Base VERITAS Volume Manager Bundle 5.0 for HP-UX


# swlist | grep -i serviceguard

B5140BA A.11.31.02 Serviceguard NFS Toolkit
T1905CA A.11.18.00 Serviceguard
T8687CB A.02.00 HP Serviceguard Cluster File System for RAC with HAOE

Installed Licenses


# vxdctl license

All features are available:
Mirroring
Root Mirroring
Concatenation
Disk-spanning
Striping
RAID-5
VxSmartSync
Array Snapshot Integration Feature
Clustering-full
FastResync
DGSJ
Site Awareness
DMP (multipath enabled)
CDS
Hardware assisted copy

CFS Cluster Overview


# cfscluster status

Node : node1
Cluster Manager : up
CVM state : up (MASTER)
MOUNT POINT TYPE SHARED VOLUME DISK GROUP STATUS
/u05 regular u05vol unix5dg MOUNTED

Node : node2
Cluster Manager : up
CVM state : up
MOUNT POINT TYPE SHARED VOLUME DISK GROUP STATUS
/u05 regular u05vol unix5dg MOUNTED


# vxdisk list

DEVICE TYPE DISK GROUP STATUS
c1t6d3 auto:cdsdisk unix5disk01 unix5dg online shared
c1t6d4 auto:cdsdisk unix5disk02 unix5dg online shared

Steps to increase filesystem

1. Old disk size


# bdf

/dev/vx/dsk/unix5dg/u05vol 18874368 173433 17532255 1% /u05 (-> size: 18GB, used: 173 MB)

2. Increase LUN size on EVA

c1t6d3: from 10GB to 50GB
c1t6d3: from 10GB to 50GB

3. Rescan devices


# ioscan –fnC disk


4. Find CVM master node


# vxdctl –c mode

master: node1

5. Increase VX-Disks (on CVM master node)


# vxdisk resize c1t6d3
# vxdisk resize c1t6d4


6. Show max size to increase volume


# vxassist –g unix5dg maxgrow u05vol


7. Increase volume (to 90 GB)


# vxassist –g unix5dg growto u05vol 90g


8. Find CFS master node


# fsclustadm –v showprimary /u05

node1

9. Increase filesystem (on CFS master node)


# fsadm –F vxfs –b 90g /u05


10. Show new filesystem size


# bdf

/dev/vx/dsk/unix5dg/u05vol 94371840 173433 94198407 0% /u05 (-> size: 90GB, used: 173 MB)

Useful information

http://docs.hp.com/en/hpux11iv3.html

April 27, 2010 Posted by thomasvogt | Clustering, HP, HP-UX, Unix | 1 Comment

MC/Serviceguard Cluster on HP-UX 11.31

HP Serviceguard is specialized software for protecting mission-critical applications from a wide variety of hardware and software failures. With Serviceguard, multiple servers (nodes) and/or server partitions are organized into an enterprise cluster that delivers highly available application services to LAN-attached clients. HP Serviceguard monitors the health of each node and rapidly responds to failures in a way that minimizes or eliminates application downtime.



This article describes the installation steps for a MC/Serviceguard Cluster Installation on two HP-UX Servers.

Environment:

Server 1:

Hardware: HP Integrity rx4640

OS: HP-UX B.11.31

Servername: boston.vogtnet.com

Stationary IP: 172.16.18.30 (lan0)

Heartbeat IP: 10.10.1.30 (lan1)

Standby: (lan2)

Lock Disk: VG: /dev/vglock

PV: /dev/disk/disk12

Server 2:

Hardware: HP Integrity rx4640

OS: HP-UX B.11.31

Servername: denver.vogtnet.com

Stationary IP: 172.16.18.31 (lan0)

Heartbeat IP: 10.10.1.31 (lan1)

Standby: (lan2)

Lock Disk: VG: /dev/vglock

PV: /dev/disk/disk12

Storage:

HP Enterprise Virtual Array EVA8000 SAN

Cluster Installation Steps

1. Configure /etc/hosts

-> on boston.vogtnet.com:

# vi /etc/hosts

—————————————-

# boston

172.16.18.30 boston.vogtnet.com boston

10.10.1.30 boston.vogtnet.com boston

127.0.0.1 localhost loopback

# denver

172.16.18.31 denver.vogtnet.com denver

10.10.1.31 denver.vogtnet.com denver

—————————————-

-> on denver.vogtnet.com

# vi /etc/hosts

—————————————-

# denver

172.16.18.31 denver.vogtnet.com denver

10.10.1.31 denver.vogtnet.com denver

127.0.0.1 localhost loopback

# boston

172.16.18.30 boston.vogtnet.com boston

10.10.1.30 boston.vogtnet.com boston

—————————————-

2. Set $SGCONF (on both nodes)

# vi ~/.profile

—————————————-

SGCONF=/etc/cmcluster

export SGCONF

—————————————-

# echo $SGCONF

/etc/cmcluster

3. Configure ~/.rhosts (for rcp, don’t use in secure envs)

-> on boston.vogtnet.com

# cat ~/.rhosts

denver root

-> on denver.vogtnet.com

# cat ~/.rhosts

boston root

4. Create the $SGCONF/cmclnodelist

(every node in the cluster must be listed in this file)

# vi $SGCONF/cmclnodelist

—————————————-

boston root

denver root

—————————————-

#rcp cmclnodelist denver:/etc/cmcluster/

5. Configure Heartbeat IP (lan1)

-> on boston.vogtnet.com

# vi /etc/rc.config.d/netconf

—————————————-

INTERFACE_NAME[1]=”lan1″

IP_ADDRESS[1]=”10.10.1.30″

SUBNET_MASK[1]=”255.255.255.0″

BROADCAST_ADDRESS[1]=””

INTERFACE_STATE[1]=””

DHCP_ENABLE[1]=0

INTERFACE_MODULES[1]=””

—————————————-

-> on denver.vogtnet.com

# vi /etc/rc.config.d/netconf

—————————————-

INTERFACE_NAME[1]=”lan1″

IP_ADDRESS[1]=”10.10.1.31″

SUBNET_MASK[1]=”255.255.255.0″

BROADCAST_ADDRESS[1]=””

INTERFACE_STATE[1]=””

DHCP_ENABLE[1]=0

INTERFACE_MODULES[1]=””

—————————————-

Restart Network:

# /sbin/init.d/net stop

# /sbin/init.d/net stop

# ifconfig lan1

lan1: flags=1843<UP,BROADCAST,RUNNING,MULTICAST,CKO>

inet 10.10.1.30 netmask ffffff00 broadcast 10.10.1.255

6. Disable the Auto Activation of LVM Volume Groups (on bot nodes)

# vi /etc/lvmrc

—————————————-

AUTO_VG_ACTIVATE=0

—————————————-

7. Lock Disk

( The lock disk is not dedicated for use as the cluster lock; the disk can be

employed as part of a normal volume group with user data on it. The

cluster lock volume group and physical volume names are identified in

the cluster configuration file. )

However, in this cluster we use a dedicated Lock Volume Group so we are sure this VG will never be deleted.

As soon as this VG is registered as lock disk in the cluster configuration, it will be automatically marked as cluster aware.

Create a LUN on the EVA and present it to boston and denver.

boston.vogtnet.com:

# ioscan -N -fnC disk

disk 12 64000/0xfa00/0x7 esdisk CLAIMED DEVICE HP HSV210

/dev/disk/disk12 /dev/rdisk/disk12

# mkdir /dev/vglock

# mknod /dev/vglock/group c 64 0x010000

# ll /dev/vglock

crw-r–r– 1 root sys 64 0x010000 Jul 31 14:42 group

# pvcreate -f /dev/rdisk/disk12

Physical volume “/dev/rdisk/disk12” has been successfully created.

// Create the VG with the HP-UX 11.31 agile Multipathing instead of LVM Alternate Paths.

# vgcreate /dev/vglock /dev/disk/disk12

Volume group “/dev/vglock” has been successfully created.

Volume Group configuration for /dev/vglock has been saved in /etc/lvmconf/vglock.conf

# strings /etc/lvmtab

/dev/vglock

/dev/disk/disk12

# vgexport -v -p -s -m vglock.map /dev/vglock

# rcp vglock.map denver:/

denver.vogtnet.com:

# mkdir /dev/vglock

# mknod /dev/vglock/group c 64 0x010000

# vgimport -v -s -m vglock.map vglock

–> Agile Multipathing of HP-UX 11.31 is not used by default after import (HP-UX 11.31 Bug ?!). The volume group uses alternate LVM Paths.

Solution:

# vgchange -a y vglock

// Remove Alternate Paths

# vgreduce vglock /dev/dsk/c16t0d1 /dev/dsk/c14t0d1 /dev/dsk/c18t0d1 /dev/dsk/c12t0d1 /dev/dsk/c8t0d1 /dev/dsk/c10t0d1 /dev/dsk/c6t0d1

// Add agile Path

# vgextend /dev/vglock /dev/disk/disk12

// Remove Primary Path

# vgreduce vglock /dev/dsk/c4t0d1

Device file path “/dev/dsk/c4t0d1” is an primary link.

Removing primary link and switching to an alternate link.

Volume group “vglock” has been successfully reduced.

Volume Group configuration for /dev/vglock has been saved in /etc/lvmconf/vglock.conf

# strings /etc/lvmtab

/dev/vglock

/dev/disk/disk12

# vgchange -a n vglock

// Backup VG

# vgchange -a r vglock

# vgcfgbackup /dev/vglock

Volume Group configuration for /dev/vglock has been saved in /etc/lvmconf/vglock.conf

# vgchange -a n vglock

8. Create Cluster Config (on boston.vogtnet.com)

# cmquerycl -v -C /etc/cmcluster/cmclconfig.ascii -n boston -n denver

# cd $SGCONF

# cat cmclconfig.ascii | grep -v "^#"

——————————————————————-

CLUSTER_NAME cluster1

FIRST_CLUSTER_LOCK_VG /dev/vglock

NODE_NAME denver

NETWORK_INTERFACE lan0

HEARTBEAT_IP 172.16.18.31

NETWORK_INTERFACE lan2

NETWORK_INTERFACE lan1

STATIONARY_IP 10.10.1.31

FIRST_CLUSTER_LOCK_PV /dev/dsk/c16t0d1

NODE_NAME boston

NETWORK_INTERFACE lan0

HEARTBEAT_IP 172.16.18.30

NETWORK_INTERFACE lan2

NETWORK_INTERFACE lan1

STATIONARY_IP 10.10.1.30

FIRST_CLUSTER_LOCK_PV /dev/disk/disk12

HEARTBEAT_INTERVAL 1000000

NODE_TIMEOUT 2000000

AUTO_START_TIMEOUT 600000000

NETWORK_POLLING_INTERVAL 2000000

NETWORK_FAILURE_DETECTION INOUT

MAX_CONFIGURED_PACKAGES 150

VOLUME_GROUP /dev/vglock

———————————————————————————–

-> Change this file to:

———————————————————————————–

CLUSTER_NAME MCSG_SAP_Cluster

FIRST_CLUSTER_LOCK_VG /dev/vglock

NODE_NAME denver

NETWORK_INTERFACE lan0

STATIONARY_IP 172.16.18.31

NETWORK_INTERFACE lan2

NETWORK_INTERFACE lan1

HEARTBEAT_IP 10.10.1.31

FIRST_CLUSTER_LOCK_PV /dev/disk/disk12

NODE_NAME boston

NETWORK_INTERFACE lan0

STATIONARY_IP 172.16.18.30

NETWORK_INTERFACE lan2

NETWORK_INTERFACE lan1

HEARTBEAT_IP 10.10.1.30

FIRST_CLUSTER_LOCK_PV /dev/disk/disk12

HEARTBEAT_INTERVAL 1000000

NODE_TIMEOUT 5000000

AUTO_START_TIMEOUT 600000000

NETWORK_POLLING_INTERVAL 2000000

NETWORK_FAILURE_DETECTION INOUT

MAX_CONFIGURED_PACKAGES 15

VOLUME_GROUP /dev/vglock

———————————————————————————–

# cmcheckconf -v -C cmclconfig.ascii

Checking cluster file: cmclconfig.ascii

Checking nodes … Done

Checking existing configuration … Done

Gathering storage information

Found 2 devices on node denver

Found 2 devices on node boston

Analysis of 4 devices should take approximately 1 seconds

0%—-10%—-20%—-30%—-40%—-50%—-60%—-70%—-80%—-90%—-100%

Found 2 volume groups on node denver

Found 2 volume groups on node boston

Analysis of 4 volume groups should take approximately 1 seconds

0%—-10%—-20%—-30%—-40%—-50%—-60%—-70%—-80%—-90%—-100%

Gathering network information

Beginning network probing (this may take a while)

Completed network probing

Checking for inconsistencies

Adding node denver to cluster MCSG_SAP_Cluster

Adding node boston to cluster MCSG_SAP_Cluster

cmcheckconf: Verification completed with no errors found.

Use the cmapplyconf command to apply the configuration.

# cmapplyconf -v -C cmclconfig.ascii

Checking cluster file: cmclconfig.ascii

Checking nodes … Done

Checking existing configuration … Done

Gathering storage information

Found 2 devices on node denver

Found 2 devices on node boston

Analysis of 4 devices should take approximately 1 seconds

0%—-10%—-20%—-30%—-40%—-50%—-60%—-70%—-80%—-90%—-100%

Found 2 volume groups on node denver

Found 2 volume groups on node boston

Analysis of 4 volume groups should take approximately 1 seconds

0%—-10%—-20%—-30%—-40%—-50%—-60%—-70%—-80%—-90%—-100%

Gathering network information

Beginning network probing (this may take a while)

Completed network probing

Checking for inconsistencies

Adding node denver to cluster MCSG_SAP_Cluster

Adding node boston to cluster MCSG_SAP_Cluster

Marking/unmarking volume groups for use in the cluster

Completed the cluster creation

// Deactivate the VG (vglock will be activated from cluster daemon)

# vgchange -a n /dev/vglock

9. Start the Cluster (on boston.vogtnet.com)

# cmruncl -v

cmruncl: Validating network configuration…

cmruncl: Network validation complete

Waiting for cluster to form ….. done

Cluster successfully formed.

Check the syslog files on all nodes in the cluster to verify that no warnings occurred during startup.

# cmviecl -v

MCSG_SAP_Cluster up

NODE STATUS STATE

denver up running

Cluster_Lock_LVM:

VOLUME_GROUP PHYSICAL_VOLUME STATUS

/dev/vglock /dev/disk/disk12 up

Network_Parameters:

INTERFACE STATUS PATH NAME

PRIMARY up 0/2/1/0 lan0

PRIMARY up 0/2/1/1 lan1

STANDBY up 0/3/2/0 lan2

NODE STATUS STATE

boston up running

Cluster_Lock_LVM:

VOLUME_GROUP PHYSICAL_VOLUME STATUS

/dev/vglock /dev/disk/disk12 up

Network_Parameters:

INTERFACE STATUS PATH NAME

PRIMARY up 0/2/1/0 lan0

PRIMARY up 0/2/1/1 lan1

STANDBY up 0/3/2/0 lan2

10. Cluster Startup Shutdown

// Automatic Startup:

/etc/rc.config.d/cmcluster

AUTOSTART_CMCLD=1

// Manuel Startup

# cmruncl -v

// Overview

# cmviewcl -v

// Stop Cluster

# cmhaltcl -v

Serviceguard Manager (sgmgr)

Serviceguard Manager is a graphical user interface that provides configuration, monitoring, and administration of Serviceguard. Serviceguard Manager can be installed on HP‑UX, Red Hat Linux, Novell SUSE Linux, Novell Linux Desktop or Microsoft Windows.

More Information:

http://h71028.www7.hp.com/enterprise/cache/4174-0-0-0-121.html?jumpid=reg_R1002_USEN

August 26, 2008 Posted by thomasvogt | Clustering, HP, HP-UX, Unix | 22 Comments

# yum install rhn-virtualization-common rhn-virtualization-host kernel-xen-devel virt-manager

# yum groupinstall Virtualization

# virt-install -x ks=http://lungo.pool/cblr/kickstarts/rhel51-x86_64_smbxen/ks.cfg

Would you like a fully virtualized guest (yes or no)?  This will allow you to run unmodified operating systems. no

 What is the name of your virtual machine? smbxen

 How much RAM should be allocated (in megabytes)? 1024

 What would you like to use as the disk (path)? /dev/vg_xen/lv_smbxen

 Would you like to enable graphics support? (yes or no) yes

 What is the install location? http://lungo.pool/cblr/links/rhel51-x86_64/   

Starting install...

Retrieving Server...                                            651 kB 00:00

Retrieving vmlinuz...     100% |=========================| 1.8 MB    00:00

Retrieving initrd.img...  100% |=========================| 5.2 MB    00:00

Creating domain...                                                 0 B 00:00

VNC Viewer Free Edition 4.1.2 for X - built Jan 15 2007 10:33:11

# ln -s /etc/xen/[guest_name] /etc/xen/auto/

# virt-manager

# xm list

# xm create [guest-config]

# xm console [guest_name]

# xm shutdown [guest_name]

# xm destroy [guest_name]

# xm top

# virsh
virsh # help 

Commands:

    autostart       autostart a domain
    capabilities    capabilities
    connect         (re)connect to hypervisor
    console         connect to the guest console
    create          create a domain from an XML file
    start           start a (previously defined) inactive domain
    destroy         destroy a domain
    define          define (but don't start) a domain from an XML file
    domid           convert a domain name or UUID to domain id
    domuuid         convert a domain name or id to domain UUID
    dominfo         domain information
    domname         convert a domain id or UUID to domain name
    domstate        domain state
    dumpxml         domain information in XML
    help            print help
    list            list domains
    net-autostart   autostart a network
    net-create      create a network from an XML file
    net-define      define (but don't start) a network from an XML file
    net-destroy     destroy a network
    net-dumpxml     network information in XML
    net-list        list networks
    net-name        convert a network UUID to network name
    net-start       start a (previously defined) inactive network
    net-undefine    undefine an inactive network
    net-uuid        convert a network name to network UUID
    nodeinfo        node information
    quit            quit this interactive terminal
    reboot          reboot a domain
    restore         restore a domain from a saved state in a file
    resume          resume a domain
    save            save a domain state to a file
    schedinfo       show/set scheduler parameters
    dump            dump the core of a domain to a file for analysis
    shutdown        gracefully shutdown a domain
    setmem          change memory allocation
    setmaxmem       change maximum memory limit
    setvcpus        change number of virtual CPUs
    suspend         suspend a domain
    undefine        undefine an inactive domain
    vcpuinfo        domain vcpu information
    vcpupin         control domain vcpu affinity
    version         show version
    vncdisplay      vnc display
    attach-device   attach device from an XML file
    detach-device   detach device from an XML file
    attach-interface attach network interface
    detach-interface detach network interface
    attach-disk     attach disk device
    detach-disk     detach disk device

# virsh start [guest_name]

 # tar -zxvf HPDMmultipath-3.0.0.tar.gz
 # cd HPDMmultipath-3.0.0/RPMS
 # rpm -ivh HPDMmultipath-tools[version]-[Linux-Version]-[ARCH].rpm

 # vim /etc/multipath.conf

defaults {
        udev_dir                /dev
        polling_interval        10
        selector                "round-robin 0"
        path_grouping_policy    failover
        getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
        prio_callout            "/bin/true"
        path_checker            tur
        rr_min_io               100
        rr_weight               uniform
        failback                immediate
        no_path_retry           12
        user_friendly_names     yes
}

devnode_blacklist {
        devnode         "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
        devnode         "^hd[a-z]"
        devnode         "^cciss!c[0-9]d[0-9]*"
}

devices {

device {
        vendor                  "HP|COMPAQ"
        product                 "HSV1[01]1 \(C\)COMPAQ|HSV2[01]0"
        path_grouping_policy    group_by_prio
        getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
        path_checker            tur
        path_selector           "round-robin 0"
        prio_callout            "/sbin/mpath_prio_alua /dev/%n"
        rr_weight               uniform
        failback                immediate
        hardware_handler        "0"
        no_path_retry           12
}

device {
        vendor                  "HP"
        product                 "OPEN-.*"
        path_grouping_policy    multibus
        getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
        path_selector           "round-robin 0"
        rr_weight               uniform
        prio_callout            "/bin/true"
        path_checker            tur
        hardware_handler        "0"
        failback                immediate
        no_path_retry           12
}

}

# multipath -ll
mpath0 (3600508b4001054a20001100001c70000)
[size=4.0G][features="1 queue_if_no_path"][hwhandler="0"]
\_ round-robin 0 [prio=200][active]
 \_ 0:0:1:1 sdd 8:48   [active][ready]
 \_ 0:0:3:1 sdj 8:144  [active][ready]
 \_ 1:0:2:1 sds 65:32  [active][ready]
 \_ 1:0:3:1 sdv 65:80  [active][ready]
\_ round-robin 0 [prio=40][enabled]
 \_ 0:0:0:1 sda 8:0    [active][ready]
 \_ 0:0:2:1 sdg 8:96   [active][ready]
 \_ 1:0:0:1 sdm 8:192  [active][ready]
 \_ 1:0:1:1 sdp 8:240  [active][ready]