Posts Tagged ‘linux’

LVM Add Disk Resize/Extend Maximum Space

echo "- - -" > /sys/class/scsi_host/host0/scan
pvcreate /dev/sdb
vgdisplay
vgextend VolGroup00 /dev/sdb
lvextend -l +100%FREE /dev/mapper/VolGroup00-LogVol00
resize2fs /dev/mapper/VolGroup00-LogVol00
Posted: August 25th, 2011
Categories: linux
Tags:
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LVM Removing PV device

[root@rhel ~]# pvdisplay
  /dev/sdb: read failed after 0 of 4096 at 0: Input/output error
 
echo 1 > /sys/class/scsi_device/0:0:1:0/device/delete
Posted: August 13th, 2011
Categories: linux, rhel
Tags: ,
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LVM Missing UUID

Boot to rescue mode then…

lvm pvdisplay
lvm pvcreate --restorefile /etc/lvm/backup/VolGroup00 VolGroup00 --uuid <missing-uuid> <device-/dev/sdas>
lvm vgcfgrestore --file /etc/lvm/backup/VolGroup00 VolGroup00
Posted: August 13th, 2011
Categories: linux, os, rhel
Tags: ,
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HP RAID Controller Diagnostics using hpacucli on Red Hat Enterprise Linux

rpm -ivh hpacucli-8.60-8.0.noarch.rpm

3 examples below…
ctrl all show
ctrl all show config
ctrl all show config detail

[root@hp ~]# hpacucli ctrl all show
 
Smart Array P410 in Slot 2                (sn: SOME SERIAL)
Smart Array P410i in Slot 0 (Embedded)    (sn: SOME SERIAL)
[root@hp ~]# hpacucli ctrl all show config
 
Smart Array P410 in Slot 2                (sn: SOME SERIAL)
 
   array A (SAS, Unused Space: 0 MB)
 
 
      logicaldrive 1 (820.2 GB, RAID 50, OK)
 
      physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 146 GB, OK)
      physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 146 GB, OK)
      physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 146 GB, OK)
      physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 146 GB, OK)
      physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SAS, 146 GB, OK)
      physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SAS, 146 GB, OK)
      physicaldrive 2I:1:7 (port 2I:box 1:bay 7, SAS, 146 GB, OK)
      physicaldrive 2I:1:8 (port 2I:box 1:bay 8, SAS, 146 GB, OK)
 
   SEP (Vendor ID PMCSIERA, Model  SRC 8x6G) 250 (WWID: SOME SERIAL)
 
 
Smart Array P410i in Slot 0 (Embedded)    (sn: SOME SERIAL)
 
   array A (SAS, Unused Space: 0 MB)
 
 
      logicaldrive 1 (546.8 GB, RAID 1+0, OK)
 
      physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 146 GB, OK)
      physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 146 GB, OK)
      physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 146 GB, OK)
      physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 146 GB, OK)
      physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SAS, 146 GB, OK)
      physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SAS, 146 GB, OK)
      physicaldrive 2I:1:7 (port 2I:box 1:bay 7, SAS, 146 GB, OK)
      physicaldrive 2I:1:8 (port 2I:box 1:bay 8, SAS, 146 GB, OK)
[root@hp ~]# hpacucli ctrl all show config detail
 
Smart Array P410 in Slot 2
   Bus Interface: PCI
   Slot: 2
   Serial Number: SOME SERIAL
   Cache Serial Number: PBCDF0CRHZ300W
   RAID 6 (ADG) Status: Disabled
   Controller Status: OK
   Chassis Slot:
   Hardware Revision: Rev C
   Firmware Version: 3.00
   Rebuild Priority: Medium
   Expand Priority: Medium
   Surface Scan Delay: 15 secs
   Surface Scan Mode: Idle
   Queue Depth: Automatic
   Monitor and Performance Delay: 60 min
   Elevator Sort: Enabled
   Degraded Performance Optimization: Disabled
   Inconsistency Repair Policy: Disabled
   Wait for Cache Room: Disabled
   Surface Analysis Inconsistency Notification: Disabled
   Post Prompt Timeout: 0 secs
   Cache Board Present: True
   Cache Status: OK
   Accelerator Ratio: 25% Read / 75% Write
   Drive Write Cache: Disabled
   Total Cache Size: 1024 MB
   No-Battery Write Cache: Disabled
   Cache Backup Power Source: Capacitors
   Battery/Capacitor Count: 1
   Battery/Capacitor Status: OK
   SATA NCQ Supported: True
 
   Array: A
      Interface Type: SAS
      Unused Space: 0 MB
      Status: OK
 
 
 
      Logical Drive: 1
         Size: 820.2 GB
         Fault Tolerance: RAID 50
         Number of Parity Groups: 2
         Heads: 255
         Sectors Per Track: 32
         Cylinders: 65535
         Strip Size: 64 KB
         Status: OK
         Array Accelerator: Enabled
         Parity Initialization Status: Initialization Completed
         Unique Identifier: 600508B100103956595631505A380300
         Disk Name: /dev/cciss/c1d0
         Mount Points: None
         Logical Drive Label: A0209451SOME SERIAL7F50
         Parity Group 0:
            physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 146 GB, OK)
            physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 146 GB, OK)
            physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SAS, 146 GB, OK)
            physicaldrive 2I:1:7 (port 2I:box 1:bay 7, SAS, 146 GB, OK)
         Parity Group 1:
            physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 146 GB, OK)
            physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 146 GB, OK)
            physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SAS, 146 GB, OK)
            physicaldrive 2I:1:8 (port 2I:box 1:bay 8, SAS, 146 GB, OK)
 
      physicaldrive 1I:1:1
         Port: 1I
         Box: 1
         Bay: 1
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1RN0300009051BF0U
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 1I:1:2
         Port: 1I
         Box: 1
         Bay: 2
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1SWW500009051BDJQ
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 1I:1:3
         Port: 1I
         Box: 1
         Bay: 3
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1STSP00009051YRRF
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 1I:1:4
         Port: 1I
         Box: 1
         Bay: 4
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1S7H800009051H7ZU
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:5
         Port: 2I
         Box: 1
         Bay: 5
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB182KT00009051H7YY
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:6
         Port: 2I
         Box: 1
         Bay: 6
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB182AF00009051H20G
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:7
         Port: 2I
         Box: 1
         Bay: 7
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1SV2D00009051BGS0
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:8
         Port: 2I
         Box: 1
         Bay: 8
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB181MN00009051Z0TS
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
 
   SEP (Vendor ID PMCSIERA, Model  SRC 8x6G) 250
      Device Number: 250
      Firmware Version: RevC
      WWID: SOME SERIAL
      Vendor ID: PMCSIERA
      Model:  SRC 8x6G
 
 
Smart Array P410i in Slot 0 (Embedded)
   Bus Interface: PCI
   Slot: 0
   Serial Number: SOME SERIAL
   RAID 6 (ADG) Status: Disabled
   Controller Status: OK
   Chassis Slot:
   Hardware Revision: Rev C
   Firmware Version: 3.00
   Rebuild Priority: Medium
   Expand Priority: Medium
   Surface Scan Delay: 15 secs
   Surface Scan Mode: Idle
   Wait for Cache Room: Disabled
   Surface Analysis Inconsistency Notification: Disabled
   Post Prompt Timeout: 0 secs
   Cache Board Present: False
   Drive Write Cache: Disabled
   SATA NCQ Supported: True
 
   Array: A
      Interface Type: SAS
      Unused Space: 0 MB
      Status: OK
 
 
 
      Logical Drive: 1
         Size: 546.8 GB
         Fault Tolerance: RAID 1+0
         Heads: 255
         Sectors Per Track: 32
         Cylinders: 65535
         Strip Size: 128 KB
         Status: OK
         Unique Identifier: 600508B1001030394241393441301000
         Disk Name: /dev/cciss/c0d0
         Mount Points: /boot 101 MB
         OS Status: LOCKED
         Logical Drive Label: A000A241SOME SERIAL0ABC
         Mirror Group 0:
            physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 146 GB, OK)
            physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 146 GB, OK)
            physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 146 GB, OK)
            physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 146 GB, OK)
         Mirror Group 1:
            physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SAS, 146 GB, OK)
            physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SAS, 146 GB, OK)
            physicaldrive 2I:1:7 (port 2I:box 1:bay 7, SAS, 146 GB, OK)
            physicaldrive 2I:1:8 (port 2I:box 1:bay 8, SAS, 146 GB, OK)
 
      physicaldrive 1I:1:1
         Port: 1I
         Box: 1
         Bay: 1
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1SVAA00009051H17G
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 1I:1:2
         Port: 1I
         Box: 1
         Bay: 2
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1SV9Y00009051K2C3
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 1I:1:3
         Port: 1I
         Box: 1
         Bay: 3
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1RP4R00009051AHF9
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 1I:1:4
         Port: 1I
         Box: 1
         Bay: 4
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1S8Y3000090462D2G
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:5
         Port: 2I
         Box: 1
         Bay: 5
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1SXSC00009051JQNT
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:6
         Port: 2I
         Box: 1
         Bay: 6
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1SYHC00009049MP37
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:7
         Port: 2I
         Box: 1
         Bay: 7
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1T7HD000090335RAR
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
 
      physicaldrive 2I:1:8
         Port: 2I
         Box: 1
         Bay: 8
         Status: OK
         Drive Type: Data Drive
         Interface Type: SAS
         Size: 146 GB
         Rotational Speed: 15000
         Firmware Revision: HPDE
         Serial Number: 3TB1SVN600009041KXNP
         Model: HP      EH0146FAWJB
         PHY Count: 2
         PHY Transfer Rate: 6.0GBPS, Unknown
Posted: March 28th, 2011
Categories: hp, os, rhel, servers
Tags: , , ,
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Installing & Configuring DHCP on Red Hat Enterprise Linux

yum install dhcp -y
 
cp /etc/dhcpd.conf /etc/dhcpd.conf.orig
 
cat > /etc/dhcpd.conf << EOF
ddns-update-style interim;
ignore client-updates;
allow booting;
allow bootp;
option option-128 code 128 = string;
option option-129 code 129 = text;
next-server TFTP.IP; 
filename "/pxelinux.0";
 
subnet IP.SUBNET netmask 255.255.255.0 {
       option routers                  GW.IP; #Default Gateway
       option subnet-mask              255.255.255.0;
       option domain-name              "test.local";
       option domain-name-servers      DNS1;
       #option netbios-name-servers     WINS1;
       range dynamic-bootp DHCP1 DHCP2;  #DHCP Range to assign
       default-lease-time 43200;
       max-lease-time 86400;
}
 
EOF
 
cp /etc/sysconfig/dhcpd /etc/sysconfig/dhcpd.orig
cat > /etc/sysconfig/dhcpd << EOF
DHCPDARGS=eth0
EOF
 
service dhcpd restart
chkconfig dhcpd on
Posted: March 28th, 2011
Categories: rhel
Tags: , ,
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Centrify Installation & Configuration on Red Hat Enterprise Linux

#!/bin/bash
 
CENTRIFY_SW_TARBALL="centrify-suite-2011-rhel3-x86_64.tgz"
CENTRIFY_AD_SERVER="AD-SERVER.SUB.DOMAIN.COM"
CENTRIFY_AD_DOMAIN="AD-DOMAIN.local"
CENTRIFY_AD_JOINER_USER="JOINER-ACCOUNT"
CENTRIFY_AD_JOINER_PASS="JOINER-PASSWORD"
CLIENT_JOIN_NAME="`hostname`"
 
id | grep uid=0 > /dev/null
if [ "$?" != "0" ]; then
    echo ERROR: Only the superuser can run this script.
    echo Exiting ...
    exit 1
fi
 
if [ -d /root ]; then
    cd /root
    mkdir centrify
    cd centrify
    wget http://WEBSERVER/centrify/${CENTRIFY_SW_TARBALL}
    tar xvfz ${CENTRIFY_SW_TARBALL}
fi
 
if [ -f /root/centrify/install-express.sh ]; then
    printf "kicking off non-interactive install\n"
    cd /root/centrify
    ./install-express.sh -n --express
fi
 
if [ -f /usr/sbin/adjoin ]; then
    # for standard edition+ only. does not work with express
    # /usr/sbin/adjoin --selfserve --name ${CLIENT_JOIN_NAME} --server ${CENTRIFY_AD_SERVER} --force ${CENTRIFY_AD_DOMAIN}
    # express method
    /usr/sbin/adjoin -w -u ${CENTRIFY_AD_JOINER_USER} -p ${CENTRIFY_AD_JOINER_PASS} ${CENTRIFY_AD_DOMAIN}
 
    if [ "$?" = "0" ]; then
        /usr/bin/adinfo
    fi
fi
Posted: March 25th, 2011
Categories: ad, centos, centrify, directory services, linux, rhel
Tags: , , , ,
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Linux iSCSI Installation & Configuration

yum install iscsi-initiator-utils -y
 
service iscsi start
chkconfig iscsi on
iscsiadm -m discovery -t sendtargets -p ISCSI.HOST.IP.ADDRESS
service iscsi restart
fdisk -l
 
fdisk /dev/sdb1
mkfs.ext3 /dev/sdb1
Posted: March 25th, 2011
Categories: netapp, os, rhel, storage
Tags: , ,
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Linux PPTP VPN Client Installation & Configuration

yum install pptp pptp-setup -y
pptpsetup --create PPTP_VPN --server PUB.IP.ADDR.HERE --username VPN_USER --encrypt
pppd call PPTP_VPN
Posted: March 25th, 2011
Categories: centos, networking, rhel, vpn
Tags: , ,
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Backup & Restore the Volume in Linux Single User Mode

service network start
ifconfig eth0 ip netmask
service portmap start
mkdir /tmp/remote
mount -t nfs -o tcp,port=2049 nas:/volume1/share /tmp/remote
rpm -ivh /tmp/remote/rmt*
rpm -ivh /tmp/remote/dump*
dump 0f /tmp/remote/host.dump /dev/VolGroup00/LogVol00
 
mkdir /tmp/local
mount /dev/VolGroup00/LogVol00 /tmp/local
cd /tmp/local
restore rvf /tmp/remote/host.dump &amp;&gt; /tmp/remote/host.log &amp;
Posted: December 31st, 2009
Categories: os, rhel
Tags: ,
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Building Linux Kernel

cd /usr/src/linux-
make menuconfig
make
make modules
make modules_install
make install 
 
vi /boot/grub/menu.lst
change initrd to use the image
reboot
Posted: December 3rd, 2009
Categories: os, rhel
Tags: ,
Comments: No Comments.