System Adm » HP-UX

Increase lvol size in HP-UX

Lincoln Zuljewic Silva — Fri, 07 May 2010 21:11:21 +0000

Let’s assume that you want to increase 1Gb of the /dev/MyVG /lvol1 device (mounted as /filesystem):
# bdf /filesystem Filesystem kbytes used avail %used Mounted on /dev/ MyVG /lvol1 573440000 533892407 37080557 94% /filesystem
The actual size is 573440000 Kb (573 Gb) and you will increase it to 574440000 Kb (574 Gb).

- Check if there is available space in the Volume Group:
# vgdisplay MyVG --- Volume groups --- VG Name /dev/MyVG VG Write Access read/write VG Status available Max LV 255 Cur LV 1 Open LV 1 Max PV 100 Cur PV 17 Act PV 17 Max PE per PV 15000 VGDA 34 PE Size (Mbytes) 16 Total PE 36907 Alloc PE 35000 Free PE 1907 Total PVG 1 Total Spare PVs 0 Total Spare PVs in use 0

Note the “Free PE” and “PE Size (Mbytes)”. It say that you has 30512 Mb (30Gb) available in MyVG (Free PE * PE Size).

- Increase the lvol:
# lvextend -L 574440 /dev/MyVG/lvol1 * the syntax is: lvexten -L

- Now, increase the filesystem:
# fsadm -b 574440m /filesystem * the syntax is: fsadm –b

Changing the HP-UX hostname

Lincoln Zuljewic Silva — Fri, 07 May 2010 18:08:34 +0000

To change the hostname in HP-UX:

- Edit the file "/etc/rc.config.d/netconf"
# /etc/rc.config.d/netconf
- Look for the line that starts with HOSTNAME and change the hostname, example:
HOSTNAME="mylittleserver"
- Now, apply the change:
# /sbin/init.d/hostname start

Rename a Super Dome Partition

Lincoln Zuljewic Silva — Fri, 23 Apr 2010 14:31:40 +0000

To rename a Super Dome Partition (for example change the name that is showed in the MP console menu), do the following:

Glance shortcuts

Lincoln Zuljewic Silva — Thu, 04 Feb 2010 13:00:24 +0000

To use the buttons at the bottom of the glance, you should do an "export TERM=dtterm".

After that, you will be able to use:
F1 for ProcList F2 for CPU Rpt F3 for Mem Rpt F4 for Disk Rpt F5 for NextKeys F6 for SlctProc F7 for Help F8 for Exit

Control agent problem (OVO)

Lincoln Zuljewic Silva — Fri, 08 Jan 2010 22:32:24 +0000

Sometimes the OVO agent stops communicating with the OVO Server.
Control agent on nodeHOST isn't accessible. (OpC40-405) Network communication problem: Could not obtain endpoint information from node ncadg_ip_udp:10.0.0.10[]. (OpC40-399)
To reestablish the communication, you should restart it:

To stop, use the command:
# /opt/OV/bin/OpC/opcagt -stop

Check if it is stopped:
# /opt/OV/bin/OpC/opcagt -status ITO Managed Node status : ------------------------- Control Agent /opt/OV/bin/OpC/opcctla (3818) is running Message Agent /opt/OV/bin/OpC/opcmsga (3819) is running Subagent 1: Action Agent /opt/OV/bin/OpC/opcacta (3820) is running Logfile Encapsulator /opt/OV/bin/OpC/opcle (3821) is running Monitor Agent /opt/OV/bin/OpC/opcmona (3822) is running Message Interceptor /opt/OV/bin/OpC/opcmsgi (3823) is running

Attention: the "Control Agent" may not stop, you can kill it with a "kill -9 PID"

To start, use the command:
# /opt/OV/bin/OpC/opcagt -start

Check powerpath links in HP-UX

Lincoln Zuljewic Silva — Tue, 22 Dec 2009 20:22:43 +0000

To check if the powerpath links are up in HP-UX, you can use the following command:

# powermt display dev=all

When Glance stop working

Lincoln Zuljewic Silva — Sun, 06 Dec 2009 20:41:39 +0000

Sometimes glance (performance monitor for HP-UX) can crash (before crash, it will return 0% of CPU, Disk and networking) working with the following error:
GlancePlus fatal error. == Fatal Nums Error == C.04.50.57 02/10/07 == User: root/6pts/6(/dev/pts/6) Date: Sun Dec 6 15:52:12 File: /crm/numsVob/hp/11.0/nums.C Line: 485 Product id: Glance System: server B.11.11 9000/800 Errno: 0 (Error 0) Connection to midaemon lost -- check midaemon process and status.mi == End of Error Msg =============================

To solve it, you should:

Stop MWA:
# mwa stop

Remove all files (including the hidden ones) from /var/opt/perf/datafiles:
# rm -rf /var/opt/perf/datafiles/* rm -rf /var/opt/perf/datafiles/.*

Check if midaemon and ttd are stopped:
# mwa status

If midaemon and ttd didn’t stop, force stops them with the command kill (the PID was returned by the command ‘mwa status’).

Now, start MWA again:
# mwa start

Lock an user account in HP-UX

Lincoln Zuljewic Silva — Thu, 24 Sep 2009 17:45:17 +0000

To lock an user account in HP-UX, you can use the following command:

# /usr/lbin/modprpw -m alock=YES USER

Merge many depots

Lincoln Zuljewic Silva — Tue, 25 Aug 2009 17:58:23 +0000

When you have many depot files, you can create a single big depot and install it instead of install one by one. Let’s assume that you need install the following depots, and they are all located in the directory /tmp/install/depots:

autoconf-2.64-hppa-11.11.depot bison-2.4.1-hppa-11.11.depot gawk-3.1.7-hppa-11.11.depot sed-4.2.1-hppa-11.11.depot tcltk-8.5.7-hppa-11.11.depot texinfo-4.13-hppa-11.11.depot zip-3.0-hppa-11.11.depot

To create a single depot, run the follow commands:
# cd /tmp/install/ for i in `ls depots/*.depot` ;do swcopy -s /tmp/install/$i \* @/tmp/install/big;done

Now, to install it, you can use:
# swinstall -s /tmp/install/big

HP-UX password maintenance

Lincoln Zuljewic Silva — Mon, 01 Jun 2009 13:15:43 +0000

Follow a few utilities to maintain the user’s passwords:

/usr/lbin/getprpw - display protected password database information
/usr/lbin/modprpw -x – change password
/usr/lbin/modprpw -k – unlock the user

Hardware specification in HP-UX

Lincoln Zuljewic Silva — Tue, 26 May 2009 13:48:00 +0000

You can use the following command to check the HP-UP hardware (like CPU and memory):

# hpuxhost@root:/root # print_manifest |more System Information


	Your Hewlett-Packard computer has software installed and

	configured as follows.
	The system was created July 04, 2007, 11:53:28 EDT.
	It was created with Ignite-UX revision C.6.10.97.
	-------------------------------------------------------------

	NOTE: You should retain this information for future reference.

	-------------------------------------------------------------

System Hardware Model: 9000/800/SD32A Main Memory: 65005 MB Processors: 32 Proccesor(0) Speed: 1000 MHz Proccesor(1) Speed: 1000 MHz Proccesor(2) Speed: 1000 MHz Proccesor(3) Speed: 1000 MHz Proccesor(4) Speed: 1000 MHz Proccesor(5) Speed: 1000 MHz Proccesor(6) Speed: 1000 MHz Proccesor(7) Speed: 1000 MHz Proccesor(8) Speed: 1000 MHz Proccesor(9) Speed: 1000 MHz Proccesor(10) Speed: 1000 MHz Proccesor(11) Speed: 1000 MHz Proccesor(12) Speed: 1000 MHz Proccesor(13) Speed: 1000 MHz Proccesor(14) Speed: 1000 MHz Proccesor(15) Speed: 1000 MHz Proccesor(16) Speed: 1000 MHz Proccesor(17) Speed: 1000 MHz Proccesor(18) Speed: 1000 MHz Proccesor(19) Speed: 1000 MHz Proccesor(20) Speed: 1000 MHz Proccesor(21) Speed: 1000 MHz Proccesor(22) Speed: 1000 MHz Proccesor(23) Speed: 1000 MHz Proccesor(24) Speed: 1000 MHz Proccesor(25) Speed: 1000 MHz Proccesor(26) Speed: 1000 MHz Proccesor(27) Speed: 1000 MHz Proccesor(28) Speed: 1000 MHz Proccesor(29) Speed: 1000 MHz Proccesor(30) Speed: 1000 MHz Proccesor(31) Speed: 1000 MHz (...) Many other HW information above

Recovering corrupted lvol on HP-UX

Lincoln Zuljewic Silva — Thu, 14 May 2009 19:32:34 +0000

Sometimes you can get the following error while try to access a directory in HP-UX:

# cd /DATA sh: /DATA: The specified directory is not valid.

This error is caused because the file system is corrupted and you need run fsck on it.

First of all, umount the FS:

# umount /DATA

And them, run the fsck:

# fsck -y -o full /dev/vgLOG/lvol1on clear? (ynq)y UX:vxfs fsck: WARNING: V-3-20836: file system had I/O error(s) on meta-data. log replay in progress pass0 - checking structural files pass1 - checking inode sanity and blocks fileset 999 primary-ilist inode 177502 marked bad, allocation flags (0x0001) fileset 999 primary-ilist inode 177502 has invalid number of blocks (7309) fileset 999 primary-ilist inode 177502 has invalid block map fileset 999 primary-ilist inode 177502 failed validation clear? (ynq)y fileset 999 primary-ilist inode 177859 marked bad, allocation flags (0x0001) fileset 999 primary-ilist inode 177859 has invalid number of blocks (24850) fileset 999 primary-ilist inode 177859 has invalid block map fileset 999 primary-ilist inode 177859 failed validation clear? (ynq)y fileset 999 primary-ilist inode 178243 marked bad, allocation flags (0x0001) fileset 999 primary-ilist inode 178243 has invalid number of blocks (6417) fileset 999 primary-ilist inode 178243 has invalid block map fileset 999 primary-ilist inode 178243 failed validation clear? (ynq)y fileset 999 primary-ilist inode 178793 marked bad, allocation flags (0x0001) fileset 999 primary-ilist inode 178793 failed validation clear? (ynq)y pass2 - checking directory linkage pass3 - checking reference counts pass4 - checking resource maps fileset 999 au 2 imap incorrect - fix (ynq)y fileset 999 au 2 iemap incorrect - fix (ynq)y au 42 emap incorrect - fix? (ynq)y au 42 summary incorrect - fix? (ynq)y au 59 emap incorrect - fix? (ynq)y au 59 summary incorrect - fix? (ynq)y au 60 emap incorrect - fix? (ynq)y au 60 summary incorrect - fix? (ynq)y au 61 emap incorrect - fix? (ynq)y au 61 summary incorrect - fix? (ynq)y au 62 emap incorrect - fix? (ynq)y au 62 summary incorrect - fix? (ynq)y au 63 emap incorrect - fix? (ynq)y au 63 summary incorrect - fix? (ynq)y fileset 999 iau 2 summary incorrect - fix? (ynq)y free block count incorrect 2153192 expected 2202289 fix? (ynq)y free extent vector incorrect fix? (ynq)y OK to clear log? (ynq)y set state to CLEAN? (ynq)y

After that, you can mount the FS again.

# umount /DATA

Listing installed packages in HP-UX

Lincoln Zuljewic Silva — Wed, 13 May 2009 12:23:13 +0000

To list all installed packages on HP-UX, you can use the following command:

# swlist -l

How to change user’s password in HP-UX

Lincoln Zuljewic Silva — Thu, 30 Apr 2009 18:14:02 +0000

To change the user passwd in HP-UX, you can use the following command:

# /usr/lbin/modprpw -x foobar passwd=dyxmuola

It will force the user foobar to change its password in the first login.

SSH Memory fault(coredump) in HP-UX

Lincoln Zuljewic Silva — Thu, 16 Apr 2009 19:21:37 +0000

If you try to access from a HP-UX another machine that has a newer version of SSH running, you may get a “SSH Memory fault(coredump)” message like the following one:

# ssh -v server Debian OpenSSH_3.5p1, SSH protocols 1.5/2.0, OpenSSL 0×0090609f 16153: debug1: Reading configuration data /opt/ssh/etc/ssh_config16153: debug1: Rhosts Authentication disabled, originating port will not be trusted.16153: debug1: ssh_connect: needpriv 0 16153: debug1: Connecting to serverDebian [10.0.0.1] port 22.16153: debug1: Connection established.16153: debug1: identity file /.ssh/id_rsa type -116153: debug1: identity file /.ssh/id_dsa type -116153: debug1: Remote protocol version 1.99, remote software version OpenSSH_4.2-chrootssh16153: debug1: match: OpenSSH_4.2-chrootssh pat OpenSSH* 16153: debug1: Enabling compatibility mode for protocol 2.0 16153: debug1: Local version string SSH-2.0-OpenSSH_3.5p1 Memory fault(coredump)

To solve it, you should create a empty file named /etc/krb5.conf in HP-UX. After that, you will be able to use SSH