topic Re: online lun resize 11.31 in Operating System - HP-UX

online lun resize 11.31

centurion — Mon, 23 Nov 2009 13:24:17 GMT

I resize my lun at the storage-box (hp eva), no problem. But my lun in the lvm has the old size.

When I make the same procedure with a lun, which is not under lvm-control, then it works?!

Any ideas?

11.31
LVM 1.0

Re: online lun resize 11.31

Torsten. — Mon, 23 Nov 2009 13:26:48 GMT

You need to use vgmodify to adjust the LVM layout.

Re: online lun resize 11.31

centurion — Mon, 23 Nov 2009 13:29:38 GMT

the problem is, when I use diskinfo - the lun has the old size. I think vgmodify is the next step.

Re: online lun resize 11.31

Torsten. — Mon, 23 Nov 2009 13:35:21 GMT

I would do an ioscan and then the vgmodify.

Example:

# vgmodify vg01

Current Volume Group settings:
Max LV 255
Max PV 16
Max PE per PV 2559
PE Size (Mbytes) 4
VGRA Size (Kbytes) 400
"/dev/rdsk/c3t0d1" size changed from 10485600 to 20971520kb
An update to the Volume Group IS required
...

Re: online lun resize 11.31

centurion — Mon, 23 Nov 2009 13:42:38 GMT

I already use the ioscan - old size.

when I make the same procedure with a test lun, which is not under lvm control, then I can see the new size automatically with diskinfo. the ioscan is not necessary.

Re: online lun resize 11.31

Torsten. — Mon, 23 Nov 2009 13:47:02 GMT

Does vgmodify detect the new size or not?

Re: online lun resize 11.31

centurion — Mon, 23 Nov 2009 13:56:01 GMT

root@system01[/root]# vgmodify vgtest
vgmodify: The volume group "vgtest" is active on this system. Use the -a option to perform the requested change.

root@system01[/root]# vgmodify -a vgtest
vgmodify: Error: -a option should be used with either -e, -p, -l, -o, -B, -C,
-R or -E options.

Which options are necessary?

Re: online lun resize 11.31

centurion — Mon, 23 Nov 2009 14:02:03 GMT

root@system01[/root]# vgmodify -E -a vgtest
"/dev/rdisk/disk66" size changed from 31457280 to 41943040kb
Volume Group configuration for /dev/vgtest has been saved in /etc/lvmconf/vgtest.conf

Very nice, one volume has the new size. But the second volume the old?!

Re: online lun resize 11.31

Torsten. — Mon, 23 Nov 2009 14:03:26 GMT

From manual:

The vgmodify command supports LUN expansion on a Version 1.0 volume group without
deactivating the volume group. To reconfigure an activated volume group to take advantage of
a physical volume size increase, use the â E and â a options to vgmodify. For example, if the
physical volume /dev/disk/disk32 in volume group vg02 has been expanded, use the
following command to add physical extents to it:
# vgmodify -a -E /dev/vg02 /dev/rdisk/disk32

For more information, see vgmodify(1M).

Re: online lun resize 11.31

centurion — Mon, 23 Nov 2009 14:07:29 GMT

root@system01[/root]# vgmodify -E -a vgtest /dev/rdisk/disk61
An update to the Volume Group is NOT required
Volume Group configuration for /dev/vgtest has been saved in /etc/lvmconf/vgtest.conf

Re: online lun resize 11.31

Torsten. — Mon, 23 Nov 2009 14:10:35 GMT

First I would double check with commandview and evainfo if the LUN increase operation was performed successfully.

Re: online lun resize 11.31

centurion — Mon, 23 Nov 2009 14:16:25 GMT

command view shows the correct size.

Re: online lun resize 11.31

Torsten. — Mon, 23 Nov 2009 14:25:59 GMT

From manual instructions:

1. Review current volume group parameters.
# vgdisplay vg1
...
2. Use online vgmodify in review mode to review the effect of the change in disk size.
# vgmodify â r -a -E vg1
"/dev/rdisk/disk43" size changed from 52428800 to 71687369kb

An update to the Volume Group IS required
Review complete. Volume group not modified
3. Use online vgmodify to change the disk size.
# vgmodify -a -E vg1
"/dev/rdisk/disk43" size changed from 52428800 to 71687369kb

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01920387/c01920387.pdf (BSC link updated by admin)

Re: online lun resize 11.31

Steven E. Protter — Mon, 23 Nov 2009 14:31:19 GMT

Shalom,

What you are seeing is why its actually easier to present a new LUN to the system than to increase the size of an existing one.

It is very difficult and sometimes impossible to get an HP-UX system to recognize a LUN has increased.

Here we generally do not issue large LUNS, we issue a 300 GB LUN as 10 30 GB LUNS, and use LVM to put them together in a volume group. Then when we need another 30 GB, we just present a new LUN to the system and use vgextend etc to handle it.

This is a method that involves less headaches.

If your system won't recognize the space after the above procedures, and/or a reboot, you should consider an alternate way of doing this to avoid the amount of fun you are currently experiencing.

SEP

Re: online lun resize 11.31

Torsten. — Mon, 23 Nov 2009 14:37:03 GMT

Please post an

# vgdisplay -v vgtest

# swlist

Re: online lun resize 11.31

centurion — Tue, 24 Nov 2009 05:57:05 GMT

root@system01[/root]# vgdisplay -v vgtest
--- Volume groups ---
VG Name /dev/vgtest
VG Write Access read/write
VG Status available
Max LV 128
Cur LV 1
Open LV 1
Max PV 128
Cur PV 2
Act PV 2
Max PE per PV 12000
VGDA 4
PE Size (Mbytes) 128
Total PE 1118
Alloc PE 799
Free PE 319
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
VG Version 1.0
VG Max Size 192000g
VG Max Extents 1536000

--- Logical volumes ---
LV Name /dev/vgtest/lvol1
LV Status available/syncd
LV Size (Mbytes) 102272
Current LE 799
Allocated PE 799
Used PV 1

--- Physical volumes ---
PV Name /dev/disk/disk61
PV Status available
Total PE 799
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/disk/disk66
PV Status available
Total PE 319
Free PE 319
Autoswitch On
Proactive Polling On

swlist:

10GigEthr-02 B.11.31.0903 PCIe 10 Gigabit Ethernet;Supptd HW=567799-B21
B2491BA B.11.31 MirrorDisk/UX (Server)
B3701AA C.04.73.000 HP GlancePlus/UX Pak for 11.31
B3835DA C.03.05 HP Process Resource Manager
B3929EA B.11.31 HP OnLineJFS (Server)
B5140BA A.11.31.04 Serviceguard NFS Toolkit
B5736DA A.04.20.31.03 HA Monitors
B6848BA 1.4.gm.46.16 Ximian GNOME 1.4 GTK+ Libraries for HP-UX
B8843CA A.03.04 HP-UX Workload Manager
BUNDLE B.2009.06.22 Patch Bundle
Base-VXFS B.11.31 Base VxFS File System 4.1 Bundle for HP-UX
BaseLVM B.11.31.0903 Logical Volume Manager
CDE-English B.11.31 English CDE Environment
CIFS-CLIENT A.02.02.02 HP CIFS Client
CIFS-SERVER A.02.03.04 HP CIFS Server
CommonIO B.11.31.0903 Common IO Drivers
DSAUtilities C.01.00.18 HP-UX Distributed Systems Administration Utilities
DynRootDisk B.1131.A.3.3.221 Dynamic Root Disk
DynamicNPars B.11.31.0709 Dynamic nPartitions enablement
FEATURE11i B.11.31.0903.334c Feature Enablement Patches for HP-UX 11i v3, March 2009
FIREFOX A.2.0.0.16ar.00 Firefox for HP-UX
FIREFOXsrc A.2.0.0.16ar.00 Firefox Source distribution
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FibrChanl-01 B.11.31.0903 FibrChnl;HW=A6826A,A9782A,A9784A,AB378A/B,AB379A/B,AB465A,AD193A,AD194A,AD300A
FibrChanl-02 B.11.31.0903 FCLP;HW=AD299A,AD355A,AD221A,AD222A,AD393A,AH402A,AH403A,403621-B21,456972-B21
GTK 2.6.8.00.01 GTK+ 2.6 The Gnome GUI Runtime Toolkit
GTKsrc 2.6.8.00.01 Gtk Source distribution
GigEther-00 B.11.31.0903 PCI GigEther;Supptd HW=A4926A/A4929A/A6096A;SW=J1642AA
GigEther-01 B.11.31.0903 PCI GigEther;Supptd HW=A6825A/A6794A/A6847A/A8685A/A9782A/A9784A/A7109A/AB465A
GuestAVIOStor B.11.31.0903.01 HPVM Guest AVIO Storage Software
GuestAvioLan B.11.31.0903 HPVM Guest AVIO LAN Software
HP-ACC-Link C.11.31.03 HP aCC_link Bundle
HP-Caliper-PERF C.11.31.04 HP Caliper OE Bundle
HP-WDB-DEBUGGER C.11.31.04 HP DEBUGGER OE Bundle
HPUX-DHCPv4 B.11.31 HPUX DHCPv4 Server
HPUX-DHCPv6 B.11.31 HPUX DHCPv6 Server
HPUX-FTPServer C.2.6.1.4.0 HPUX FTP Server
HPUX-MailServer C.8.13.3.3 HPUX Mail Server
HPUX-NTP B.11.31 HPUX NTP Server
HPUX-NameServer C.9.3.2.5.0 HPUX Name Server
HPUX-RAMD B.11.31 HPUX IPv6 routing Server
HPUX-TCPWRAP B.11.31 HPUX TCPWrapper daemon
HPUX11i-DC-OE B.11.31.0903 HP-UX Data Center Operating Environment
HPUXBastille B.3.1.01 Bastille Security Hardening Tool
HPUXEssential B.11.31 Essential HP-UX Utilities
HPUXExtns-Jpn B.11.31 Japanese font, input methods and printer extensions
HPUXExtns-Kor B.11.31 Korean font, input methods and printer extensions
HPUXExtns-SCh B.11.31 Simplified Chinese font, input methods and printer extensions
HPUXExtns-TCh B.11.31 Traditional Chinese font, input methods and printer extensions
HPUXGatedMrouted B.11.31 HPUX Gated and Mrouted Server
HPUXLocales B.11.31 Internationalization Support
HPUXMan-Eng B.11.31 Minimum and Essential English man pages
HPUXMan-Jpn B.11.31 Minimum and Essential Japanese man pages
HPUXMinRuntime B.11.31 Minimum Runtime Environment
HPUXMsgs-Fre B.11.31 Minimum and Essential HP-UX French Language Message Catalogs
HPUXMsgs-Ger B.11.31 Minimum and Essential HP-UX German Language Message Catalogs
HPUXMsgs-Ita B.11.31 Minimum and Essential HP-UX Italian Language Message Catalogs
HPUXMsgs-Jpn B.11.31 Minimum and Essential HP-UX Japanese Language Message Catalogs
HPUXMsgs-Kor B.11.31 Minimum and Essential HP-UX Korean Language Message Catalogs
HPUXMsgs-SCh B.11.31 Minimum and Essential HP-UX Simplified Chinese Language Message Catalogs
HPUXMsgs-Spa B.11.31 Minimum and Essential HP-UX Spanish Language Message Catalogs
HPUXMsgs-Swe B.11.31 Minimum and Essential HP-UX Swedish Language Message Catalogs
HPUXMsgs-TCh B.11.31 Minimum and Essential HP-UX Traditional Chinese Language Message Catalogs
HWEnable11i B.11.31.0903.334d Hardware Enablement Patches for HP-UX 11i v3, March 2009
HostAVIOStor B.11.31.0903 HPVM Host AVIO Storage Software
HostAvioLan B.11.31.0903 HPVM Host AVIO LAN Software
IEther-00 B.11.31.0810 PCI/PCI-X/PCIe IEther
IGNITE C.7.8.201 HP-UX Installation Utilities (Ignite-UX)
IPFilter A.11.31.16 HP IPFilter 3.5alpha5
J4240AA B.11.31.30 Auto-Port Aggregation Software
Java15JDK 1.5.0.14.00 Java 1.5 JDK for HP-UX
Java15JRE 1.5.0.14.00 Java 1.5 JRE for HP-UX
Java60JDK 1.6.0.02.00 Java 6.0 JDK for HP-UX
Java60JRE 1.6.0.02.00 Java 6.0 JRE for HP-UX
LDAPUX B.04.20 LDAP-UX Integration
MOZILLA 1.7.13.01.01 Mozilla for HP-UX
MOZILLAsrc 1.7.13.01.01 Mozilla Source distribution
NParCmds B.11.31.0903 NPartition Commands
ONCplus B.11.31.06.01 ONC+ 2.3
OVsnmpAgent B.11.31 OpenView SNMP Agent
OnlineDiag B.11.31.05.06 HPUX 11.31 Support Tools Bundle, March 2009
PAMKerberos D.01.24 PAM-Kerberos Version 1.24
PRMKernelSW C.03.05 HP PRM Kernel Software
PRMLibraries C.03.05 HP PRM Software Libraries
ParMgr B.31.02.04.02 Partition Manager - HP-UX
ProviderDefault B.11.31.0903 Select WBEM Providers
ProviderSvcsBase C.01.00.03.01 Provider Services Base
QPKAPPS B.11.31.0903.334a Applications Patches for HP-UX 11i v3, March 2009
QPKBASE B.11.31.0903.334a Base Quality Pack Bundle for HP-UX 11i v3, March 2009
RAID-01 B.11.31.0903.01 RAID SA; Supptd HW=A7143A/A9890A/A9891A
Sec00Tools B.01.04.10 Install-Time security infrastructure.
SecureShell A.05.10.026 HP-UX Secure Shell
SerialSCSI-00 B.11.31.0903 PCI-X/PCI-E SerialSCSI
SwAssistant C.02.11 HP-UX Software Assistant
SysFaultMgmt C.05.00.06.01 HPUX System Fault Management
SysMgmtMin B.11.31.0903 Minimum Software Deployment Tools
SysMgmtPlus A.01.00.06.01 HP-UX SMH Plus
SysMgmtWeb A.3.0.0 HP-UX Web Based System Management User Interfaces
T1335DC A.05.05.01 HP-UX Virtual Partitions for 11.31
T1456AA 1.4.2.21.00 Java2 1.4 SDK for HP-UX
T1457AA 1.4.2.21.00 Java2 1.4 RTE for HP-UX
T1458AA 1.4.2.21.00 Java2 1.4 Netscape Plugin for HP-UX
T1905CA A.11.19.00 Serviceguard
T1909BA B.05.00 Enterprise Cluster Master Toolkit
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T2786AC A.03.00.02.01 HP VSE Suite for HP-UX 11i LTU
TBIRD A.2.0.0.16ar.01 Thunderbird for HP-UX
TBIRDsrc A.2.0.0.16ar.01 Thunderbird Source distribution
Tune-N-Tools B.11.31.02 Optimized Kernel Tunables and Tools for Database and Application Servers
USB-00 D.11.31.0903.01 Transition USB-00 Product
VMGuestLib B.04.10 Integrity VM Guest Support Libraries
VMGuestSW B.04.10 Integrity VM Guest Support Software
WLMToolkits A.01.10.01 HP-UX Workload Manager Toolkits
hpuxwsApache B.2.0.59.08 HPUX Apache Web Server
hpuxwsTomcat B.5.5.27.02 HPUX Tomcat
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perl E.5.8.8.C Perl Programming Language
scsiU320-00 B.11.31.0903 PCI-X SCSI U320;Supptd HW=A7173A/AB290A
#
# Product(s) not contained in a Bundle:
#

NM-SAP 3.0.2 EMC NetWorker Module for SAP with Oracle
NMSAP 3.0.1 Legato NetWorker Module for SAP R/3 with Oracle
NetWorker 7.4.2 NetWorker
PHCO_38547 1.0 ugm cumulative patch
PHSS_38141 1.0 aC++ Runtime (IA: A.06.20, PA: A.03.85)
PHSS_39102 1.0 Integrity Unwind Library
PHSS_39122 1.0 HP DCE 2.0 client cumulative patch
VRTSvlic 3.02.24.0 Symantec License Utilities
bash 4.0.010 bash
gettext 0.17 gettext
libiconv 1.13 libiconv
proftpd 1.2.10 proftpd
termcap 1.3.1 termcap

Re: online lun resize 11.31

centurion — Tue, 24 Nov 2009 06:09:00 GMT

@Steven E. Protter:

the problem is, that we use synchronous-mirror (hp svsp) and we can always make a mirror with one volume. so we have to resize the volume.

Re: online lun resize 11.31

Torsten. — Tue, 24 Nov 2009 06:12:43 GMT

Never worked with hp svsp so far, but maybe additional adjustments are needed?

Re: online lun resize 11.31

centurion — Tue, 24 Nov 2009 06:15:09 GMT

at the moment the sync. mirror is not active. this is a problem with the os/lvm.

with the vgmodify I can resize the size from one volume, but the other volume has the old size. :-(

Re: online lun resize 11.31

centurion — Tue, 24 Nov 2009 09:57:30 GMT

after I deactivate the vg, the diskinfo shows the new size from all physical volumes!
now I activate the vg and with vgmodify I can also see the correct size!

now I need a way to make this online..