Increase LUN size in AIX with VIOS and HACMP


 
Thread Tools Search this Thread
Operating Systems AIX Increase LUN size in AIX with VIOS and HACMP
# 8  
Old 03-12-2012
Wrong doc?

According to APAR IZ80021, there is an error on man pages of chvg -g. It says that since AIX 6.1 TL4 this is no longer a restriction.

I have all AIX and VIOS in TL6.

I presume this is a bug on VIOS side.

I've already opened a ticket on IBM support for a problem with a loss of a LUN access when a failover of DS controller occurs, but they don't have a solution yet.

Thanks!

Enzote
# 9  
Old 03-12-2012
man chvg on aix7.1

Code:
      -g
            Will examine all the disks in the volume group to see if they have grown in size. If any disks have grown in size attempt to add additional PPs to PV. If necessary will determine proper 1016 multiplier and conversion to big
            vg. Notes:
              1    The user might be required to execute varyoffvg and then varyonvg on the volume group for LVM to see the size change on the disks.
              2    There is no support for re-sizing while the volume group is activated in classic or enhanced concurrent mode.
              3    There is no support for re-sizing for the rootvg.

if this is a bug, then it has made it's way even to aix 7.1
but I would call it lazy man page update policy then a bug Smilie
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

Increase filesystem size AIX 5.3

I an trying to increase the file size on an AIX 5.3 box. I think i am missing the correct syntax for the command. Here is was i am trying on a test box # lsvg rootvg VOLUME GROUP: rootvg VG IDENTIFIER: 0000bd8b00004c00000 0010d8ed7a76e VG STATE: active ... (3 Replies)
Discussion started by: fierfek
3 Replies

2. AIX

Uniform LUN size

Hi, Is there any advantage is making all my storage LUNS ( hdisk ) of uniform size. Currently the LUN's are having different size () eg: 50G / 60G / 75G etc ). I am planning for a storage migration....so should i go for uniform lun size or with current LUN size pattern ? Regards, jibu (3 Replies)
Discussion started by: jibujacob
3 Replies

3. AIX

PowerHA HACMP on VIOS servers

Few questions regarding Power HA ( previously known as HACMP) and VIOS POWERVM IVM ( IBM Virtualization I/O Server ) Is it possible to create HACMP cluster between two VIOS servers Physical Machine_1 VIOS_SERVER_1 LPAR_1 SHARED_DISK_XX VIOS_SERVER_2 Physical Machine_2 LPAR_2... (6 Replies)
Discussion started by: filosophizer
6 Replies

4. UNIX for Dummies Questions & Answers

Increase size to sd[b-c]

hi guys I am working on my vmware workstation. I have a /dev/sdb which is 5GB. I am using LVM. Now I increase /dev/sdb 2 more GB. fdisk -l shows 7 GB but pvscan still shows 5GB. how do I make my system recognize the new 7GB added and be able to add those to my physical volumen and... (1 Reply)
Discussion started by: kopper
1 Replies

5. AIX

How to increase the filesystem size in HACMP

How to increase the filesystem size in HACMP. what is the difference between normal chfs command and increase the filesystem size in HACMP. (4 Replies)
Discussion started by: AIXlearner
4 Replies

6. Solaris

Largest LUN size in Solaris 10

What is the largest possible LUN size that can be presented to Solaris 10. I've been googling a lot about this. The new EFI lablels (an alternative to VTOC) supports LUNs greater than 2TB. I need to know the upper limit. please help me find it. (4 Replies)
Discussion started by: pingmeback
4 Replies

7. UNIX for Dummies Questions & Answers

Increase salt size

Unix protect its password by using salt It that mean larger the salt size the more secure? if the salt size increase greatly, will the password still able to be cracked? thank you for helping (1 Reply)
Discussion started by: cryogen
1 Replies

8. AIX

Problem mapping LUN disk from VIOS to the LPAR

Hello guys, It would be so nice of you if someone can provide me with these informations. 1) My SAN group assigned 51G of LUN space to the VIO server.I ran cfgdev to discover the newly added LUN. Unfortunately most of the disks that are in VIO server is 51G. How would I know which is the newly... (3 Replies)
Discussion started by: solaix14
3 Replies

9. AIX

HACMP LV size is not reflecting

Hi i increased the lv size using smit hacmp. but, the new size is not reflecting.. why?. the pp size is 512 MB. before it was 4 PP's. i increased to 10 PP's. when i type df -m /xxx.. it is showing 2GB only. see the info below.. root@db:/ > df -m /xxx/xxx Filesystem MB blocks Free... (2 Replies)
Discussion started by: honeym210
2 Replies

10. HP-UX

increase size

Hi All, one of the mount point in Hp ux server has reached 95% its a data base file and can not be deleted. so i want to know how to increase the size of mount point i am new to unix ,please help me (1 Reply)
Discussion started by: jyoti
1 Replies
Login or Register to Ask a Question