Visit Our UNIX and Linux User Community

VIO SAN STORAGE LPAR ( Dynamically increasing size )

Thread Tools Search this Thread
Operating Systems AIX VIO SAN STORAGE LPAR ( Dynamically increasing size )
# 1  
Old 08-29-2009
VIO SAN STORAGE LPAR ( Dynamically increasing size )


Is there a way to dynamically increase the size of virtual disk on the LPAR. The virtual disk is coming from my VIO Server. From my SAN I have allocated a disk to VIO Server and from VIO Server to my LPAR....If I increase the space of the logical SAN DISK (DS 4700 using IBM TotalStorage Software) How can I get it updated on the LPAR without shutting down the LPAR or chvg -g in the VIO ?

any way to do it dynamically (without varyoffvg ?)


---------- Post updated at 01:05 PM ---------- Previous update was at 02:16 AM ----------

I found this

Dynamically increasing virtual disk size

If your IBM® System p® AIX® hosts use AIX 5.2 or a later AIX operating system version, the SAN Volume Controller supports the ability to dynamically increase virtual disk (VDisk) size.

The chvg command options provide the ability to grow the size of a physical volume that the Logical Volume Manager (LVM) uses, without interruptions to the use or availability of the system. Refer to the AIX publication System Management Guide: Operating System and Devices for more information.
Parent topic: Configuring the AIX operating system
Help - SAN Volume Controller Customer Information Center
Does this mean, I need to have SVC ?

On IBM site I got this

it might even depend on the storage.
Recently tested scenario of increasing LUN on non rootvg with DS8k with SDDPCM multipath and after chvg -g it worked nice.
But with DS4k (MPIO) it required a reboot of an lpar, after that it was increased, no way without it ... it might even even on the firmware of the storage ...

developerWorks : AIX and UNIX : AIX Forum : Increase LUN Size in rootvg ...

Last edited by filosophizer; 08-29-2009 at 06:13 PM..

Previous Thread | Next Thread
Test Your Knowledge in Computers #182
Difficulty: Medium
yq is a lightweight and portable command-line CSV processor.
True or False?

9 More Discussions You Might Find Interesting

1. AIX

Issue with increasing size of SAN disks on AIX

HI, I have had an issue last night while trying to extend a filesystsem . chvg -g <vg> command cameback with an error 0516-1790 chvg: Failed bootinfo -s hdisk9. Ensure the physical volume is available and try again. 0516-732 chvg: Unable to change volume group u01vg. the VG has 1... (1 Reply)
Discussion started by: xmen01
1 Replies

2. AIX

VIO server does not show new LPAR

Hi All, I've been trying to create a new LPAR for some days now but I can't get the VIO server to recognize the new LPAR. This is what I did: On HMC create new LPAR On HMC create new virtual scsi adapter for LPAR in VIO profile On HMC add new virtual scsi adapter for LPAR with DLPAR... (6 Replies)
Discussion started by: petervg
6 Replies

3. AIX

Possible to connect a LPAR to two different VIO's?

Just a question which may seem dumb to some out there, but then again I am not a super technie so that's my excuse. Is it possible to say provision a test AIX LPAR (has a 10gb boot lun and 20gb data) under a VIO which has connectivity to SAN Array A so it can see the disks provisioned to it,... (2 Replies)
Discussion started by: Johnny1314
2 Replies

4. AIX

LPAR freezes after switching of storage (lpar is mirrored)

Hi all, I have the following configuration 2 ds3524 storage disk systems located over 2 locations 2 P720 server located over 2 locations DS3524 are connected to san switch. Each vio server has 1 fc adapter attached to a san switch. per p720 server 2 virtual io servers. Vio 1 has 1 lun... (2 Replies)
Discussion started by: markiemark
2 Replies

5. AIX

LPAR - What is my VIO (hostname, IP, ...)

I am wondering if there is a command I can run from **with-in** LPAR server (server01) to find out the hostname or IP address or other parameters for VIO server in charge of server01? (1 Reply)
Discussion started by: ms1232
1 Replies

6. AIX

VIO Backing Disk LPAR how to find which one ?

hello Folks, my vio: $ lsmap -all SVSA Physloc Client Partition ID --------------- -------------------------------------------- ------------------ vhost0 U9117.MMA.6534BE4-V2-C11 0x00000003 VTD ... (0 Replies)
Discussion started by: filosophizer
0 Replies

7. AIX

LPAR and vio disk mapping

We have a frame the uses 2 vios that assign disk storage to LPAR's. We have a LPAr with multiple disk and I want to know how do I tell which vio is serving the disk. For example the LPAr has hdisk 0, 1, 2, 3 all the same size. I want to know which vio is serving hdisk0, 1. (4 Replies)
Discussion started by: daveisme
4 Replies

8. UNIX for Dummies Questions & Answers

Unix VIO vs Dynamic LPAR

Can you have a Dynamic LPAR without VIO and if yes is there a benefit to having both? I am attempting to implement VIO and Resource pooling at my company and want to understand the limitations. Also, I have been told the managing and allocation of the Logical Volumes is a time consuming task as... (0 Replies)
Discussion started by: bombers73
0 Replies

9. AIX

Restoring mksysb to vio lpar?

I have a standard template I deploy for each of my AIX servers. It's in a mksysb format which I pulled via the nim server after I originally set it up. I'm trying to restore this mksysb over the wire to a remote system. The remote system is an lpar running under vio (no HMC attached). The disk... (1 Reply)
Discussion started by: scottsl
1 Replies

Featured Tech Videos