Sponsored Content
Full Discussion: Changing AIX LUN paths
Operating Systems AIX Changing AIX LUN paths Post 302994206 by agent.kgb on Monday 20th of March 2017 11:38:09 AM
Old 03-20-2017
Quote:
Originally Posted by bbbngowc
Hello,
I'm thinking this can be done in this order:
  1. unmount the filesystems
  2. varyoffvg vg
  3. make the changes on the storage system (EMC)
  4. cfgmgr
  5. varyonvg vg
  6. mount the filesystems
I don't know this side of EMC, but let's assume, that nothing will be changed on the underlying device during changing the connection type, then you need several additional steps:

-1. make backup
0. notice all PVIDs of all disks, you have
2.5. exportvg all volume groups, rmdev all the disks, you plan to change
4.5. make sure, that you see the same PVIDs on the new disks. If you don't - go back and doesn't try to do anything further.
5. importvg all the volume groups, you exported before.

It could be also good to notice VG major numbers. Sometimes they are useful.
 

10 More Discussions You Might Find Interesting

1. AIX

AIX vpath lun

Hi everyone, how can I check if I have LUNs in a server and the LUNīs vpath in AiX? thx (5 Replies)
Discussion started by: jcpetela
5 Replies

2. AIX

AIX not detecting LUN

Hello All, Really hoping someone can help. We have an AIX server connected to a Quantum SDLC sitting in front of an S10K library. The library has 3 logical partitions (two LTO4, one LTO3), so it requires 3 distinct medium changers. The SDLC presents the 3 luns (which are the medium... (1 Reply)
Discussion started by: jwholey
1 Replies

3. Solaris

I have LUN ID, how to find disk relate to that LUN ID?

I have a list of LUN ID, my task is to find if disk has been added or not. How do I do that? I have been searching the forum and not able to find answer. thanks (4 Replies)
Discussion started by: uuontario
4 Replies

4. AIX

Mount a SAN LUN which contains clone copy - AIX 6.1

Hello Everyone, Can someone help me to mount a SAN hdisk which contains a clone data copy(san) of the remote server to the another machine. Both servers are running in AIX. Thanks in advance ! Regards, Gowtham.G (3 Replies)
Discussion started by: gowthamakanthan
3 Replies

5. AIX

Increase LUN size in AIX with VIOS and HACMP

Hello! I have this infraestructure: - 1 POWER7 with single VIOS on Site A. - 1 POWER6 with single VIOS on Site B. - 1 LPAR called NodeA as primary node for PowerHA 6.1 on Site A. - 1 LPAR called NodeB as secondary (cold) node for PowerHA 6.1 on SiteB. - 1 Storage DS4700 on Site A. - 1... (8 Replies)
Discussion started by: enzote
8 Replies

6. Solaris

Mpathadm showing no paths to 1 lun, others luns are fine

Hi, I've noticed that mpathadm states that one of our luns has no active paths: /dev/rdsk/c6t60000970000298700009533031324333d0s2 Total Path Count: 4 Operational Path Count: 4 /dev/rdsk/c6t60000970000298700009533031333037d0s2 ... (3 Replies)
Discussion started by: badoshi
3 Replies

7. AIX

Add new LUN in AIX

Hello all! I have not so much experience with AIX We have test p5 server. On server was deployed VIOS + 3 LPAR + AIX6.1 There is a test HACMP cluster of two nodes, the cluster is identical to production cluster (all clusters and hosts have been configured by specialist of integrator company and... (3 Replies)
Discussion started by: Ravil Khalilov
3 Replies

8. AIX

AIX help -reconnect EMC lun

we have an old AIX system with important data on an EMC LUN. the AIX server crashed and we had to rebuild it with the old AIX os 5.8. how do we reconnect the EMC LUN without losing the data? (15 Replies)
Discussion started by: jhudson12
15 Replies

9. Solaris

How to avoid seeing various paths to just one LUN?

Hi I have a server running solaris 10 in which the NetAppadmin has just presented one LUN of 200Gb, but when running: bash-3.2# format Searching for disks...done c3t500A09828DE3E799d1: configured with capacity of 199.94GB c3t500A09829DE3E799d1: configured with capacity of 199.94GB ... (5 Replies)
Discussion started by: fretagi
5 Replies

10. Post Here to Contact Site Administrators and Moderators

AIX server do not detect LUN from HP storage

ssssssssssss (0 Replies)
Discussion started by: sampathenjoy
0 Replies
ISCSI(4)						   BSD Kernel Interfaces Manual 						  ISCSI(4)

NAME
iscsi -- iSCSI initiator SYNOPSIS
To compile this driver into the kernel, place the following line in the kernel configuration file: device iscsi Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): iscsi_load="YES" DESCRIPTION
The iscsi subsystem provides the kernel component of an iSCSI initiator. The initiator is the iSCSI client, which connects to an iSCSI tar- get, providing local access to a remote block device. The userland component is provided by iscsid(8) and both the kernel and userland are configured using iscsictl(8). The iscsi subsystem is responsible for implementing the "Full Feature Phase" of the iSCSI protocol. SYSCTL VARIABLES
The following variables are available as both sysctl(8) variables and loader(8) tunables: kern.iscsi.ping_timeout The number of seconds to wait for the target to respond to a NOP-Out PDU. In the event that there is no response within that time the session gets forcibly restarted. kern.iscsi.iscsid_timeout The number of seconds to wait for ctld(8) to establish a session. After that time iscsi will abort and retry. kern.iscsi.login_timeout The number of seconds to wait for a login attempt to succeed. After that time iscsi will abort and retry. kern.iscsi.maxtags The maximum number of outstanding IO requests. kern.iscsi.fail_on_disconnection Controls the behavior after an iSCSI connection has been dropped due to network problems. When set to 1, a dropped connection causes the iSCSI device nodes to be destroyed. After reconnecting, they will be created again. By default, the device nodes are left intact. While the connection is down all input/output operations are suspended, to be retried after the connection is reestablished. SEE ALSO
iscsi.conf(5), iscsictl(8), iscsid(8) HISTORY
The iscsi subsystem first appeared in FreeBSD 10.0. AUTHORS
The iscsi subsystem was developed by Edward Tomasz Napierala <trasz@FreeBSD.org> under sponsorship from the FreeBSD Foundation. BSD
September 11, 2014 BSD
All times are GMT -4. The time now is 01:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy