Sponsored Content
Full Discussion: DISK and MPIO
Operating Systems AIX DISK and MPIO Post 303033186 by Phat on Monday 1st of April 2019 07:39:59 AM
Old 04-01-2019
Quote:
You need to use a driver that works (duh! ;-)) ).
Yes I know Smilie but can we pickup whatever 1 disk and make it use AIX PCM or vice versa? Just want to know the possibility.

But I wonder why how they can have the 2 different drivers. I detect hdisk18 belongs to IBMSVC which is using AIX PCM whereas the others are using SDDPCM.

Code:
[root@server2] / > manage_disk_drivers -l
Device              Present Driver        Driver Options
2810XIV             AIX_AAPCM             AIX_AAPCM,AIX_non_MPIO
DS4100              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4200              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4300              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4500              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4700              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS4800              AIX_APPCM             AIX_APPCM,AIX_fcparray
DS3950              AIX_APPCM             AIX_APPCM
DS5020              AIX_APPCM             AIX_APPCM
DCS3700             AIX_APPCM             AIX_APPCM
DCS3860             AIX_APPCM             AIX_APPCM
DS5100/DS5300       AIX_APPCM             AIX_APPCM
DS3500              AIX_APPCM             AIX_APPCM
XIVCTRL             MPIO_XIVCTRL          MPIO_XIVCTRL,nonMPIO_XIVCTRL
2107DS8K            NO_OVERRIDE           NO_OVERRIDE,AIX_AAPCM,AIX_non_MPIO
IBMFlash            NO_OVERRIDE           NO_OVERRIDE,AIX_AAPCM,AIX_non_MPIO
IBMSVC              NO_OVERRIDE           NO_OVERRIDE,AIX_AAPCM,AIX_non_MPIO

So what is IBMSVC? can we move disk from IBMSVC to 2017DS8K? I can see that all the LUNs comes from 1 source storage and visible to all 4 FCs adapters.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

AIX MPIO and EMC

We are looking at running MPIO for it's redundancy and load balancing benefits. Does anyone know what pieces of software or modules are needed on the VIO server to get load balancing to work. Remember we are using EMC's DMX3500 storage system. We no longer want to use Powerpath. :rolleyes: ... (2 Replies)
Discussion started by: vxg0wa3
2 Replies

2. AIX

AIX 5.3 MPIO vs RDAC on DS4000 range

Hi I would like to ask what the benefits are of changing from RDAC to MPIO when connecting to a DS4000 on AIX 5.3? I have heard that IBM MPIO "might" support more than 1 active path to a LUN when connecting to a DS4800 through more than 1 host connection on the same AIX client. I understand that... (8 Replies)
Discussion started by: kimyo
8 Replies

3. AIX

AIX native MPIO

Hi folks, does anybody have a link to a documentation how to implement native MPIO on AIX? We are using EMC PowerPath and Datacore SanSymphony/Cambex for this so far and I wasn't able to find a good description on that topic. All I know so far is that mkpath, chpath and lspath are used to... (3 Replies)
Discussion started by: zaxxon
3 Replies

4. AIX

SDD SDDPCM MPIO lspath Jargon

Can anyone recommend me some reading material surrounding how AIX handles LUNs: - with and without MPIO installed - with and without SDD or SDDPCM installed Where does lspath sit in all of this (MPIO layer?). Can a system be built with just MPIO software? Is MPIO software even needed? I guess... (0 Replies)
Discussion started by: apra143
0 Replies

5. AIX

MPIO Driver

On a particular LPAR, I was running AIX 5.3 TL 3. On Monday I did an update of the LPAR to 5.3 TL 9 SP2. The install was smooth, but then I ran into a problem. The MPIO driver does not work with LSI's StoreAge (SVM4). I did some looking, and looks like 5.3 TL3 = IBM.MPIO 5.3.0.30 5.3... (0 Replies)
Discussion started by: clking
0 Replies

6. AIX

MPIO reliability

Hi, we have a vew boxes using MPIO and they are connected to some virtualization software managing some disk subsystems, offering volumes to the AIX boxes. Sometimes when a cable has been plugged out for a test or when a real problem occurs, using lspath to show the state of the paths shows... (8 Replies)
Discussion started by: zaxxon
8 Replies

7. AIX

MPIO - list of supported arrays

Hello, we are planning to deploy some of our databases on AIX/LPAR based servers (we didn't bought it yet ...). IBM's engineers says that if we want to boot them from SAN the hardware array has to be compatible with MPIO but they don't want to deliver any document with list of arrays supported... (5 Replies)
Discussion started by: andy55
5 Replies

8. AIX

Upgrading from native MPIO to SDDPCM AIX 6.1

We have AIX 6.1 system attached to SAN disks (DS4700 and DS8100) thru SVC. Initially when the system was I forgot to install sddpcm drivers. and wanted to know how can i go with the installation of the sddpcm drivers. My understandin going thru the manual ... (3 Replies)
Discussion started by: mk8570
3 Replies

9. AIX

Failed mpio path on AIX5.3

I have found failed mpio path on AIX and enabled that failed path as below failed path on AIX bash-3.2# lspath -l hdisk10 Enabled hdisk10 fscsi0 Enabled hdisk10 fscsi0 Failed hdisk10 fscsi3 Enabled hdisk10 fscsi3 Enabled failed path as below chpath -l hdisk10 -p fscsi3 -s enable... (13 Replies)
Discussion started by: murali969
13 Replies

10. AIX

Need Help with SDD / SDDPCM / MPIO

This is getting very confusing for me, and appreciate if someone can help. Platform: Power VM ( Virtual I/O Server) ioslevel 2.1.3.10-FP23 # oslevel -s 6100-05-00-0000 Storage: IBM DS4300 Two HBAs - Dual Port Fibre Adapter Channels Each card has two ports , so a total of 4 ports going... (3 Replies)
Discussion started by: filosophizer
3 Replies
CHI::Driver::RawMemory(3pm)				User Contributed Perl Documentation			       CHI::Driver::RawMemory(3pm)

NAME
CHI::Driver::RawMemory - In-process memory cache that stores direct references VERSION
version 0.54 SYNOPSIS
use CHI; my $hash = {}; my $cache = CHI->new( driver => 'RawMemory', datastore => $hash ); my $cache = CHI->new( driver => 'RawMemory', global => 1 ); DESCRIPTION
This is a subclass of CHI::Driver::Memory that stores references to data structures directly instead of serializing / deserializing. This makes the cache faster at getting and setting complex data structures, but unlike most drivers, modifications to the original data structure will affect the data structure stored in the cache, and vica versa. e.g. my $cache = CHI->new( driver => 'Memory', global => 1 ); my $lst = ['foo']; $cache->set('key' => $lst); # serializes $lst before storing $cache->get('key'); # returns ['foo'] $lst->[0] = 'bar'; $cache->get('key'); # returns ['foo'] my $cache = CHI->new( driver => 'RawMemory', global => 1 ); my $lst = ['foo']; $cache->set('key' => $lst); # stores $lst directly $cache->get('key'); # returns ['foo'] $lst->[0] = 'bar'; $cache->get('key'); # returns ['bar']! CONSTRUCTOR OPTIONS
Same as CHI::Driver::Memory. SIZE AWARENESS
For the purpose of size-awareness, all items count as size 1 for this driver. (Because data structures are not serialized, there's no good way to determine their size.) # Keep a maximum of 10 items in cache # my $cache = CHI->new( driver => 'RawMemory', datastore => {}, max_size => 10 ); ACKNOWLEDGEMENTS
Thanks to Yuval Kogman whose Cache::Ref inspired me to do this. SEE ALSO
CHI::Driver::Memory, CHI AUTHOR
Jonathan Swartz <swartz@pobox.com> COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Jonathan Swartz. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. perl v5.14.2 2012-05-30 CHI::Driver::RawMemory(3pm)
All times are GMT -4. The time now is 02:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy