Yes I know 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.
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.
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)
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)
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)
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)
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)
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)
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)
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)
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
LEARN ABOUT PLAN9
kfs
KFS(4) Kernel Interfaces Manual KFS(4)NAME
kfs - disk file system
SYNOPSIS
disk/kfs [ -rc ] [ -b n ] [ -f file ] [ -n name ] [ -s ]
DESCRIPTION
Kfs is a local user-level file server for a Plan 9 terminal with a disk. It maintains a hierarchical Plan 9 file system on the disk and
offers 9P (see intro(5)) access to it. Kfs begins by checking the file system for consistency, rebuilding the free list, and placing a
file descriptor in /srv/name, where name is the service name (default kfs). If the file system is inconsistent, the user is asked for per-
mission to ream (q.v.) the disk. The file system is not checked if it is reamed.
The options are
b n If the file system is reamed, use n byte blocks. Larger blocks make the file system faster and less space efficient. 1024 and 4096
are good choices. N must be a multiple of 512.
c Do not check the file system.
f file Use file as the disk. The default is /dev/sd0fs.
n name Use kfs.name as the name of the service.
r Ream the file system, erasing all of the old data and adding all blocks to the free list.
s Post file descriptor zero in /srv/service and read and write protocol messages on file descriptor one.
EXAMPLES
Create a file system with service name kfs.local and mount it on /n/kfs.
% kfs -rb4096 -nlocal
% mount -c /srv/kfs.local /n/kfs
FILES
/dev/sd0fs
Default file holding blocks.
SOURCE
/sys/src/cmd/disk/kfs
SEE ALSO kfscmd(8), mkfs(8), prep(8), wren(3)KFS(4)