In the HMC profile, I can see there are 3 physical FC assigned to the server as attached.
I also see 6 FC ports which is equivalent from 3x2=6
Exactly. Look at the "location codes" which i have marked bold:
fcs0 and fcs1 are port 0 and 1 from the same adapter, etc. for the others. In the HMC display you posted you see the "real" (physical) location codes where the adapters are located in the system. I.e. one adapter is located in the CEC with serial number 9K83854 in slot P1-C5.
Quote:
Originally Posted by Phat
Can we say the "physical" FC adapter here are actually the real physical FC adapter from Power Machine which are assigned to the lpar not via VIOS (with virtual FC adapter) ?
Yes, absolutely. The reason for the VIOS is this: you have some "anonymous" resources like memory and CPUs which you can easily transfer between LPARs. You cannot do this with adapters, obviously, because they are connected to something and they are configured on the "outside" too. Neither you can do that with disks because they contain data which makes them the opposite of "anonymous". Therefore there is the VIOS, which takes all the physical ressources, creates virtual constructs representing these and then gives these constructs to the LPAR. This way you can move an LPAR from on managed system to the other because VIOSes ahve special means to transfer the physical layer between one another and for the LPAR the virtual construct it uses never changes - just the way it is representing some physical ressource.
Hi,
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... (0 Replies)
Hi,
I want to know if there is any command which will tell me if an AIX machine is a LPar or not. I am using "lparstat -i" but it does not work on all AIX machines. Is there any generic command by whose output I will come to know if it is an LPar or not?
Please help.
Thanks,
Vineet (3 Replies)
Hello, we have a wierd and urgent problem, with a few of our p595 LPARs running AIX 5.3. The LPARs ran AIX 5.3 TL 7 and booted off EMC SAN disks, using EMC Powerpath. Every boot we run "pprootdev on" and "pprootdev fix". We can issue "bosboot -a" and we can reboot the machines.
Now, on two... (2 Replies)
Hi All,
I recently got a connection to the SAN through a fibre channel on my solaris box:
#luxadm -e port
/devices/pci@1d,700000/SUNW,qlc@1/fp@0,0:devctl CONNECTED
#ls -l /dev/cfg
lrwxrwxrwx 1 root root 48 Feb 23 12:31 c4 -> ../../devices/pci@1d,700000/SUNW,qlc@1/fp@0,0:fc
I then... (2 Replies)
Hi Guru, my question is that can I create LPAR in AIX 5.3, 6.0, 6.1 by using smit lpar, rather than using HMC or AIX Commands? Thank you very much. Mir Alihttp://xwww.unix.com/images/icons/icon5.gif (3 Replies)
I have login into a server, and when i launch this command uname -L.
I can see there is a LPAR.
But is there anymore commands i can use to get more information on the LPAR ?
like it is VIO ?
wat the IP address ?
etc, etc.
please help. Thank you. (7 Replies)
We are running into a problem that we thought had solved but no go...
We have multiple machine types but 1 AIX and 2 i550 (AS/400) with 4 lpar each.
Existing AIX is an old (2004 vintage) machine with 5.2 on it for historical use only.
Existing Power6 i550 running code that will used... (6 Replies)
Hello,
I've set up email alerts on AIX Servers. so that i can get email notifications (via mail relay server) when ever there is abnormal behavior.
for example
1) my script monitors CPU/disk/memory etc... when it reaches high water ark, it will send an email alert.
2) disk usage alerts
3)... (5 Replies)
We have 2 LPAR. LPAR #1 have a Application, Database Server process (ctree Server) and SAN+Physical Table. LPAR#2 has only Application.
Both Application process are connected to Database via C-tree Server Process (Running on LPAR #1..
We want to keep one Active C-tree Server and one Backup... (1 Reply)
Discussion started by: gabhanes
1 Replies
LEARN ABOUT PLAN9
mnt
MNT(3) Library Functions Manual MNT(3)NAME
mnt - attach to 9P servers
SYNOPSIS
#M
DESCRIPTION
The mount driver is used by the mount system call (but not bind; see bind(2)) to connect the name space of a process to the service pro-
vided by a 9P server over a communications channel. After the mount, system calls involving files in that portion of the name space will
be converted by the mount driver into the appropriate 9P messages to the server.
The mount system call issues session and attach(5) messages to the server to identify and validate the user of the connection. Each dis-
tinct user of a connection must mount it separately; the mount driver multiplexes the access of the various users and their processes to
the service.
File-oriented system calls are converted by the kernel into messages in the 9P protocol. Within the kernel, 9P is implemented by procedure
calls to the various kernel device drivers. The mount driver translates these procedure calls into remote procedure calls to be transmit-
ted as messages over the communication channel to the server. Each message is implemented by a write of the corresponding protocol message
to the server channel followed by a read on the server channel to get the reply. Errors in the reply message are turned into system call
error returns.
A read(2) or write system call on a file served by the mount driver may be translated into more than one message, since there is a maximum
data size for a 9P message. The system call will return when the specified number of bytes have been transferred or a short reply is
returned.
The string is an illegal file name, so this device can only be accessed directly by the kernel.
SEE ALSO bind(2)SOURCE
/sys/src/9/port/devmnt.c
BUGS
When mounting a service through the mount driver, that is, when the channel being multiplexed is itself a file being served by the mount
driver, large messages may be broken in two.
MNT(3)