Thanks for helping, I had already tested your recommendation but still the same.
I still think it is a limitation on AIX (a magic parameter to change?)
To prove it, I have now narrowed down this issue, I have installed RHEL 6.5 ppc64 on the p710 and set it up as iscsi initiator, the other RHEL 6.5 x86_64 physical (not a VM) as iscsi target
I have now really good iscsi transfer rate ! :
Any idea ? any magic parameter on AIX to change that may help ?
Last edited by frenchy59; 07-22-2016 at 10:40 PM..
Reason: typo and add code tag
Hi you all, I have a BIG performance problem on an Sun E3500, the scenario is described below:
I have several users (30) accessing via samba to the E3500 using an application built on Visual Foxpro from their Windows PC , the problem is that the first guy that logs in demands 30% of the E3500... (2 Replies)
Hello,
i have a a1000 connected to an e6500. There's a raid 10 (12 disks) on the a1000.
If i do a
dd if=/dev/zero of=/mnt/1 bs=1024k count=1000
and then look at iostat it tells me there's a kw/s of 25000.
But if i do a
dd of=/dev/zero if=/mnt/1 bs=1024k count=1000
then i see only a... (1 Reply)
Hello,
I'm running a script on AIX to process lines in a file. I need to enclose the second column in quotation marks and write each line to a new file. I've come up with the following:
#!/bin/ksh
filename=$1
exec >> $filename.new
cat $filename | while read LINE
do
echo $LINE | awk... (2 Replies)
Hello all
We just built a storage cluster for our new xenserver farm. Using 3ware 9650SE raid controllers with 8 x 1TB WD sata disks in a raid 5, 256KB stripe size.
While making first performance test on the local storage server using dd (which simulates the read/write access to the disk... (1 Reply)
Hello,
we have a machine with Solaris Express 11, 2 LSI 9211 8i SAS 2 controllers (multipath to disks), multiport backplane, 16 Seagate Cheetah 15K RPM disks.
Each disk has a sequential performance of 220/230 MB/s and in fact if I do a
dd if=/dev/zero of=/dev/rdsk/<diskID_1> bs=1024k... (1 Reply)
Hello guys,
I have two servers performing the same disk operations. I believe one server is having a disk's impending failure however I have no hard evidence to prove it. This is a pair of Netra 210's with 2 drives in a hardware raid mirror (LSI raid controller). While performing intensive... (4 Replies)
Hi,
I am new registered user here in this UNIX forums.
I am a new system administrator for AIX 6.1. One of our servers performs poorly every time our application (FINACLE) runs many processes/instances. (see below for topas snapshot)
I use NMON or Topas to monitor the server utilization. I... (9 Replies)
Hi
We have an M3000 single physical processor and 8gb of memory running Solaris 10. This system runs two Oracle Databases one on Oracle 9i and One on Oracle 10g.
As soon as the Oracle 10g database starts we see an immediate drop in system performance, for example opening an ssh session can... (6 Replies)
Just a quick note for macOS users.
I just installed (and removed) Parallels Desktop 15 Edition on my MacPro (2013) with 64GB memory and 12-cores, which is running the latest version of macOS Catalina as of this post. The reason for this install was to test some RIGOL test gear software which... (6 Replies)
Discussion started by: Neo
6 Replies
LEARN ABOUT NETBSD
iscsi-target
ISCSI-TARGET(8) BSD System Manager's Manual ISCSI-TARGET(8)NAME
iscsi-target -- service remote iSCSI requests
SYNOPSIS
iscsi-target [-46DV] [-b block length] [-f configuration file] [-p port number] [-s maximum number of sessions] [-t target name]
[-v verbose arg]
DESCRIPTION
iscsi-target is the server for iSCSI requests from iSCSI initiators. iscsi-target listens for discovery and login requests on the required
port, and responds to those requests appropriately.
Options and operands available for iscsi-target:
-4 iscsi-target will listen for IPv4 connections, and respond back using IPv4. This is the default address family.
-6 iscsi-target will listen for IPv6 connections, and respond back using IPv6.
-b blocksize
Specify the underlying block size for iSCSI storage which will be served. The possible sizes are: 512, 1024, 2048, and 4096 bytes,
with the default being 512 bytes.
-D When this option is specified, iscsi-target will not detach itself from the controlling tty, and will not become a daemon. This can
be useful for debugging purposes.
-f configfile
Use the named file as the configuration file. The default file can be found in /etc/iscsi/targets. See targets(5) for more informa-
tion.
-p port number
Use the port number provided as the argument as the port on which to listen for iSCSI service requests from initiators.
-s maximum number of sessions
Allow the maximum number of sessions to be initiated when connecting to the target.
-t filename
The target name (as it appears to the iSCSI initiator) can be specified using this flag.
-V iscsi-target will print the utility name and version number, and the address for bug reports, and then exit.
-v argument
The amount of information shown can be varied by using this command. Possible values of argument are net to show network-related
information, iscsi to show iSCSI protocol-related information, scsi to show SCSI protocol information, and all to show information
from all of the above arguments.
FILES
/etc/iscsi/targets the list of exported storage
/var/run/iscsi-target.pid the PID of the currently running iscsi-target
SEE ALSO targets(5)HISTORY
The iscsi-target utility first appeared in NetBSD 4.0.
BSD May 27, 2006 BSD