Daz – Page 29 – sigtar.com

opensolaris – smbd issues?

Posted on July 27, 2009 by Daz — No Comments ↓

Hmm… i’ve been having problems since the 2009.06 (snv_111b) update with cifs.

Cant pin it exactly as it could be “load” related… hmmm.

found this ? http://opensolaris.org/jive/thread.jspa?threadID=107681 this also may be a clue.. http://opensolaris.org/jive/thread.jspa?threadID=92472&tstart=75

imapd ? might have to go back to 2008.11

You might get better performance if you enable oplocks but
there are known issues with it but you can do it just to
see if you see any difference:

svccfg -s smb/server setprop smbd/oplock_enable=boolean: true

So far running the above command has fixed things for me? I’ll update if the problem returns.

svccfg -s smb/server setprop smbd/oplock_enable=boolean: true

Updated : 27/07/2009

Problem came back, so i’m updating to 117 as per comments below

OpenSolaris – Headless server

Posted on July 26, 2009 by Daz — No Comments ↓

I’ve moved from a CentOS linux distro running vmware server 2.0 to OpenSolaris running VirtualBox. My previous system was totally headless and i wanted something similar to replace it.

I’ve just started getting into OpenSolaris for many reasons (Sun has some cool stuff – ZFS / VirtualBox). But I have always wanted to run OpenSolaris as a headless server, and from what i initially found VirtualBox didn’t have the easy to use autostart on boot features that vmware server had. But there are always ways to get things working…

OpenSolaris 2008.11 has desktop sharing (system->preferences->desktop sharing) which is half of the job — enable this.

I had issues if i used a password protected session (it kept prompting on the actual console for password to unlock the key chain), so chose not to prompt for password for now. Now every time after you have logged in you are able to connect to your machine via VNC. (veno-server)

The other half of the problem is how to have the machine automatically log on as a user on boot-up. This is easily enabled via /etc/x11/gdm/custom.conf or gdmadmin. See this post for more details on the autologon.

Updated : 26/07/2009

After a bit of playing about I’ve found another way to make opensolaris the perfect headless box. First fire up gdmsetup and enable the required remote sessions.

Go to the “Remote” tab and set the style to “same as local”, then under security ensure that “Deny TCP connections to Xserver” is not checked.

Next go into the services GUI and tick the box next to X server (x11/xvnc-inetd). Next type;

svcs | grep vnc

Disable all vnc services except the one we want to enable (below);

svcadm enable xvnc-inetd

Now to get the vnc session to remain open when you disconnect update the service with the following parameter change;

svccfg -s xvnc-inetd setprop inetd/wait = boolean: true

Reboot. Done.

You should upon reboot be able to vnc straight into the box with a session that wont reset on disconnect.

fedora 11 – LAMP install

Posted on July 23, 2009 by Daz — No Comments ↓

Setting up LAMP on fedora 11… First install the required modules.

yum install -y httpd.i586 mysql.i586 mysql-server.i586 php.i586 php-mysql.i586 php-gd.i586

Next i’m copying my web source from another linux machine. I’ve run these commands from the destination machine…

cd /var/www/html

rsync -ave ssh 192.168.9.10:/var/www/html/ .

Now my mysql data…

cd /var/lib/mysql

rsync -ave ssh 192.168.9.10:/var/lib/mysql/ .

Accept the certificate and enter the source root password. Next fire up the services… I usually just go into “setup” then “system services” and enable both httpd and mysqld

Reboot. Done

Opensolaris : Citrix XenServer / ESX – Hooking into ZFS

Posted on July 22, 2009 by Daz — No Comments ↓

To share your zfs pool via NFS (that works with Citrix Xen / ESX) to a host called “esxhost”;

zfs set sharenfs=rw,nosuid,root=esxhost tank/nfs

Note : You MUST have a resolvable name from the opensolaris box. i.e. you should be able to ping it. I have tried with ip’s only and it will fail. I have edited the /etc/hosts file to include the following line for my config;

This also requires that you are using both DNS and Files in your /etc/nsswitch.conf file. You should have a line like so;

# You must also set up the /etc/resolv.conf file for DNS name
# server lookup. See resolv.conf(4). For lookup via mdns
# svc:/network/dns/multicast:default must also be enabled. See mdnsd(1M)
hosts: files dns mdns

# Note that IPv4 addresses are searched for in all of the ipnodes databases
# before searching the hosts databases.
ipnodes: files dns mdns

i’ve also run this before hand; (to allow full access)

chmod -R 777 /tank/nfs

Update : check this guide http://blog.laspina.ca/ubiquitous/running-zfs-over-nfs-as-a-vmware-store

Update 2: there are known issues with waiting for sync when using both NFS and ZFS together…. There are reasons why you shouldnt do this, but in a test enviornemnt disabling sync at ZFS level may help performance (zfs set sync=disabled)

I like this idea of spliting up your SSD too… again in test enviornment no problems, in production i would utilize the entire drive to the tasks https://blogs.oracle.com/ds/entry/make_the_most_of_your

opensolaris / zfs – whitebox build

Posted on July 19, 2009 by Daz — No Comments ↓

I’ve built a little server for home use, but it pales in comparison to this beast… This type of setup would be perfect for a lab / test environment that requires lots of fast and reliable disk. SCSI drives are fading out, SATA can perform if its setup right. When you look at the price of the entire build you wonder why corporations continue to spend the big bucks on the big storage names.

Check out this build (very nice clear guide) http://www.stringliterals.com/?p=77

Awesome piece of work.