KfWiki: Solaris is shit

Solaris is shit

I honestly don't care who is using it or why would anyone prefers it. Avoid it, trash it even. It's built to over-complicate things. It has zero advantage over Linux. Stable is a big word - DOS is stable, that doesn't make it a good OS. IBM managed to deliver great products like Eclipse, most of its other products stinks. If you have experience on DB2, WebSphere, IHS.. you know what I mean. Sun pushed out Java which revolutionized the software industry. But yet its other products simply has no value of existence.

Sub-topics

Kernel Parameters
PostInstallation
Svc Madness
Library search path

Network configuration

Solaris has got to be the most stupid OS on earth.

configure interface

ifconfig e1000g1 plumb
ifconfig e1000g1 192.168.75.195 netmask 255.255.252.0 up
# ndd -get /dev/e1000g1 link_status
0
# ndd -get /dev/e1000g1 link_speed
0

config files

Edit /etc/netmasks, /etc/hosts, and /etc/hostname.e1000g1

192.168.1.0 255.255.255.0

192.168.1.1 solaris.sucks.com

solaris.sucks.com

mtu

Not surprisingly, this is also stupid.

# change all 0 to 3 to allow jumbo frame. man e1000g for more detail
MaxFrameSize=3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3;

Reboot and you will be able to change mtu with ifconfig.

svc

To make a change in sendmail startup options, one needs to go through the followings. It's pure crap. If one doesn't know UNIX, they should not use Solaris. If one already know UNIX, they won't know Solaris' peculiar way of doing things. It just sucks.

vi /lib/svc/method/smtp-sendmailsvccfg
svccfg import /var/svc/manifest/network/smtp-sendmail.xml
svcadm restart sendmail

Restart services (inetd)

	 pkill -HUP inetd

Install packages from sunfreeware.com

gunzip package.gz
pkgadd -d package
pkgrm SMCpackage

Swap file

Display swap file usage

swap -s
swap -l

Increase swap with a file

mkfile 250m /var/newswap
swap -a /var/newswap

The mkfile command makes a file of a specified size. The swap -a command adds the file to the swap space. If you have a free slice, such as /dev/dsk/c0t0d0s5, you can add that to the swap space temporarily with the following command:

swap -a /dev/dsk/c0t0d0s5

These swap files will disappear on reboot. To make them permanent, edit /etc/vfstab

NFS

On the server, edit /etc/dfs/dfstabe

share -F nfs -o rw=1.2.3.4 -d "my share" /my/share

run "svcadm enable network/nfs/server" or "/etc/init.d/nfs.server start" to start nfs server

On the client

mount -F nfs -o vers=2 1.2.3.5:/my/share /my/nfs/mount

And/or create a permanent entry in vfstab:

server1:/share         -                       /server1        nfs     -       yes     rw,soft

ftp

http://sharetab.com/?p=17

Hardware

lspci = prtdiag

Memory Usage

# list top 30 virtual memory usage
prstat -s size -n 30

# sort by rss
prstat -s rss

# sort by cpu use
prstat -s cpu

# ps with rss
ps -efly


# Displaying Solaris kernel memory usage
$ mdb -k

> ::memstat
Page Summary                Pages                MB  %Tot
------------     ----------------  ----------------  ----
Kernel                      13834               108   11%
Anon                        15663               122   12%
Exec and libs                2040                15    2%
Page cache                   7827                61    6%
Free (cachelist)            14248               111   11%
Free (freelist)             75882               592   59%

Total                      129494              1011
Physical                   127634               997

If one use ZFS on solaris, the default settings allocates a lot of ram for zfs arc cache. To set up a limit (512M in the following example), add to /etc/system:

set zfs:zfs_arc_max = 5368709120

Check usage with

kstat zfs:0:arcstats:size

Increase ulimit

projadd -U oracle -K “process.max-file-descriptor=(priv,10240,deny)” user.oracle

Unlock user and set it to never expire

passwd -x -1 <account>

Identify hardware architecture

isainfo -v

Support

Online PC Support

KfWiki : Solaris