Am sters /etc/name_to_major ! belea mare dar nu e totul pierdut

In cazul in care ai sters sau te-ai ales cu un /etc/name_to_major corupt si daca nu ai nici backup (snaphot sau pe banda sau ... ceva/orice ) in primul rand ar trebui sa te gandesti sa-ti incerci norocul intr-un alt domeniu de activitate. Inainte insa de a schimba/parasi job-ul trebuie sa stii ca nu e totul pierdut.
FOARTE IMPORTANT !! - sa nu restartezi serverul pentru ca:

- Nu o sa mai porneasca
- Poti folosi kernelul care ruleaza deja pentru a recrea fisierul pierdut
(pe x86 gasesti informatia asta si in boot_archive)

Iata cum se poate reface fisierul:

#!/bin/ksh
i=0
while ((i < 1000 ))
do
print "0t$i::major2name" | mdb -k | read x && echo $x $i
let i=i+1
done

Redirectezi output-ul de la comanda de mai sus intr-un fisier pe care-l copiezi peste /etc/name_to_major . Schimbi ownerul si permisiunile si ar trebui sa fie ok .

chown root:sys /etc/name_to_major
chmod 644 /etc/name_to_major

Driver Configuration File to Force the Sun GigaSwift Ethernet Adapter's Parameters

For ease of administration it is advisable to put the configuration file in the same directory as the driver itself.There is a 64-bit driver located in the /platform/sun4u/kernel/drv/sparcv9 directory and a 32-bit driver in the /platform/sun4u/kernel/drv directory.

Example 1

As a first example let's look at the devices on a Sun Fire 480R. If we look at the path_to_inst file on this type of system we may see something similar to the following.

# grep '"ce"' /etc/path_to_inst
"/pci@9,700000/network@2" 0 "ce"
"/pci@9,600000/network@1" 1 "ce"

Each line in the file contains the following three fields as described in the man page for path_to_inst(4).

"physical-name" instance-number "driver-binding-name"

So, we see two instances of the device, 0 and 1, which will be seen as ce0 and ce1 respectively in the output from the ifconfig -a command if the interfaces are plumbed.

To force ce0 to run at 100 Mbit/s full duplex and ce1 to run at 1 Gbit/s full duplex we would need to place the following two lines in the ce.conf file.

name="ce" parent="/pci@9,700000" unit-address="2" adv_autoneg_cap=0 adv_1000fdx_cap=0
adv_1000hdx_cap=0 adv_100fdx_cap=1 adv_100hdx_cap=0 adv_10fdx_cap=0 adv_10hdx_cap=0;

name="ce" parent="/pci@9,600000" unit-address="1" adv_autoneg_cap=0 adv_1000fdx_cap=1
adv_1000hdx_cap=0 adv_100fdx_cap=0 adv_100hdx_cap=0 adv_10fdx_cap=0 adv_10hdx_cap=0;

The important points to note here are:

1. The name, parent and unit-address parameters should be enclosed in double quotes. Should you wish to force all ce interfaces to the same speed and duplex you do not need to include these parameters.
   • The "name" parameter is the driver binding name for the device and will always be "ce". You may have seen previous revisions of this document which state that it should be "pci108e,abba". While this works you should use the driver binding name (ce) due to its simplicity and the fact that it does not tie the configuration to a specific type of PCI card as defined in the /etc/driver_aliases file.
   • The "parent" parameter is that part of the device path (or physical-name) prior to the "/network@" part. In a Sun Cluster environment you may see the device path prefixed with "node@<n>" where <n> is replaced by a digit. This prefix should not be included in the parent parameter.
   • The "unit-address" parameter is the number immediately after the "network@" part in the device path, it is not the device instance.
2. We have defined more than the minimum set of parameters to effect this change since we are being deliberately verbose for the sake of completeness and to reduce the scope for error.
3. Each entry in the file should be on a separate line and terminated with a semi-colon. While the example above may at first sight appear to be spread over several lines there are in fact only two lines, one for each instance of the device.
4. These parameters will take effect following a system reboot, only the ndd command may be used to effect dynamic changes.

Example 2

As a second example let's look at the interfaces on a Sun Fire 4800 domain where the /etc/path_to_inst file contains the following entries.

"/ssm@0,0/pci@18,600000/pci@1/network@0" 0 "ce"
"/ssm@0,0/pci@18,600000/pci@1/network@1" 1 "ce"               
"/ssm@0,0/pci@19,700000/pci@3/network@0" 2 "ce"
"/ssm@0,0/pci@1c,600000/pci@1/network@0" 3 "ce"               
"/ssm@0,0/pci@1c,600000/pci@1/network@1" 4 "ce"               
"/ssm@0,0/pci@1d,700000/network@3" 5 "ce"    

In order to force ce5 to 1000 Mbit/s full duplex and ce0 and ce3 to 100Mbit/s full duplex the ce.conf file should contain the following three lines.

name="ce" parent="/ssm@0,0/pci@1d,700000" unit-address="3" adv_autoneg_cap=0 adv_1000fdx_cap=1
adv_1000hdx_cap=0 adv_100fdx_cap=0  adv_100hdx_cap=0 adv_10fdx_cap=0 adv_10hdx_cap=0;

name="ce" parent="/ssm@0,0/pci@18,600000/pci@1" unit-address="0" adv_autoneg_cap=0
adv_1000fdx_cap=0 adv_1000hdx_cap=0 adv_100fdx_cap=1 adv_100hdx_cap=0 adv_10fdx_cap=0 adv_10hdx_cap=0;

name="ce" parent="/ssm@0,0/pci@1c,600000/pci@1" unit-address="0" adv_autoneg_cap=0
adv_1000fdx_cap=0 adv_1000hdx_cap=0 adv_100fdx_cap=1 adv_100hdx_cap=0 adv_10fdx_cap=0 adv_10hdx_cap=0;

In order to clarify point 1 above, if we wanted to force all six interfaces to operate at 1Gbit/s full duplex we would only need to place the following single line in the file.

adv_autoneg_cap=0 adv_1000fdx_cap=1 adv_1000hdx_cap=0 adv_100fdx_cap=0 adv_100hdx_cap=0 adv_10fdx_cap=0

To check the interface settings:

netstat -k ce0

To get the NIC's capabilities:

kstat -p ce:0::"/^cap_/"

To get advertised capabilities:

ndd -set /dev/ce instance
ndd -get /dev/ce adv_autoneg_cap
ndd -get /dev/ce \? | grep "adv_"

Parameter Name	Value	Meaning
adv_autoneg_cap	0	The interface has been forced directly into a particular operating mode without regard to auto-negotiation
	1	The interface is currently auto-negotiating
adv_1000fdx_cap	0	The interface is not capable of operating at 1000 Mbit/s full duplex
	1	The interface is capable of operating at 1000 Mbit/s full duplex
adv_1000hdx_cap	0	The interface is not capable of operating at 1000 Mbit/s half duplex
	1	The interface is capable of operating at 1000 Mbit/s half duplex
adv_100fdx_cap	0	The interface is not capable of operating at 100 Mbit/s full duplex
	1	The interface is capable of operating at 100 Mbit/s full duplex
adv_100hdx_cap	0	The interface is not capable of operating at 100 Mbit/s half duplex
	1	The interface is capable of operating at 100 Mbit/s half duplex
adv_10fdx_cap	0	The interface is not capable of operating at 10 Mbit/s full duplex
	1	The interface is capable of operating at 10 Mbit/s full duplex
adv_10hdx_cap	0	The interface is not capable of operating at 10 Mbit/s half duplex
	1	The interface is capable of operating at 10 Mbit/s half duplex

To get the actual link mode:

kstat -p ce:0::"/^link_/"

Parameter Name	Value	Meaning
link_up	0	The link is down
	1	The link is up
link_speed	1000	The link is operating at 1000 Mbit/s
	100	The link is operating at 100 Mbit/s
	10	The link is operating at 10 Mbit/s
link_duplex	0	The link is down
	1	The link is operating in half duplex mode
	2	The link is operating in full duplex mode

To get the link partner capabilities:

kstat -p ce:0::"/^lp_cap_/"

Parameter Name	Vlaue	Meaning< /b>
lp_cap_autoneg	0	The link partner operational parameters have been forced or the link partner simply does not support auto-negotiation
	1	Auto-negotiation information has been received from the link partner
lp_cap_1000fdx	0	The link partner appears to be incapable of operating at 1000 Mbit/s full duplex
	1	The link partner is capable of operating at 1000 Mbit/s full duplex
lp_cap_1000hdx	0	The link partner appears to be incapable of operating at 1000 Mbit/s half duplex
	1	The link partner is capable of operating at 1000 Mbit/s half duplex
lp_cap_100fdx	0	The link partner appears to be incapable of operating at 100 Mbit/s full duplex
	1	The link partner is capable of operating at 100 Mbit/s full duplex
lp_cap_100hdx	0	The link partner appears to be incapable of operating at 100 Mbit/s half duplex
	1	The link partner is capable of operating at 100 Mbit/s half duplex
lp_cap_10fdx	0	The link partner appears to be incapable of operating at 10 Mbit/s full duplex
	1	The link partner is capable of operating at 10 Mbit/s full duplex
lp_cap_10hdx	0	The link partner appears to be incapable of operating at 10 Mbit/s half duplex
	1	The link partner is capable of operating at 10 Mbit/s half duplex

Methods to determine link status of ethernet interfaces

- check /var/adm/messages (including when IPMP is used)

---------------------

checking link status with ndd

# ndd -set /dev/qfe instance 0 (instance set to "0" checks qfe0 status; "1" for qfe1,etc...)
# ndd   /dev/qfe link_status
  1
  ( 1 -up, 0 = down )                                                

--------------------

Checking link status for Gigaswift Ethernet(ce) is different from other Ethernet interfaces.   netstat
-k is used:

netstat -k ce0

link_up (1=up,0=down)                                                                                            

-------------

checking with kstat (netstat -k)

# kstat qfe:0::link_up
module: qfe                                                         instance: 0
name:     qfe0                                                       class:       net
                  link_up                                                 1

# kstat eri |grep link_up
link_up                                                 1

# netstat -k qfe0 |grep link_up
  ......   link_up 1                                                                                                

-------------

examining LED states

newer network interface adapters have light indicators.

on "qfe" quad fast ethernet and "ge" Sun Gigabit Ethernet 2.0 adapters

     LED           Status                 Description
--------------------------------------------------------------
LINK         Off                       Port not connected or Link partner down
                  Green Steady     Link detected & active                                                                                              

on "ce" Gigaswift:
  --------------------------------------------------------------
LINK QUALITY   Purple     Gigabit link quality good
  PHY 1000X       Green         Link 1Gbit/s up
  PHY 100X         Green         Link 100Mbit/s up
  PHY 10X           Green         Link 10Mbit/s up                                                                                              

-------------

checking with SNMP ( requires snmp Software)
./snmpwalk netlab11 public interfaces.ifTable

...
interfaces.ifTable.ifEntry.ifDescr.1 = lo0
interfaces.ifTable.ifEntry.ifDescr.2 = ce3
interfaces.ifTable.ifEntry.ifDescr.3 = hme0
interfaces.ifTable.ifEntry.ifDescr.4 = qfe0
...
interfaces.ifTable.ifEntry.ifOperStatus.1 = up(1)
interfaces.ifTable.ifEntry.ifOperStatus.2 = up(1)
interfaces.ifTable.ifEntry.ifOperStatus.3 = up(1)
interfaces.ifTable.ifEntry.ifOperStatus.4 = down(2)

Ethernet auto-negotiation

Use the following commands to check that the link partner (switch / link / router) has auto-negotiation capability enabled.

for ge   # ndd /dev/ge lp_1000autoneg_cap
for hme  # ndd /dev/hme lp_autoneg_cap
for qfe  # ndd /dev/qfe lp_autoneg_cap
for eri  # ndd /dev/eri lp_autoneg_cap
for ce   # kstat ce:::lp_cap_autoneg
for dmfe # ndd /dev/dmfe0 lp_autoneg_cap

If the lp_autoneg_cap is 0 (ie, auto-negotiate is disabled on the link partner), action should be taken to either enable autoneg_cap on the link partner, or disable autoneg_cap on the host.

Note: the kstat command is only available in Solaris 8 and later. For previous releases the information is included in the "netstat -k" command (see the ce relevant section there).

Xclock ca resursa failover in SUN cluster

Asta e raspunsul pe care l-am dat unuia pe sunmanagers pentru a seta Xclock ca resursa in SUN cluster .... si cica i-a mers :-)

On any of the two nodes:

first you need to create the resorce type
the command to do this should look smth like this:

scdscreate -k -V SUN -T XCLOCK

Then you should create the resource package
the command to do this should look smth like this:

scdsconfig -s "/path_to_application_start_script" /
-t "/path_to_application_stop_script" /
-m "/path_to_application_monitor_script"
It's a goo idea to keep the rtconfig file (mv rtconfig SUNXCLOCK/ )
Now in SUNXCLOCK/pkg you should have got
a package for your resource

Install the obtained package on both nodes !!

pkgadd -d name_of_the_package

Register the resource in the cluster (to be done on only one node)

scrgadm -a -t SUN.XCLOCK

Create the resource group and then the resorce itself in the cluster (to be done on only one node):

scrgadm -a -g resorce-group-name

scrgadm -a -j resource-name -g resource-group-name -t SUN.XCLOCK

Activate the resource

scswitch -e -j resource-name

Good luck !!

SSH pe Solaris 6

# Se instaleaza openssl, openssh, zlib,libgcc, prngd
mkdir /var/empty
chown root:sys /var/empty
chmod 755 /var/empty
groupadd sshd
useradd -g sshd -c 'sshd privsep' -d /var/empty -s /bin/false sshd
cat /var/log/* > /etc/prngd-seed
/usr/local/sbin/prngd /var/run/egd-pool
ssh-keygen -t rsa1 -f /usr/local/etc/ssh_host_key -N ""
ssh-keygen -t rsa1 -f /usr/local/etc/ssh_host_key -N ""
ssh-keygen -t dsa -f /usr/local/etc/ssh_host_dsa_key -N ""
ssh-keygen -t rsa -f /usr/local/etc/ssh_host_rsa_key -N ""
ln -s /etc/init.d/sshd /etc/rc2.d/S98sshd
ln -s /etc/init.d/prngd /etc/rc2.d/S97sshd
chmod ug+x /etc/init.d/sshd
chown root /etc/init.d/sshd
chgrp sys /etc/init.d/sshd
/etc/init.d/sshd start

# /etc/init.d/sshd contine:
#!/bin/sh

pid=`/usr/bin/ps -e | /usr/bin/grep sshd | /usr/bin/sed -e 's/^ *//' -e 's/ .*//'`
case $1 in
'start')
/usr/local/sbin/sshd
;;
'stop')
if [ "${pid}" != "" ]
then
/usr/bin/kill ${pid}
fi
;;
*)
echo "usage: /etc/init.d/sshd {start|stop}"
;;
esac

############################################

# /etc/init.d/prngd contine:
#!/bin/sh

pid=`/usr/bin/ps -e | /usr/bin/grep prngd | /usr/bin/sed -e 's/^ *//' -e 's/ .*//'`
case $1 in
'start')
/usr/local/sbin/prngd /var/spool/prngd/pool
;;
'stop')
if [ "${pid}" != "" ]
then
/usr/bin/kill ${pid}
fi
;;
*)
echo "usage: /etc/init.d/prngd {start|stop}"
;;
esac

Vxvm 35 upgrade (SUN cluster)

init 0
boot -sx

/etc/init.d/volmgt start
volcheck
/cdrom/volume_manager/scripts/upgrade_start -check
/cdrom/volume_manager/scripts/upgrade_start
init 0
boot -sx

pkgrm VRTSvmsa VRTSvmdoc VRTSvmdev VRTSvmman VRTSvxvm VRTSvxfs
init 0
boot -sx

/etc/init.d/volmgt start
volcheck
cd /cdrom/volume_manager/pkgs
pkgadd -d . VRTSvlic
pkgadd -d . VRTSvxvm
../scripts/upgrade_finish
init 0
boot -rx

volcheck
cd /cdrom/volume_manager/pkgs
pkgadd -d . VRTSvmman
pkgadd -d . VRTSvxfs

Veritas cluster stuff

# Status resurse / grupuri in cluster
hastatus -sum |less
# Ca sa pot pune resursa online dupa ce resursa a fost marcata ca faulted pe ambele noduri:
hares -clear java_app -sys napoli
hares -clear java_app -sys roma
# O pun online pe napoli:
hagrp -online sg_app -sys napoli
# O pun in freeze (adika resursa este monitorizata dar nu mai face failover in caz ca este oprita manual)
hagrp -freeze sg_app
# Verific status-ul resurselor
hastatus -sum |less
# Mutare o resursa de pa o masina pe alta
hareg -switch nume-grup-resursa -to nume_server

# Creare grup de rersurse
hagrp -add oracle-sg
hagrp -modify oracle-sg SystemList chip 0 dale 1
hagrp -modify oracle-sg AutoStartList dale
hagrp -modify oracle-sg Parallel 0
# CReare resurse in grup
hares -add ora-lsnr IP oracle-sg
hares -modify ora-lsnr Critical 1
hares -modify ora-lsnr ArpDelay 1
hares -modify ora-lsnr IfconfigTwice 0
hares -modify ora-lsnr Device
hares -modify ora-lsnr Address 10.233.184.8

# Creare disk heartbeat (pe fiecare nod pentru disk-ul respectiv)
Pe chip:
astea 2 comenzi doar pe un nod !!!
gabdiskconf -i /dev/dsk/c4t0d0s2 -s 512 -S AABB
gabdiskconf -i /dev/dsk/c4t0d0s2 -s 1024 -S BBAA
asta 2 pe fiecare din noduri !!
/sbin/gabdiskhb -a /dev/dsk/c4t0d0s2 -p a -s 512
/sbin/gabdiskhb -d /dev/dsk/c4t0d0s2 -p h -s 1024

root@chip # cat /etc/gabtab
/sbin/gabconfig -c -n2
/sbin/gabdiskhb -a /dev/dsk/c4t0d0s2 -p a -s 512
/sbin/gabdiskhb -a /dev/dsk/c4t0d0s2 -p h -s 1024

Pe dale:
/sbin/gabdiskhb -a /dev/dsk/c3t0d0s2 -p a -s 512
/sbin/gabdiskhb -a /dev/dsk/c3t0d0s2 -p h -s 1024
gabdiskhb -l (ca sa verific ca merge treaba)

root@dale # cat /etc/gabtab
/sbin/gabconfig -c -n2
/sbin/gabdiskhb -a /dev/dsk/c3t0d0s2 -p a -s 512
/sbin/gabdiskhb -a /dev/dsk/c3t0d0s2 -p h -s 1024


#As the /etc/llttab is read during LLT intialization any changes will become effective
# only after the following steps (exectute step 1 on one node, execute steps 2-6 on all nodes):

1. hastop -all -force
2. gabconfig -U
3. lltconfig -U
4. lltconfig -c
5. /usr/bin/sh /etc/gabtab
6. hastart

Symcli stuff

## Split / establish pe fiecare device in parte

symmir -g the-group split DEV001
symmir -g the-group split DEV002
symmir -g the-group query >/tmp/PPCREP
symmir -g the-group split DEV003
symmir -g the-group split DEV004
symmir -g the-group split DEV005
symmir -g the-group split DEV006
symmir -g the-group query
symmir -g the-group split DEV005
symmir -g the-group establish DEV005
symmir -g the-group query
symmir -g the-group split DEV005
symmir -g the-group establish # pentru tot grupul

# ca sa vad device-urile mapate pe un anumit port din DMX
symdev -sid 123 -SA 7b -p 1 list
# ca sa vdd pe ce lun este mapat deviceul 0313
symdev show 0313
# ca sa vad wwn -ul unui port din DMX
symcfg -sid 123 -v -SA 10b list
# ca sa vad device-urle maskate pe un wwn
symmaskdb -sid 123 -wwn 10000000C94A7638 list devs
# ca sa vad catre ce wwn este asignat un device
symmaskdb -sid 123 -dev 24b list assig
# ca sa vad lock-urile de pe symetrix
symcfg -lockn all list
symcfg -sid 123 -force -lockn 15 release
# ca sa vad device-urile date pe un port

# Creare manuala de grup de BCV
symdg -type RDF1 create MEDI_DMX
symld -sid 123 -g MEDI_DMX add dev 8D5
symld -sid 123 -g MEDI_DMX add dev 8D9
symbcv -sid 123 -g MEDI_DMX associate dev 8E5
symbcv -sid 123 -g MEDI_DMX associate dev 8E9
symdg list
symmir -g MEDI_DMX query

# aflu grupurile de srdf de pe un sid
symcfg -sid 123 -rdfg all list

# creare meta-uri
symconfigure -sid 123 -f /tmp/map_e10kp1 preview
496 symconfigure -sid 123 -f /tmp/map_e10kp1 commit
#mapare deviceri (meta-uri)
symmask -sid 186 -wwn 10000000c934aaab -dir 10b -p 0 add devs 992,996,99A,99E,9A2,9A6,9AA,9AE,9B2,9B6,9BA,9BE,9C2,9C6,9CA,9CE,9D2,9D6,9DA

# rupere legaturi SRDF
symrdf -g RETAIL-SRDF -force deletepair
symdg -force delete RETAIL-SRDF