Things not to do on an ILO

unless you need to take down the server in a hurry, do not choose the CTRL-ALT-DEL function button on the ilo

it will reboot the server

understanding the emc syminq command and what it tells you about devices

so here is a syminq command output

eudt0206:root / > ./var/tmp/SYMCLI.depot/SYMCLI/SYMCLI/SYMCLI/V6.4.0/bin/syminq

Device Product Device
---------------------------- --------------------------- ---------------------
Name Type Vendor ID Rev Ser Num Cap (KB)
---------------------------- --------------------------- ---------------------
/dev/rdsk/c0t0d0 COMPAQ BF1468A4CC HPB5 3KN2TWTK 143374744
/dev/rdsk/c0t0d0s1 COMPAQ BF1468A4CC HPB5 3KN2TWTK 143374744
/dev/rdsk/c0t0d0s2 COMPAQ BF1468A4CC HPB5 3KN2TWTK 143374744
/dev/rdsk/c0t0d0s3 COMPAQ BF1468A4CC HPB5 3KN2TWTK 143374744
/dev/rdsk/c0t1d0 COMPAQ BF1468A4CC HPB5 3KN2VX2A 143374744
/dev/rdsk/c2t0d0 COMPAQ BF1468A4CC HPB5 3KN2THV5 143374744
/dev/rdsk/c2t0d0s1 COMPAQ BF1468A4CC HPB5 3KN2THV5 143374744
/dev/rdsk/c2t0d0s2 COMPAQ BF1468A4CC HPB5 3KN2THV5 143374744
/dev/rdsk/c2t0d0s3 COMPAQ BF1468A4CC HPB5 3KN2THV5 143374744
/dev/rdsk/c2t1d0 COMPAQ BF1468A4CC HPB5 3KN2STSA 143374744
/dev/rdsk/c3t2d0 Optiarc DVD RW AD-5* 1.31 Nov20,2 N/A
/dev/rdsk/c4t0d0 GK EMC SYMMETRIX 5771 0400040000 2880
/dev/rdsk/c4t9d4 M(4) EMC SYMMETRIX 5771 040071D000 35692800
/dev/rdsk/c4t9d5 M(4) EMC SYMMETRIX 5771 0400721000 35692800
/dev/rdsk/c4t9d6 M(4) EMC SYMMETRIX 5771 0400725000 35692800
/dev/rdsk/c4t9d7 M(4) EMC SYMMETRIX 5771 0400729000 35692800
/dev/rdsk/c4t13d7 M(4) EMC SYMMETRIX 5771 040072D000 35692800
/dev/rdsk/c7t0d0 GK EMC SYMMETRIX 5771 0400040000 2880
/dev/rdsk/c7t9d4 M(4) EMC SYMMETRIX 5771 040071D000 35692800
/dev/rdsk/c7t9d5 M(4) EMC SYMMETRIX 5771 0400721000 35692800
/dev/rdsk/c7t9d6 M(4) EMC SYMMETRIX 5771 0400725000 35692800
/dev/rdsk/c7t9d7 M(4) EMC SYMMETRIX 5771 0400729000 35692800
/dev/rdsk/c7t13d7 M(4) EMC SYMMETRIX 5771 040072D000 35692800
/dev/vx/rdmp/c0t0d0s2 COMPAQ BF1468A4CC HPB5 3KN2TWTK 143374744
/dev/vx/rdmp/c0t1d0 COMPAQ BF1468A4CC HPB5 3KN2VX2A 143374744
/dev/vx/rdmp/c2t0d0s2 COMPAQ BF1468A4CC HPB5 3KN2THV5 143374744
/dev/vx/rdmp/c2t1d0 COMPAQ BF1468A4CC HPB5 3KN2STSA 143374744
/dev/vx/rdmp/c4t9d4 M(4) EMC SYMMETRIX 5771 040071D000 35692800
/dev/vx/rdmp/c4t9d5 M(4) EMC SYMMETRIX 5771 0400721000 35692800
/dev/vx/rdmp/c4t9d6 M(4) EMC SYMMETRIX 5771 0400725000 35692800
/dev/vx/rdmp/c4t9d7 M(4) EMC SYMMETRIX 5771 0400729000 35692800
/dev/vx/rdmp/c4t13d7 M(4) EMC SYMMETRIX 5771 040072D000 35692800

let us break it down further - here we have a total of 5 EMC symmetrix disks, with multipathing;

/dev/rdsk/c4t0d0 GK EMC SYMMETRIX 5771 0400040000 2880
/dev/rdsk/c4t9d4 M(4) EMC SYMMETRIX 5771 040071D000 35692800
/dev/rdsk/c4t9d5 M(4) EMC SYMMETRIX 5771 0400721000 35692800
/dev/rdsk/c4t9d6 M(4) EMC SYMMETRIX 5771 0400725000 35692800
/dev/rdsk/c4t9d7 M(4) EMC SYMMETRIX 5771 0400729000 35692800
/dev/rdsk/c4t13d7 M(4) EMC SYMMETRIX 5771 040072D000 35692800
/dev/rdsk/c7t0d0 GK EMC SYMMETRIX 5771 0400040000 2880
/dev/rdsk/c7t9d4 M(4) EMC SYMMETRIX 5771 040071D000 35692800
/dev/rdsk/c7t9d5 M(4) EMC SYMMETRIX 5771 0400721000 35692800
/dev/rdsk/c7t9d6 M(4) EMC SYMMETRIX 5771 0400725000 35692800
/dev/rdsk/c7t9d7 M(4) EMC SYMMETRIX 5771 0400729000 35692800
/dev/rdsk/c7t13d7 M(4) EMC SYMMETRIX 5771 040072D000 35692800

that are also being used under vxvm;

/dev/vx/rdmp/c4t9d4 M(4) EMC SYMMETRIX 5771 040071D000 35692800
/dev/vx/rdmp/c4t9d5 M(4) EMC SYMMETRIX 5771 0400721000 35692800
/dev/vx/rdmp/c4t9d6 M(4) EMC SYMMETRIX 5771 0400725000 35692800
/dev/vx/rdmp/c4t9d7 M(4) EMC SYMMETRIX 5771 0400729000 35692800
/dev/vx/rdmp/c4t13d7 M(4) EMC SYMMETRIX 5771 040072D000 35692800

to find out the device ID, look at the 6th column;

/dev/vx/rdmp/c4t9d4 M(4) EMC SYMMETRIX 5771 040071D000 35692800

040071D000 breaks down as
04 are the last 2 digits of the serial number of the Symmetrix array/frame
0071D is the Symmetrix device ID number
000 is always 000 and doesn't have meaning

Also - GK stands for Gatekeeper devices, and the M stands for Mirror (with the 4 indicating that it is a 4 way mirror)

VxVm - Show total used or occupied disk space in a particular disk group

Show total used or occupied disk space in a particular disk group.

Since the basic unit of allocation is the subdisk, use vxprint and total up
all the subdisks length for a particular diskgroup i.e

vxprint -g diskgroup_name -s

vxdg free

The Veritas volume manager (VxVM) provides logical volume management capabilites across a variety of platforms. As you create new volumes, it is often helpful to know how much free space is available. You can find free space using two methods. The first method utilizes vxdg’s “free” option:

$ vxdg -g oradg free

GROUP DISK DEVICE TAG OFFSET LENGTH FLAGS
oradg c3t20d1 c3t20d1s2 c3t20d1 104848640 1536 -
oradg c3t20d3 c3t20d3s2 c3t20d3 104848640 1536 -
oradg c3t20d5 c3t20d5s2 c3t20d5 104848640 1536 -
oradg c3t20d7 c3t20d7s2 c3t20d7 104848640 1536 -
oradg c3t20d9 c3t20d9s2 c3t20d9 104848640 1536 -

The “LENGTH” column displays the number of 512-byte blocks available on each disk drive in the disk group “oradg.”. To calculate the size of a volume, use vxprint, and look for the "length". The volume length is in sectors. Convert to kilobytes
by dividing by 2. To find out the free - look at the offset column.

sftp logging on linux

try
/var/log/secure
or
/var/log/auth.log

Linux printing

Setting up network printers in linux


Make sure the printer name resolves (use nslookup and also do a ping test) – if that is the case you can assume that the initial printer config has been set up and the printer is on the network (ie the initial jetadmin setup)

Confirm that there is /etc/printcap present

Su to root

Run the following;

redhat-config-printer

or

system-config-printer

you get this GUI






you can then send a test print and then you can run an

lpq

to confirm that the queue is active

also do a ps –ef | grep cupsd

If you get a VCS service group offline and faulted

Got an issue where the hastatus summary showed the diskgroup as offline failed;



-- SYSTEM STATE

-- System State Frozen



A eupr0001 RUNNING 0

A eupr0002 RUNNING 0



-- GROUP STATE

-- Group System Probed AutoDisabled State



B commonsg eupr0001 Y N ONLINE

B commonsg eupr0002 Y N ONLINE

B nsr01_sg eupr0001 Y N OFFLINE|FAULTED

B nsr01_sg eupr0002 Y N ONLINE



-- RESOURCES FAILED

-- Group Type Resource System



C nsr01_sg Application NetWorker eup


so tried the following;

hares -display
For each resource that is faulted run:

hares -clear resource-name -sys faulted-system

so in this case

hares -clear NetWorker -sys eupr0001

If all of these clear, then run hastatus -summary and make sure that these are clear. You should then see the FAULTED removed, and just be left with the ONLINE status

-------------------------------------------------------------------------
nsr01_proxy eupr0001 ONLINE
nsr01_proxy eupr0002 ONLINE
^Ceupr0001> hastatus -sum

-- SYSTEM STATE
-- System State Frozen

A eupr0001 RUNNING 0
A eupr0002 RUNNING 0

-- GROUP STATE
-- Group System Probed AutoDisabled State

B commonsg eupr0001 Y N ONLINE
B commonsg eupr0002 Y N ONLINE
B nsr01_sg eupr0001 Y N OFFLINE
B nsr01_sg eupr0002 Y N ONLINE
eupr0001>

If some don't clear you MAY be able to clear them on the group level. Only do this as last resort:

hagrp -disableresources groupname
hagrp -flush group -sys sysname
hagrp -enableresources groupname

To get a group to go online:

hagrp -online group -sys desired-system

However, if this was not the issue (because despite doing flushes, clears and onlines, vcs was stating there was not a problem) - it could be something else, like licenses - I did an nsrwatch on the server and could see an issue with networker licenses;

Server: ukprbklas001-mn.emea.abnamro-net.com Wed May 20 19:34:30 2009

Up since: Mon Jul 7 18:43:09 2008 Version: NetWorker nw_7_3_2_jumbo.Build.394 Base enabler disabled
Saves: 0 session(s) Recovers: 0 session(s)
Device type volume
/tmp/fd1 adv_file D.001
1/_AF_readonly adv_file D.001.RO read only
/tmp/fd2 adv_file W.001
2/_AF_readonly adv_file W.001.RO read only
/tmp/fd3 adv_file ukprbklas001.001
3/_AF_readonly adv_file ukprbklas001.001.RO read only



Sessions:











Messages:
Sat 00:13:00 registration info event: Server is disabled: Install base enabler
Sun 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Sun 00:13:00 registration info event: Server is disabled: Install base enabler
Mon 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Mon 00:13:00 registration info event: Server is disabled: Install base enabler
Tue 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Tue 00:13:00 registration info event: Server is disabled: Install base enabler
Wed 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Wed 00:13:00 registration info event: Server is disabled: Install base enabler
Thu 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Thu 00:13:00 registration info event: Server is disabled: Install base enabler
Fri 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Fri 00:13:00 registration info event: Server is disabled: Install base enabler
Sat 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Sat 00:13:00 registration info event: Server is disabled: Install base enabler
Sun 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Sun 00:13:00 registration info event: Server is disabled: Install base enabler
Mon 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Mon 00:13:00 registration info event: Server is disabled: Install base enabler
Tue 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Tue 00:13:00 registration info event: Server is disabled: Install base enabler
Wed 00:13:00 registration info: License enabler #none (NetWorker/10 Eval) has expired.
Wed 00:13:00 registration info event: Server is disabled: Install base enabler

Pending:
Mon 18:43:08 registration info: Server is disabled: Install base enabler