06-26-2008
hacmp ip load balancer failover
Hi All,
How do I failover on the ip load balancer (back and forth)? It involves first to load a new config on the passive ip. If success, load the new config on the ip active (which is now passive).
Any idea, please.
Thanks in advance.
9 More Discussions You Might Find Interesting
1. Programming
Halo mates,
I m going to write a load balancer with C. Does anybody know some good reference on this?
Cheers,
Elton (5 Replies)
Discussion started by: EltonSky
5 Replies
2. AIX
Hello All,
Here is a snipet from our cluster.log, I was wondering if anyone could shed some light on what may have caused the failover.
The first two lines indicate a possible memory issue which I am currently looking into.
Thanks. (0 Replies)
Discussion started by: Wez
0 Replies
3. AIX
Hi All,
How do I trigger the failover on the second hacmp server?
Please give me idea and I will do the rest.
Thanks,
itik (2 Replies)
Discussion started by: itik
2 Replies
4. Red Hat
Hi,
What's the best load balancer for Linux (CentOS, SuSE) according to your personal experience?
Linux Virtual Server (LVS) is a famous one, but their download site has not been updated since 2007. Their web and mailing list are so quiet. Is the Ultra Monkey project including LVS... (1 Reply)
Discussion started by: aixlover
1 Replies
5. AIX
hi,
when I do a failover, hacmp always starts db2 but recently it fails to start db2..noticed the issue is db2nodes.cfg is not modified by hacmp and is still showing primary node..manually changed the node name to secondary after which db2 started immediately..unable to figure out why hacmp is... (4 Replies)
Discussion started by: gkr747
4 Replies
6. UNIX for Advanced & Expert Users
we use piranha load balancer with two nodes
even the primary node is running fine and up failover happend to secondary node
this happend quite few times ehy node2 cannot talk to node1
what logs are to be checked and investigate why failover occured
pulse: partner dead: activating... (0 Replies)
Discussion started by: robo
0 Replies
7. AIX
Would anyone please kindly help to solve this problem...
An LPAR with the below network configuration. ent0 and ent1 are logical lan (virtual ethernet) from VIO SEA.
en0
1.2.3.4 <- boot ip
192.168.1.1 <- persistent ip
192.168.1.10 <- service ip
en1
11.22.33.44 <- boot ip
When I... (6 Replies)
Discussion started by: skeyeung
6 Replies
8. Linux
Hello Guys,
Hope you all doing well . :)
I was checking load balance command (uptime)on VM server and got below output.
# uptime
07:08:40 up 52 min, 2 users,a load average: 0.45, 0.11, 0.03
A :How we can calculate load average?
Thank you in advance !!
Cheers:)
Dont forget... (1 Reply)
Discussion started by: Nats
1 Replies
9. Virtualization and Cloud Computing
Hello,
in case somebody has a NoMachine NX cluster, and is suffering from its dumb round-robin dispatcher, here is a solution:
nxpub (NX Pluggable User Balancer).
It should run on all LUnix OS. Scripts for install/uninstall are supplied.
While tested with NX 3 (NX 3.5 is the latest), it might... (2 Replies)
Discussion started by: MadeInGermany
2 Replies
LEARN ABOUT REDHAT
amtape
AMTAPE(8) System Manager's Manual AMTAPE(8)
NAME
amtape - user interface to Amanda tape changer controls
SYNOPSIS
amtape config command [ command options ]
DESCRIPTION
Amtape performs tape changer control operations. It uses the underlying tape changer script defined by the tpchanger option for a particu-
lar Amanda configuration as specified by the config argument.
Tape changers maintain a notion of the current and next slot for each configuration. These may or may not correspond to an actual physical
state of the device, but do tend to minimize searching through the tape storage slots. If the desired tape is in the current slot, it is
likely the next tape needed is in the next slot rather than at some random position in the storage slots.
See the amanda(8) man page for more details about Amanda.
COMMANDS
reset Reset the tape changer to a known state. The current slot is set to the first slot. Other device-specific side effects may occur.
Some gravity stackers need to be reset to the top position by hand. This command notifies Amanda the stacker is back in that posi-
tion.
eject If a tape is loaded in the drive, it is ejected and returned to the slot from which it was loaded.
clean If a cleaning tape is defined for the changer, it is used to clean the drive.
show Show the contents of all slots. This can be slow.
label label
Search for and load the Amanda tape with label label.
taper Perform the taper scan algorithm. Load the next tape in the configuration's tape sequence, or a fresh tape with a suitable label.
device Display the name of the current tape device on stdout.
current
Display the current slot.
update Update the changer label database, if it has one, to match the tapes now available.
slot slot
Eject any tape in the drive and put it away, then load the tape from slot slot and reset current.
slot current
Eject any tape in the drive and put it away, then load the tape from the current slot.
slot prev
Eject any tape in the drive and put it away, then load the tape from the previous slot and reset current.
slot next
Eject any tape in the drive and put it away, then load the tape from the next slot and reset current.
slot first
Eject any tape in the drive and put it away, then load the tape from the first slot and reset current.
slot last
Eject any tape in the drive and put it away, then load the tape from the last slot and reset current.
slot advance
Eject any tape in the drive and put it away. Advance current to the next tape, but do not load it.
This is useful with non-gravity stackers to unload the last tape used and set up Amanda for the next run. If you just use eject,
the current tape will be mounted again in the next run, where it will be rejected as being still in use, ejected and the next tape
requested. Using slot next followed by eject does an unnecessary mount.
Note: most changers optimize the slot commands to not eject the loaded tape if it is the one being requested.
AUTHOR
James da Silva <jds@cs.umd.edu>
University of Maryland, College Park
SEE ALSO
amanda(8)
AMTAPE(8)