topic Re: server in Operating System - HP-UX

server

Anjaneyulu — Wed, 19 Nov 2008 10:00:06 GMT

Hi,

Iam unable to connect one of my HP-UX server.How can I findout the problem?

Re: server

Prasu — Wed, 19 Nov 2008 10:06:42 GMT

Check.

1. getting ping response ?
2. try to get console
3. what is the LED status on server panel ?
4. check the status of server ( is it powered off ?)

Regards
Prasu

Re: server

SKR_1 — Wed, 19 Nov 2008 10:08:08 GMT

Are you able to take the MP console?

If no...........then reboot it.

If yes.........then check for the files

/etc/rc.config.d/netconf file for the lan and default gateway IP. Also check /etc/hosts file

Thanks

SKR

Re: server

Johnson Punniyalingam — Wed, 19 Nov 2008 10:22:53 GMT

>> Iam unable to connect one of my HP-UX server.How can I findout the problem?>>

You are Just pushing us in dark-room .. :)

can please be specfic ..:)

what error you are getting while you getting to HPUX_Server

1. Can you ping HPUX_Server

2. Can you telnet,ssh,rlogin HPUX_Server ..?

3. can Check if there any outtage,

4. If you have access to Server-room can you try to login to Server Console, or remote Console

hope you understand,

Thanks,
Johnson

Re: server

Anjaneyulu — Wed, 19 Nov 2008 10:27:40 GMT

we dont have console. but my senior told me it is boot device error. boot the server with alternate boot.

At which situations we use the which type of boot. please send me if there is any material.

How can we find out which boot is the properly used for that situation?

How can we find out bootdisk?

Re: server

Johnson Punniyalingam — Wed, 19 Nov 2008 10:33:48 GMT

>>At which situations we use the which type of boot. please send me if there is any material.

How can we find out which boot is the properly used for that situation?

How can we find out bootdisk? >>

IF you cannot login using the server via, telnet, you need attach Console to the server and get the console access,

look into console message .? what does it say,

I hope with-out the Console you can't bring up the Server,

or

point the server to alternative_boot_disk

Example:-

ISL>bo alt --> this try boot the server using alternative disk if your primary boot disk bad

Once server comes up

# lvlmboot -v -> list what are the bootable disk

Thanks,
johnson

Re: server

Suraj K Sankari — Wed, 19 Nov 2008 10:49:51 GMT

Hi,

With out the console you can't select the alternate boot path.

If physically server is near by you the try to connect with MP Serial or Ethernet cable to connect the MP Console.

Suraj

Re: server

Anjaneyulu — Wed, 19 Nov 2008 11:22:23 GMT

hi suraj we find out the bootable path. I have already the path. i saved that path on 16th nov.

Now my dought is I want to learn the boot types.How can we findout the which type of boot is good.

If there is any document please send me

Re: server

SKR_1 — Wed, 19 Nov 2008 11:51:24 GMT

http://docs.hp.com/en/B2355-90950/ch05s01.html

http://docs.hp.com/en/AB587-96012/ch04s04.html

Thanks

SKR

Re: server

unixguy_1 — Wed, 19 Nov 2008 12:25:36 GMT

This is Unix guy,

are you getting any pinging response?

and Check,whether the server is powered ON or Not,

Regards,
Unixguy.

Re: server

Anjaneyulu — Wed, 19 Nov 2008 13:10:46 GMT

I tried to connect ping. It's not responding.

Re: server

cnb — Thu, 20 Nov 2008 00:48:10 GMT

Hi,

What is the model number of HP server you are trying to connect to? Please clarify.

Thanks,

Re: server

OldSchool — Thu, 20 Nov 2008 01:59:29 GMT

you need to clarify the problem..you just kee restating it.

right now you can't ping, telnet or whatever. we got that.

did the system crash and then not restart? was the system manually rebooted and failed?

the end result is you need either a MP console session (if available) or terminal connected direct to the console port.

from what your "senior" said, the primary boot disk had failure.

If it's mirrored (it is right?) and its done properly, you can boot from the mirror. the process is described above.

If it's not mirrored, you are looking at replacing the failed drive and installing the OS backup from an Ignite tape.

you might want to speak with your "senior" to determine what he/she wants done.

Barring that, you need to come up with a better discription of the issue.

At this point, you've not even said what state the system is in, only that you can't connect.

Re: server

Anjaneyulu — Thu, 20 Nov 2008 08:31:26 GMT

hi,

I asked my senior we don't have the console access. and mirrore disk also failed. So OS will install from another HP server.We don't have any OS backup's. Is the correct procedure to install the OS from another HP server.

Re: server

Johnson Punniyalingam — Thu, 20 Nov 2008 08:42:27 GMT

Hi,

>> I asked my senior we don't have the console access.
(fine_ now we need attach a cosole "or" do you have "Serial Console cable" so that you can attache your Laptop, ..?

and mirrore disk also failed

how do you know ..? how did you find out .?

you said you d'not have console acess ..?

did you try booting from your mirrore disk..?

. So OS will install from another HP server.
We don't have any OS backup's.

you mean are you going by Ignite by using "Ignire Server" or using the Ignite tape of a smilar HPUX Server ..?

Is the correct procedure to install the OS from another HP server.<<

basically this Question .?

which procedure are you going follow .?

either Ignite_Server / using Ignite tape .?

Thanks,
Johnson

Re: server

Anjaneyulu — Thu, 20 Nov 2008 10:07:58 GMT

Hi johnson ,

He told me there is no ignite tape. So in that server they install new version of HP. I want to know about first which type of backups we have. At what times we have to take the backups.

Re: server

Johnson Punniyalingam — Thu, 20 Nov 2008 10:22:35 GMT

He told me there is no ignite tape. So in that server they install new version of HP.

>> OK , No problem,

I want to know about first which type of backups we have...?

Basics

1. Always perform OS backup Once a Month which is technically called Ignite Backup (make_tape_recovery) --> command to use perform the OS backup using tape-drive
(make_net_recovery ) --> comand to use perform OS_backup to Ignite server

2. Other backups refering to which not part of root File system , Example like vg01
(Application data)

you use HP -data proctector , or you use tar,cpio,fbackup ,

schedule your backup and slective file system

At what times we have to take the backups.

when you doing any kernal paremeter changes, better you perform "Once a month" so that we can avoid these kind of Sudden System CRASH"

Thanks,
Johnson

Re: server

Anjaneyulu — Thu, 20 Nov 2008 10:31:46 GMT

Hi johnson,

When we take rootdisk backup. At which situations it's necessary. You mentioned you take the backup other than root. why?

What is the use of these backup?

Please explain?

Re: server

Johnson Punniyalingam — Thu, 20 Nov 2008 11:00:28 GMT

When we take rootdisk backup. At which situations it's necessary.

1. when you do any Kernal _paremeter Changes

(for me its not "situations" Once a month OS' backup is better that you recently OS -backp copies) could avoid any sudden crash we can still resote the OS using the most recent Backup.

You mentioned you take the backup other than root. why?

I mean apart from Root File system,

What is the use of these backup?

These use of backups use full when your Application data "crash" or you Application team "doing" any Application patching they may request you backup Application file system also

Example :-

/dev/vg01/lvol13 6291456 4685976 1592984 75% /UAT2/oradata

the above "File system belongs to oracle" which not part Root file system.

recently there was a Oracle patching,
my DBA requested to perfrom Backup of the Oracle File system ,

Hope this make you better Understand

Thanks,
Johnson

Re: server

Anjaneyulu — Thu, 20 Nov 2008 11:16:52 GMT

Hi johnson,

I understood. There is better to take OS backups monthly. and weekly we have to take all filesystems.

The OS backups where we store I mean in another server. somebody told me likethat. and filesystem backups we have to take in the tape or disk. what are the commands. we are using fbackup.