topic Re: shutdown and startup in Operating System - HP-UX

shutdown and startup

S.S. — Wed, 03 Mar 2010 08:22:51 GMT

Hi All,

Shortly, we have a UPS replacement due to that we need to shutdown and power-off all the servers.

We have the following:
HP-UX Servers
Linux Servers
EVA 8000

and other peripherals:
DDS Tape Drives on unix server
CD ROM Drives on unix/linux servers
Tape MSL Library.

Can someone help me the sequential procedure to follow the shutdown and power-off the above servers and also the start-up.
For power-off the server should need to physical go and have to turned off? Hope we can power-off the hpux servers by using MP console right?

Thank you.

Re: shutdown and startup

Sachin Kumbla — Wed, 03 Mar 2010 08:31:06 GMT

Hi

You cam follow this procedure.

Shutdown
1)shutdown the TL & standalone drives attached to it.
2)Shutdown the servers.
3)Shutdown the SAN.

Startup
1)Start the SAN.
2)start all the servers.
3)start the TL & standalone drives.

Take all the system config,data & ignite backup before the activity.

Rgds.,
Sachin Kumbla.

Re: shutdown and startup

Kapil Jha — Wed, 03 Mar 2010 08:32:52 GMT

i think go this way
HPUX and Linux servers
Storage
tape library

Disk would turn off after server I suppose.

remove power plug if needed in test

and bring them up in reverse order :)

BR,
Kapil+

Re: shutdown and startup

Horia Chirculescu — Wed, 03 Mar 2010 08:43:30 GMT

Hello S.S.,

1. You should first shutdown your critical applications. Use the application specific commands. You must wait for this process to end. (and this might take a while...)

If you have a cluster, stopping the cluster might shutdown the applications correctly.

2. You can shutdown the HP-UX servers by issuing

shutdown -h -y 0

h stands for Halt. After that you can power off the server (power off UPS)

3. Power off EVA by issuing the proper shutdown command from the controller(s). This will write the content of the cache on the physical HDDs installed on EVA.

Do not power off the server (even through MP) until you stop your application!

For the linux servers, it is important also to issue the shutdown command.
(shutdown -h now) See man shutdown for the actual command.

A word about shutdown order: if you have linux/HP-UX servers that presents NFS/samba volumes to other servers/clients, then you should first stop ALL those clients and in the end you should stop the NFS server.
Also, if you have EVA volumes presented to linux servers, you should take care of this issue in the same way (stop linux servers first then EVA)

Horia.

Re: shutdown and startup

S.S. — Mon, 15 Mar 2010 06:33:14 GMT

Hi,

After power-off the hp-ux servers should i need to plug-out the power cables also?

Thanks.

Re: shutdown and startup

DeafFrog — Mon, 15 Mar 2010 06:45:56 GMT

Hi ,

Don't think that you require to pull the power cable from the servers.Also , for complete power down the EVA , the order of shutdown should be san s/w , controllers , and disk array if you are completely powering off the EVA.

Regard,
FrogIsDeaf

Re: shutdown and startup

Kapil Jha — Mon, 15 Mar 2010 06:52:35 GMT

SS,
It depends upon the test, some customer do a full shutdown test where they remove the power cable as well and start from scratch.
so it really depends upon your need, i mean ur customer ;)

BR,
Kapil+

Re: shutdown and startup

Johnson Punniyalingam — Mon, 15 Mar 2010 07:39:09 GMT

I Do Agree with >>Kapil Jha

It depends what kind of "UPS maintance activity has been conducted,"

scenario 1:-

if total UPS power shut down, Yes need to unplug the power cables from "Server" hence we d'not want to give sudden "spic" to Server immediately once the power resumes.better ON the UPS once everything Green from UPS , Plug back the power cables to the server and than power ON server.

scenario 2:-
if its just "UPS Battery replacement activity we no needed to "un plug cables from the server"

Again its depends, as per your original post

>>Shortly, we have a UPS replacement due to that we need to shutdown and power-off all the servers.<<

Its better / safe to unplug cables from server, I would consider this total power shut down activity

Re: shutdown and startup

S.S. — Mon, 15 Mar 2010 08:24:31 GMT

Hi Kapil and Johnson,

After halting the server, can i power-off the machines by using the MP console?
or should i manually power-off the machine?

Thanks & Regards
Swetha

Re: shutdown and startup

Johnson Punniyalingam — Mon, 15 Mar 2010 08:52:15 GMT

>>can i power-off the machines by using the MP console?<<

Yes, by following as below, But why ? double work.?

# shutdown -hy 0

MP>PC

>>>or should i manually power-off the machine?<<

Yes,

make sure all Application & Database has gracefull shut down

# shutdown -hy 0

manually power off the machine.

Re: shutdown and startup

S.S. — Tue, 16 Mar 2010 02:32:20 GMT

Ok. I will manually power-off the machine after that will plug out the power cables also.

Any idea the exact shutdown command for the Linux Servers?

Thank you.

Re: shutdown and startup

Patrick Wallek — Tue, 16 Mar 2010 02:52:40 GMT

>>Any idea the exact shutdown command for the Linux Servers?

'shutdown' will work just like in HP-UX. Remember 'man' pages are your friend.

Re: shutdown and startup

Johnson Punniyalingam — Tue, 16 Mar 2010 02:55:16 GMT

>>Ok. I will manually power-off the machine after that will plug out the power cables also<<

http://www.linux.com/archive/articles/114003?tid

Re: shutdown and startup

Johnson Punniyalingam — Tue, 16 Mar 2010 02:57:58 GMT

shutdown -h now