Skip to main content
Start a Conversation

Unsolved

This post is more than 5 years old

SuperJan

11 Posts

1469

April 10th, 2008 07:00

Procedure for replacing 4 switches

Hello

We currently have 2 fabrics, each one consists of two 32 port and two 16 port Brocade switches. We want to replace the 16 port core switches with new 32 port Brocade 5000 switches.

Does anyone have or can show me where I can find documentation which shows the correct procedure for replacing the switches?

I just don't want to miss a step and mess things up.

Thanks

dynamox

11 Legend

 • 

20.4K Posts

 • 

87.4K Points

April 15th, 2008 06:00

but he is moving arrays from old cores to new cores right ?

RRR

6 Operator

 • 

5.7K Posts

April 15th, 2008 06:00

I think we need a 2nd oppinion about this. I'm not sure at all about this...

SKT2

2 Intern

 • 

1.3K Posts

April 15th, 2008 11:00

"so when you re-created new device with major/minor numbers of the old ctd device ..did you do it on the fly , without taking the cluster down"

yes, it is done line (it is just the mknod command) . In our case also it was a switch migration.

Kiran3

410 Posts

April 15th, 2008 23:00

The FCID doesn't change if I'm correct

it will if the ports are changed on same switch also

xe2sdc

6 Operator

 • 

2.8K Posts

April 25th, 2008 01:00

HPUX LVM trusts /etc/lvmtab .. that contains CTD .. If CTD changes, /etc/lvmtab still points to old CTD and new CTD will never be recognized as being part of your existing VGs. ..

If you planned the overall process you can vgreduce the vgs before moving the switches around and ioscan/insf/vgextend them when you reached final configuration ..

If you plannned the overall proces but don't want to reduce your paths you can export and import the VGs.

If you didn't plan the process and your fabrics changed somehow, you have a VG with a single leg. Now you can only work on the ioconfig (as per my previous suggestions) ..

Cheers :D

SKT2

2 Intern

 • 

1.3K Posts

April 25th, 2008 11:00

you can regenerate the /etc/lvmtab(keep a backup) with vgscan which will pick up the new paths/legs.

xe2sdc

6 Operator

 • 

2.8K Posts

April 26th, 2008 21:00

Santhosh you are right, vgscan is always an option. However I had problems in the past so I prefer to avoid it .. YMMV :D

Was this post helpful?

View All

No Events found!

Top