[Lustre-discuss] Renaming an OSS

[Lundgren, Andrew]

I did changed just the hostname on two last week with no issues.  My IPs also remained the same, just a DNS update.



From: Bob Ball [mailto:ball at umich.edu]
Sent: Monday, December 13, 2010 3:02 PM
To: Wojciech Turek
Cc: Lundgren, Andrew; Lustre discussion
Subject: Re: [Lustre-discuss] Renaming an OSS

Not using heartbeat (Lustre 1.8.4 manual section 8.3?).  As we've added OSS, we've never explicitly placed the machine names in any configuration.

Furthermore, no IP changes will be made, just the DNS name, so perhaps we are safe after all?

bob

On 12/13/2010 4:48 PM, Wojciech Turek wrote:
I think that Andreas got confused and thought that you want rename OST.

Renaming OSS is easy and don't require any Lustre reconfiguration if your Lustre configuration is based on IP addresses and not hostnames.

If you have heartbeat, you need to change names in configuration

Best regards,

Wojciech

On 13 December 2010 21:34, Bob Ball <ball at umich.edu<mailto:ball at umich.edu>> wrote:
Yes, just the DNS name.  From Andreas' response, it would seem this is
not something I want to do.

bob

On 12/13/2010 4:11 PM, Lundgren, Andrew wrote:
> Are you talking about renaming the DNS name of the host machine, or something else?
>
> -----Original Message-----
> From: lustre-discuss-bounces at lists.lustre.org<mailto:lustre-discuss-bounces at lists.lustre.org> [mailto:lustre-discuss-bounces at lists.lustre.org<mailto:lustre-discuss-bounces at lists.lustre.org>] On Behalf Of Bob Ball
> Sent: Monday, December 13, 2010 1:49 PM
> To: Lustre discussion
> Subject: [Lustre-discuss] Renaming an OSS
>
> For administrative reasons, we want to rename an OSS.  It will retain
> the same IP addresses, and have the same OST.  Does this present any
> problems that I should be aware of, or is it a no-brainer?
>
> Thanks,
> bob
>
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--
Wojciech Turek

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