[Driftstörning] Re: [Driftstörning] Re: [Driftstörning] Network maintenance on February 9th, starting at 17:00.

[Göran Bengtson]

On Mon, 1 Feb 2016, Göran Bengtson wrote:

> From: Göran Bengtson <goeran at chalmers.se>
> To: driftstorning at lists.chalmers.se
> Message-ID: <alpine.LRH.2.03.1602011258240.14186 at cdg.chalmers.se>
> Date: Mon, 1 Feb 2016 12:59:43 +0100
> Subject: [Driftstörning] Re: [Driftstörning]  Network maintenance on February
>     9th, starting at 17:00.
> 
> On Wed, 27 Jan 2016, Göran Bengtson wrote:
>
>> From: Göran Bengtson <goeran at chalmers.se>
>> To: driftstorning at lists.chalmers.se
>> Message-ID: <alpine.LRH.2.03.1601270826220.31598 at cdg.chalmers.se>
>> Date: Wed, 27 Jan 2016 15:51:52 +0100
>> Subject: [Driftstörning]  Network maintenance on February 9th,
>>     starting at 17:00.
>> 
>> We must upgrade the software in the routers in the computer center. This
>> work is planned for February 9th, starting at 17:00. It may take up
>> to 1 hour.
>
> This maintenance is postponed until February 16th, starting at 17:00.

This maintenance is now completed.

Unfortunately we run into problems that cased network and service
downtime.

>
>> 
>> The routers are redundant and the upgrade will, if all work as expected,
>> not cause any major service impact. However, in case of major problem,
>> most central services (network, as well as other) are at risk.
>> 
>> Four single-attached connections/services/systems WILL loss connectivity 
>> (in the order of 5 to 10 minutes).
>> They are the c3se system amy.c3se.chalmers.se and three IT Services systems
>> (isis.ita.chalmers.se - the old backup server), ewing.ita.chalmers.se and
>> sccm01.ita.chalmers.se - installation servers).
>>
>> 			/ Göran Bengtson
>> 			  IT Services Infrastructure

  			/ Göran Bengtson
  			  IT Services Infrastructure
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