[IPv6crawler-wg] Fwd: Re: Power Outage affecting you servers - 29th-31st March
Olivier MJ Crepin-Leblond
ocl at gih.com
Thu Mar 31 15:18:35 BST 2016
FYI -- both servers have rebooted perfectly well after their first 48H
beak in 590 days!
reboot system boot 2.6.18-406.el5PA Thu Mar 31 07:50 (07:11)
reboot system boot 2.6.18-371.9.1.e Sun Aug 17 10:12 (590+05:43)
Kindest regards,
Olivier
-------- Forwarded Message --------
Subject: Re: Power Outage affecting you servers - 29th-31st March
Date: Thu, 31 Mar 2016 16:13:41 +0200
From: Olivier MJ Crepin-Leblond <ocl at gih.com>
To: Metcalf C. (iSolutions) <C.Metcalf at soton.ac.uk>, Tim Chown
<tjc at ecs.soton.ac.uk>, Lance Draper <ld at ecs.soton.ac.uk>
CC: Newman David <drn at ecs.soton.ac.uk>, Webb J.P.
<j.p.webb at soton.ac.uk>, Olivier MJ Crepin-Leblond <ocl at gih.com>
Dear Chrissie,
thank you for your kind note. I have given the two machines a full
health check and it looks like they've rebooted well and are operating
normally.
I do however note one small glitch: it looks like there might be a
firewall issue between login.ecs.soton.ac.uk and crawler.ipv6matrix.org:
I cannot seem to be able to SSH directly from login.ecs.soton.ac.uk to
crawler.ipv6matrix.org whilst I can SSH into www.ipv6matrix.org and then
SSH from there to crawler.ipv6matrix.org
Alternatively, it could be a reverse DNS problem. I have done the
following traceroutes from login.ecs.soton.ac.uk:
traceroute to crawler.ipv6matrix.org (152.78.189.211), 30 hops max, 40
byte packets
1 servers-router.core.ecs.soton.ac.uk (152.78.68.190) 0.761 ms 0.802
ms 0.856 ms
2 fw2.core.ecs.soton.ac.uk (152.78.70.228) 0.653 ms 0.766 ms 0.830 ms
3 www.ipv6matrix.org (152.78.189.211) 1.737 ms !X 1.934 ms !X 1.989
ms !X
-bash-3.2$ traceroute www.ipv6matrix.org
traceroute to www.ipv6matrix.org (152.78.189.209), 30 hops max, 40 byte
packets
1 servers-router.core.ecs.soton.ac.uk (152.78.68.190) 0.758 ms 0.802
ms 0.857 ms
2 fw2.core.ecs.soton.ac.uk (152.78.70.228) 0.654 ms 0.770 ms 0.880 ms
3 elephant.ecs.soton.ac.uk (152.78.189.209) 2.313 ms 2.438 ms 2.494 ms
-bash-3.2$
Strange how traceroute reverse resolves crawler.ipv6matrix.org as
www.ipv6matrix.org and www.ipv6matrix.org as elephant.ecs.soton.ac.uk
FYI the correct names should be:
crawler.ipv6matrix.org = turtle.ipv6matrix.org = turtle.ecs.soton.ac.uk
turtle.ecs.soton.ac.uk has address 152.78.189.211
turtle.ecs.soton.ac.uk has IPv6 address 2001:630:d0:f104::11
www.ipv6matrix.org = elephant.ipv6matrix.org = elephant.ecs.soton.ac.uk
elephant.ecs.soton.ac.uk has address 152.78.189.209
elephant.ecs.soton.ac.uk has IPv6 address 2001:630:d0:f104::9
Kindest regards,
Olivier
On 31/03/2016 12:14, Metcalf C. (iSolutions) wrote:
>
> Morning Olivier
>
>
>
> Both machines should be back up and running now.
>
>
>
> Thanks
>
>
>
> Chrissie
>
>
>
> *From:*Olivier MJ Crepin-Leblond [mailto:ocl at gih.com]
> *Sent:* 29 March 2016 17:13
> *To:* Metcalf C. (iSolutions) <C.Metcalf at soton.ac.uk>; Tim Chown
> <tjc at ecs.soton.ac.uk>; Lance Draper <ld at ecs.soton.ac.uk>
> *Cc:* Newman David <drn at ecs.soton.ac.uk>; Webb J.P. <J.P.Webb at soton.ac.uk>
> *Subject:* Re: Power Outage affecting you servers - 29th-31st March
>
>
>
> Great to know that Chrissie. Thanks!
>
> Olivier
>
> On 29/03/2016 18:04, Metcalf C. (iSolutions) wrote:
>
> Hi Olivier
>
>
>
> Thank you for letting us know. We have a member of staff onsite
> who will be powering down any remaining machines before the power
> is cut to the rooms.
>
>
>
> We also have a small team coming to site early on Thursday morning
> to begin powering machines back up so they should be back online
> first thing.
>
>
>
> Chrissie
>
>
>
> *From:*Olivier MJ Crepin-Leblond [mailto:ocl at gih.com]
> *Sent:* 29 March 2016 16:23
> *To:* Tim Chown <tjc at ecs.soton.ac.uk>
> <mailto:tjc at ecs.soton.ac.uk>; Lance Draper <ld at ecs.soton.ac.uk>
> <mailto:ld at ecs.soton.ac.uk>
> *Cc:* Newman David <drn at ecs.soton.ac.uk>
> <mailto:drn at ecs.soton.ac.uk>; Webb J.P. <J.P.Webb at soton.ac.uk>
> <mailto:J.P.Webb at soton.ac.uk>; Metcalf C. (iSolutions)
> <C.Metcalf at soton.ac.uk> <mailto:C.Metcalf at soton.ac.uk>; Olivier MJ
> Crepin-Leblond <ocl at gih.com> <mailto:ocl at gih.com>
> *Subject:* Re: Power Outage affecting you servers - 29th-31st March
>
>
>
> Hello,
>
> confirming that I have shut turtle down completely; Elephant
> appears to be unwilling to shut itself down completely as it is
> still pinging back but I take it that it can be powered off safely.
> How will you bring the machines back online? Will someone press
> the switch?
>
> Kindest regards,
>
> Olivier
>
> On 21/03/2016 22:46, Olivier MJ Crepin-Leblond wrote:
>
> Hello all,
>
> thanks for the advance notice. I'll shut them down on the day,
> hours before the deadline & will email you all when this is
> done. (hoping they come alive later - their last reboot, as of
> today, was 580 days ago!)
> Kindest regards,
>
> Olivier
>
> On 21/03/2016 22:25, Tim Chown wrote:
>
> Hi Lance,
>
>
>
> In practice, these two systems are run by Olivier, copied,
> as an ISOC England project.
>
>
>
> Olivier, we really should press on towards virtualising
> these!
>
>
>
> Tim
>
>
>
> On 21 Mar 2016, at 16:13, Lance Draper
> <ld at ecs.soton.ac.uk <mailto:ld at ecs.soton.ac.uk>> wrote:
>
>
>
> Hi Tim,
>
>
>
> There will be a major power outage affecting Building
> 53 on March 30th.
>
>
>
> In order to prepare iSolutions will shutting down all
> server equipment in Building 53 from 16:00 on the 29th.
>
> Servers will be powered back on again from 7AM on the
> 31st.
>
>
>
> This will affect your machines called, elephant and
> turtle.
>
>
>
> To minimise the chances of damage to the machines
> please can you remotely shut them down before 16:00 on
> Tuesday March 29th.
>
>
>
> Apologies for the inconvenience,
>
>
>
> Lance
>
>
>
> Lance Draper
>
> Research Systems Manager
>
> Faculty of Physical Sciences and Engineering.
>
> University of Southampton
>
>
>
>
>
>
>
>
>
> --
> Olivier MJ Crépin-Leblond, PhD
> http://www.gih.com/ocl.html
--
Olivier MJ Crépin-Leblond, PhD
http://www.gih.com/ocl.html
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