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<p class=MsoPlainText>In our PNG deployment we have only just got the system up
for testing due to late delivery of most of the infrastructure eqt (we had the
laptops so were able to complete the initial training);<o:p></o:p></p>
<p class=MsoPlainText>- 250 XOs divided into six classes G3A - G5B and
all 15 teachers<o:p></o:p></p>
<p class=MsoPlainText>- One "eBox" fanless VIA server with 1GB
RAM (non-expandable). We had planned two (one for G3-4 and one for G5+) but
vital eqt did not show up in time so we are managing with one.<o:p></o:p></p>
<p class=MsoPlainText>- Campus wide wireless network, solar powered,
using a ratio of less than 30 XOs per AP.<o:p></o:p></p>
<p class=MsoPlainText>- 1Gb switches used throughout<o:p></o:p></p>
<p class=MsoPlainText>- 1:1 use of 15W thin film (GoldPeak) panels with
DC Share cables for the laptops. No power in this school.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>I have questions about power management for the server,
and feedback on server performance.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Layout is 3 x single storey double classrooms (G3A, 3B...
4A, 4B...etc) in line, separated by about 15m. The server is situated in a
parallel line of classrooms about 6m to one side. We use some centrally located
solar power supplies with POE. The whole system is DC powered and we use
digital; timers to turn things off when not needed to save power. However the
system provides good access for at least 15 hrs per day.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>(Advice on power management): I would like suggestions
how the server can be safely turned on and off automatically. I guess auto off
at an agreed time would be easy, turning on might be hardware dependent. Or can
we put it into sleep mode when not needed (10pm-7am) and have it running 24/7? With
solar power one has to be efficient as possible. If it is run 24/7, we’d
like to know how a timed daily reboot can be activated, and whether that is a good
idea or just leave it on.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>(Advice on server performance and testing suggestions): <o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>We only have 2 days to test the full system due to the
crazy logistical issues that have plagued us. Yesterday we had it all running
with the students in the classrooms, logged on to the server OK. They are
segregated into 3 courses at the moment (G3, G4, G5) with about 60 students per
course. However in the test yesterday it was out of school hours and only maybe
30 students per course (Grade) were present. We observed that browsing the
server, both with site files and public folders (such as Schools Wikipedia and
the heavier UNESCO ASEAN SchoolNet series of flash animations) was generally working
good and the server as responsive. Moodle admin (such as adding users to
courses) was working very responsively. So generally the impression was that
networking was functioning well over the entire campus.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>However, we noticed that collaboration was not working
well. XOs could not see all members of their course in neighbourhood view –
it seemed to be taking a long time to populate the view, and you could see some
dropping out occurring – XOs that were on and connected, suddenly
disappearing from view on a neighbouring XO. Likewise, sharing activities was
almost universally not working – no icon displayed on the course members
neighbourhood view. This contrasts with the good responsive and reliable browsing.
In this test, we were using presence service split by course, with the students
added as “students” and the teachers of those grades added as “teachers”.
No-one was given site roles. The teachers were also members of another course “teachers”
intended to allow collaboration between the teachers in different grades.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>We would like some feedback on what could be the issue.
Is it the low power server with only 1GB RAM? But we only had a maximum of
about 90 students divided into the three courses online yesterday. Could it be
some inefficiency in the networking? But browsing was working well. Could it be
that Moodle is broken in some respect? But during training we were experiencing
no issues with collaboration with the teachers.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>What data , logs can we collect to analyse the
performance and feed back to this list? <o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoNormal>Thanks.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>David Leeming and Dudley<o:p></o:p></p>
<p class=MsoNormal><span lang=DE><o:p> </o:p></span></p>
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