Report from Computing Executive Group
Reports from units.
Each plugbar in a rack is on a different circuit for added redundancy.
The recent release of Fedora 11 may make this even more urgent since it may come with Firefox 3.5 which is even tougher on locally signed certificates.
Stephen pointed out that the header doesn't block every way in which a user could force a reboot but it does block all the obvious ones.
The default setting will be to have autoreboots switched on.
We remounted one of Alexandria's file systems which had previously shown major signs of corruption. The file system now appears to be fine! We have passed on the information to Nexsan.
It was noted that machines seemed to make the switch to exam mode more reliably than they had in the past.
We can't use the 42" screens in the atrium for long periods of time as there is still an air conditioning issue with G.Z11.
Topics for discussion
"The cable baskets and holes in the server room racks are pretty crowded, which brings the risk of damage to the fibrechannel patch leads. How could we arrange things better? (Move the FC stuff to the fronts of the racks, for example?)"
Several possible solutions were discussed including turning the FC switches around and feeding the fibres across the top of the racks, adding another cable tray to the back of the rack and separating out the fibre from the network and power cables, relocating the FC switches to lessen the length of run needed and making use of the new plugbars recently installed to reduce the number of power cables running between racks. There doesn't appear to be one clear solution however. Stephen noted that all MPU non-fibrechannel hosts are being moved out of the row of racks which supports fibrechannel. Other Units following this example would help matters further.
Graham commented that power cables sometimes seemed to be less than securely seated in the plugbar sockets and wondered if we cold come up with something to make things more secure.
"As it says. Note that in due course the small server room will have its maglock enabled, and will become more open-access than now. We should therefore establish good practices there now, so that we can lead by example when that happens"
George asked that we set a good example when setting up servers in the small server room so that non computing staff may be encouraged to follow our lead. He also pointed out that there was quite a bit of junk in the small server room which will need to be removed before it goes into service.
The next Operational meeting will be on Wednesday 24th June in IF-4.31.
Please contact us with any comments or corrections.
Unless explicitly stated otherwise, all material is copyright The University of Edinburgh