 |
 |
Hi Mark, I'm afraid I don't have any answers, but I presume something like what you're looking for has been done for UCL (an all VAC site), so we can try to see what's been done for them. Otherwise this is something definitely worth discussing at a Tuesday meeting. As John says you're not the only ones looking at going down this route. Cheers! Matt On 09/03/18 11:28, Mark Slater wrote: > Thanks a lot for the info Steve - That'll certainly help when actually > decommisioning the CE! However, I'm still unsure about how to switch the > availability/reliability tests to Dirac/VAC. I'm assuming this is > possible but I don't know who runs them, whether the switch is possible, > if it's still based on Nagios tests, etc. Does anyone have any info > about that? > > Thanks! > > Mark > > On 07/03/2018 12:38, sjones wrote: >> Hi, >> >> I've done this a few times. From memory, it's something like this, but >> there is an official procedure, please see below. Here are the things >> that I remember doing ... >> >> Raise a GGUS ticket to cover the work. Tell all your big VOs that is >> being turned off. Declare an outage for the CE, lasting for (say) a >> month. At the start of the outage, block new jobs from coming in, >> using some glite ce disable commands, the exact name of which eludes >> me now! Wait for all the work do finish, then give it one last >> accounting run. Make sure it all goes across. Then turn it off. If >> it's a VM, gzip it. Take it out of GOCDB after a few days, cancel the >> outage and move on to better things. >> >> I may have forgotten some steps, or got things wrong. The official >> guidance, which obviously takes precedence over my tips, is here: >> >> https://wiki.egi.eu/wiki/PROC12 >> >> Ste >> >> >> >> >> >> On 2018-03-07 11:51, John Hill wrote: >>> Dear All, >>> I'm in the same situation at Cambridge. The only WNs left on my >>> CREAM CE are ones I intend to decommission, and the CE itself is >>> obsolete. Hence I add my voice to Mark's, asking for advice on how to >>> proceed. >>> >>> Regards, >>> John >>> >>> On 07/03/2018 08:57, Mark Slater wrote: >>>> Dear All, >>>> >>>> >>>> I've now almost entirely switched to using VAC for our workers at >>>> Bham and in fact the only thing that I really keep the CREAM CE >>>> around for is stuff like nagios and SAM tests. Does anyone know what >>>> the procedure would be to switch these to using VAC through Dirac? >>>> It's seems a bit of a waste to keep a server and a couple of workers >>>> up just for this :) >>>> >>>> >>>> Any advice greatly appreciated! >>>> >>>> >>>> Thanks, >>>> >>>> >>>> Mark >>>> >>>> >>>> P.S. Btw, I'm also aware there are queues set up in Atlas and LHCb >>>> but I'm guessing those are far easier to remove! >>