[Halld-offline] /work/halld3: transition to new server on Thursday morning
marki at jlab.org
Wed Sep 1 09:05:01 EDT 2021
Reminder: this happens tomorrow (Thu.) at 9 am...
On 8/31/21 11:41 AM, Mark Ito wrote:
> Recall that during the transition of /work/halld to a new server a
> couple of weeks ago, /work/halld3 was left alone. SciComp is now ready
> to move /work/halld3 to a subdirectory of /work/halld3. Links will be
> installed so that the path /work/halld3 will continue to find the same
> files as it did in the past, but the physical location of those files
> will have changed. And any path starting with /w/halld-sciwork18,
> which does work now, will not work after the transition (it may
> resolve to a read-only file system at first before disappearing
> *The cut-over will happen between 9 am and 10 am (approximately)
> Thursday, September 2 (day after tomorrow)*. During this time the
> files on /work/halld3 will be unavailable.
> One technical point: the majority of files have already been
> transferred to their new home. The outage is to transfer files that
> will have recently appeared on the old server to the new. At that
> point write access to the old server will be removed so that no more
> new files are created. To make this final transfer go faster, we want
> to minimize the volume of "new" files on the old server. So for the
> next couple of days, before the switch, please try to limit the volume
> of new files being written to /work/halld3. Said another way, please
> refrain from dumping multi-terabyte datasets to /work/halld3 until
> after the transition.
> -- Mark
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