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Number crunching :
Longer MB units
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Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
My last post is for Richard Haselgrove. Sorry for the confusion. |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14679 Credit: 200,643,578 RAC: 874 |
Starting today, P2030 is getting five more observing slots on consecutive days (01 May - 05 May). I hope Eric can come up with some way of alleviating the CUDA VLAR problem before those tapes hit the splitters. Follow the Arecibo observing schedule link, as in my earlier post, and pick a likely-looking 'fortnight commencing' link in the left-hand frame. I found P2030 on the Apr 23rd. page, starting around 4 AM local time - that's what you get for being an astronomer! |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
Thank's for explaining. It will be interesting to see see how long it takes to process the information and then to see how long it takes for the tape to be added to the splitters. Do you have a eta in mind? I have no idea. |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14679 Credit: 200,643,578 RAC: 874 |
Thank's for explaining. It will be interesting to see see how long it takes to process the information and then to see how long it takes for the tape to be added to the splitters. Do you have a eta in mind? I have no idea. No idea at all! All you can do is keep an eye on the tape list on the server status page. AP is splitting 14 March 2009 today: a couple of odd tapes (very odd) for 07 April have been queued up already: yet there are tapes from last December still in the system, as we've been discussing in this thread. You could try asking Matt, but I doubt you'll get an answer - he likes to keep us guessing about things like this (like his thread titles). |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
You are right about the splitters. I might pm Matt and ask him all I'd like to really see is a inter cater as to when new tapes are added and maybe started. I think i' the only one that wants this information. If other people like the idea of this information can you please click the + at the bottom of my post. Thank you in advance. |
-ShEm- Send message Joined: 25 Feb 00 Posts: 139 Credit: 4,129,448 RAC: 0 |
If other people like the idea of this information can you please click the + at the bottom of my post. I'd like to, but I don't see any + (nor -) here at S@h, only a !(red X) and I don't think you want me to click that ;) |
Josef W. Segur Send message Joined: 30 Oct 99 Posts: 4504 Credit: 1,414,761 RAC: 0 |
Some random thoughts stirred by previous posts... When a box of hard drives with data arrives from Arecibo, as time is available the data is pulled off and resaved as tape size files. Once all the drives have been processed, they can be sent back to Arecibo. Matt has spoken about the pipeline several times, the step of actually mounting the drives can't be automated. As the files are created, while there's space in a local storage array they'll be put there and probably automatically added to the list of available 'tapes' on the server status page. When storage is getting tight the created files can be transferred to the HPSS down the hill at LLBNL, assuming there's enough bandwidth available to send them. At other times, if the files available for splitting seem likely to run out some data can be brought back from the HPSS. IMO the list of 'tapes' on the server status page is enough, it gives a fair picture of what's coming in the next week or so. My guess is a new mb_splitter process chooses the next 'tape' file in the order they were added to storage, if so I'd prefer the status page list in the same order. There has been a recent problem recording data, a new SATA card was sent to Arecibo then a different cable. I haven't tried to infer more detail from Matt's posts, but it's quite possible some of the A2030 observations haven't been recorded. Joe |
Speedy Send message Joined: 26 Jun 04 Posts: 1643 Credit: 12,921,799 RAC: 89 |
I agree completely I might pm Matt and ask him all I'd like to really see is a inter cater as to when new tapes are added and maybe started. I think i' the only one that wants this information. If other people like the idea of this information can you please click the + at the bottom of my post. Thank you in advance. I'd like to, but I don't see any + (nor -) here at S@h, only a !(red X) and I don't think you want me to click thatYou are correct there is no + or - they use that system over in the Rosetta forum. I have decided that I'm not going to connect Matt over this issue. But by all means if you strongly about the issue I will most certainly back you just pm me. |
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