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ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
0000276 | [TMS] | minor | always | 29-06-10 09:04 | 07-03-11 13:22 | ||||
Reporter | Arno Schoenmakers | View Status | public | ||||||
Assigned To | |||||||||
Priority | normal | Resolution | fixed | ||||||
Status | closed | ||||||||
Summary | 0000276: Investigate archival storage extension | ||||||||
Description |
Suggest new hardware for archive. See below for additional info. A. |
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Additional Information |
Hi Josh and Arno, Adding it all up: Data production per half year: 1.8 TB Extra for 2nd 10B: 0.9 TB ------ total 2.7 TB which is more tham the available 1.9 TB So, we need another bit of storage. Arno, can you make a spec of what we need? Kind regards, Harm >>> Gyula Jozsa <jozsa@astron.nl> 6/28/2010 2:57 PM >>> Hi all, I did not go through all proposals, since they are mostly standard ones, using the capacity equivalent of 1024 channel line observations with an integration time of 60s. There is one project, though, R10B/010, for which I calculate the following: Setup: 1024-channel 2 pol line observation plus 6x64 4 polarisation continuum bands, integration time 10s Since a usual (1-minute integration time) observation needs 1800 Mbyte/12h and I calculate at the moment 574 h total observing time, I get to 60s/10s * 1800 MByte*(1024+6*128)/1024 channels /12 hours*574 hours Mbyte = 900 000 MByte disk space for this project alone. Cheers, Josh Arno Schoenmakers wrote: WSRT archive diskspace usage since 2006 (Gbyte unless denoted differently): 2006: 517 + 650 + 650 + 650 + 650 + 450 = 3.6 Tbyte 2007: 214 + 650 + 650 + 650 + 650 + 527 = 3.3 Tbyte 2008: 158 + 650 + 650 + 333 = 1.8 Tbyte 2009: 340 + 650 + 650 + 650 + 33 = 2.3 Tbyte 2010: 620 + 650 + 18 = 1.3 Tbyte (up to 28-6-2010) Still Available: 650 + 650 + 600 = 1.9 Tbyte Should be just enough for this year. There is an additional 650 Gbyte partition but that is also used for system backups and such. Arno |
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Attached Files | |||||||||
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Notes | |
(0000293) Arno Schoenmakers 08-07-10 07:22 |
Delegated to Teun; he will come up with suggestions. Note: Old archive must be transferred to new archive. |