Summary of HEASARC ftp & http file transfer statistics in March 2002 (This includes legacy ftp & http stats, and cossc ftp stats for CGRO, and also includes Imagine the Universe http statistics) _____________________________________________________________________________ TOTAL FTP+HTTP TRANSFERS FROM ALL LEGACY DIRS = 215.4 GB + 261.6 GB = 476.9 GB AND FTP TRANSFERS FROM ALL COSSC DIRS = 6.3 GB _____________________________________________________________________________ THE MOST POPULAR (> 1 GB of data transferred) DIRECTORIES (COMBINED FTP STATS OF LEGACY & COSSC THIS MONTH): Raw Totals Corrected totals assuming files GB %Total(GB) % retrieved = % tarred GB %Total(GB) Directory: asca 5418 6.44 2.91% 10.34 4.66% compton 54245 6.27 2.83% 6.35 2.87% retrieve 464 16.94 7.64% --- --- software 3315 26.03 11.74% 26.03 11.74% xmm 387 2.68 1.21% 3.09 1.39% xte 57645 161.94 73.07% 172.80 77.97% subtotal of 220.30 99.40% 218.61 98.64% above dirs ___________________________________________________________________________ 2001-2002 Global Summary of HEASARC Server Statistics FROM FTP DIRS FROM MISSION DIRS FROM ALL DIRS SERVER +> FTP FTP HTTP HTTP HTTP FTP+HTTP MONTH FILES GIGABYTES FILES GIGABYTES GIGABYTES GIGABYTES ----- ----- --------- ----- --------- --------- -------- Jan 2001 52257* 184.68* 10910 0.60 130.71^ 315.40* Feb 181578* 166.91* 13694 0.35 133.69^ 300.60* Mar 35535* 136.98* 8978 0.25 137.73^ 274.71* Apr# 128551* 125.62* 14941 0.39 126.94^ 252.56* May+ 343076* 244.21* 19162 0.28 138.43^ 382.64* Jun+ 562103* 270.31* 4605 0.24 96.92^ 367.24* Jul~ 71816* 134.66* 4201 1.35 76.37^ 211.03* Aug 55343* 176.74* -- -- 80.49^ 257.23* Sep 93883* 207.66* 2742 1.08 98.70^ 306.36* Oct 49717* 270.69* 13426 2.45 139.43^ 410.13* Nov 101225* 184.16* 7135 0.80 143.51^ 327.68* Dec& 66804* 148.85* 6804 11.03 124.84^ 273.69* Jan 2002 235252* 215.23* 17410 12.47 189.51^ 404.75* Feb 59644* 157.28* 4517 13.12 174.92^ 332.20* Mar 123745* 221.63* 8454 11.83 261.58^ 483.20* Apr May Jun ----------------------------------------------------------------------------- * includes cossc ftp stats ^ includes imagine http stats # A RAID failure on April 26-30 2001 meant that many datasets were offline + Increased by a large amount of RXTE data copied by UCSD in May and June 2001 ~ A RAID failure on July 28-31 2001 meant that many datasets were offline & Problems with the ftp server in December 2001 meant that data retrievals were made only using the http server for a period of about five days. After that time, users can retrieve using either the ftp or the http server. ____________________________________________________________________________ Detailed Breakdown of Current Month by Directory Note that usage statistics on ftp, Gopher and the Web are directly available (on a month-by-month basis) on the Web: the URL is http://heasarc.gsfc.nasa.gov/stats/statsmain.html. In general, directories correspond to specific missions, e.g., rosat to ROSAT, asca to ASCA, etc., with the following exceptions: the caldb directory contains some multi-mission calibration data (mission specific caldb data are credited to the mission not to caldb), fits_info contains FITS-related files, heasarc contains complete database catalogs, and software contains multi-mission software. Transfer Protocol: ftp http files Mbytes %Total files Mbytes /FTP Directory: ariel5 2 0.8 0.00% asca 5418 6441.6 2.91% 914 28.4 astroe 6 1.9 0.00% bbxrt 0 0.0 0.00% caldb 84 18.3 0.01% chandra 0 0.0 0.00% compton 54245 6268.8 2.83% copernicus 0 0.0 0.00% cosb 0 0.0 0.00% dxs 0 0.0 0.00% einstein 74 18.7 0.01% euve 44 315.2 0.14% exosat 40 32.3 0.01% fits_info 97 7.9 0.00% ginga 7 0.2 0.00% heao1 14 14.3 0.01% heao3 2 0.0 0.00% heasarc 601 350.6 0.16% 627 624.3 hete2 1 0.0 0.00% htxs 3 2.1 0.00% oso8 2 0.1 0.00% retrieve 464 16939.9 7.64% 882 10166.4 rosat 1126 538.2 0.24% 4914 114.1 sas2 1 0.0 0.00% sas3 0 0.0 0.00% sax 75 31.1 0.01% software 3315 26026.1 11.74% vela5b 0 0.0 0.00% xmm 387 2680.7 1.21% xte 57645 161938.2 73.07% 1024 892.6 other 92 0.3 0.00% 93 4.3 TOTAL: 123745 221627.3 100.00% 8454 11830.1 Note: (i) Junk directories, as well as the top level of the ftp area, are not explicitly listed due to their low usage statistics, but these transfers have been included in the "other" category. (ii) The breakdown by mission of data copied from the retrieve area cannot be directly estimated, but the breakdown by mission of data tarred and placed in the retrieve area can be: of 33.312 GB tarred, 64.1% were RXTE data, 23.0% ASCA data, 8.1% ROSAT data, 2.4% XMM-Newton data, 1.0% BeppoSAX data, and 0.5% CGRO data. (**) The cossc ftp statistics are included here. ______________________________________________________________________________ Web directories relevant to HEASARC (all by http transfer) # of files # of Megabytes ab 12,097 70.5 argus 279 3.1 astrobrowse 260 3.9 audio 56,892 35909.8 classx 931 15.2 cgi-bin 41,191 651.5 db-perl 15,345 656.3 docs 1,986,220 71977.5 fitsio 1,707 65.1 ftools 12,072 83.1 FTP 8,454 11830.1 the breakdown is given above hera 6,001 128.4 Images 5,210,849 36153.6 images 81,831 608.7 lheasoft 25,419 241.6 listserv 15,365 97.9 mail_archive 9,404 66.9 RPS 1,344 18.1 scripts 8,686 59.8 stats 3,369 73.0 Tools 4,881 609.5 topbase 1,738 34.7 Videos 26,577 27081.8 W3Browse 15,512 101.1 webspec 1,590 30.7 WebStars 1,210 6.1 wgacat 795 11.9 xanadu 3,336 165.9 xclasses 2,728 12.2 xstar 287 2.5 xte_weather 14,982 1736.7 Imagine the Universe 4,470,544 71725.9 MB