I've always used HDDs for the main backup/working copies, and DVDs for longer-term backup. You can get hold of 100x spindles of DVDs quite cheaply these days... I wouldn't call it convenient, though.
----- Original Message ---- From: Monika Sharma <[EMAIL PROTECTED]> To: Discussion list for GROMACS users <gmx-users@gromacs.org> Sent: Thursday, August 9, 2007 10:48:52 AM Subject: Re: [gmx-users] Storage of large output files Thanks Mark for your reply. Thats a sound advice. I will really take care of. Actually, through my previous mail, I wanted to know that what other groups are using as storage devices for the backup of their large files, that must have figured out that which way is best-" economical and efficient" way to store their data. Regards, Monika Mark Abraham wrote: > Monika Sharma wrote: >> Dear All, >> We have started our venture into MD recently, for which we are using >> our in-house resources. Now that MD runs are giving very large output >> files like for trr files. The files keep piling up and using spaces >> on the work machines. This is creating problems with the depletion of >> space with every run. Can anyone please suggest an "economical and >> efficient" way how to take backup of such a large files of the order >> of Gb or so, so that we dont end up piling up our work machines with >> such files. And the data need to be saved for future references.. > > First, consider whether you are producing more output than you need. > Look at the options for output frequency of positions and velocities > in .trr files, whether you should be using .xtc files, and whether you > should only be outputting subsets of your data. > > Normally you only want a full frame of positions and velocities in > your .trr file with frequency with which you might ever want to do an > exact restart (and make sure your energy output frequency is a > suitable multiple so you also have energies at this time). This > frequency is invariably much smaller than the frequency with which you > want output data. If you only want position data for your solute for > your later analysis, then outputting only that group to an .xtc file > with frequency as low as you'd ever need will be a tiny fraction of > the cost of a .trr file of the whole system with positions and > velocities at every step. Be aware that analysis types that require > autocorrelation functions need data sampled much more frequently than > the characteristic times of the system. > > Mark > _______________________________________________ > gmx-users mailing list gmx-users@gromacs.org > http://www.gromacs.org/mailman/listinfo/gmx-users > Please search the archive at http://www.gromacs.org/search before > posting! > Please don't post (un)subscribe requests to the list. Use the www > interface or send it to [EMAIL PROTECTED] > Can't post? Read http://www.gromacs.org/mailing_lists/users.php > -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ gmx-users mailing list gmx-users@gromacs.org http://www.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to [EMAIL PROTECTED] Can't post? Read http://www.gromacs.org/mailing_lists/users.php ____________________________________________________________________________________ Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos & more. http://mobile.yahoo.com/go?refer=1GNXIC _______________________________________________ gmx-users mailing list gmx-users@gromacs.org http://www.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to [EMAIL PROTECTED] Can't post? Read http://www.gromacs.org/mailing_lists/users.php
