Re: interface for tar
On Wednesday 20 August 2008 13:50, Mag Gam wrote:
> David:
>
> Do you have some sort of script to manage this? I am a little hesitate
> to give professors mkfs and mount sudo access. Is there a way around
> this?
You can specify the 'user' option in fstab so that usres can mount the
relevant filesystem.
If you precreate the files with the filesystems in them, it may cover it.
>
> On Wed, Aug 20, 2008 at 12:13 AM, Mag Gam <magawake@gmail.com> wrote:
> > WOW!
> >
> > Very nice ideas.
> >
> > I like the dd idea. What command would I use for that? Also, the files
> > are coming from NFS; how can I help this? Any ideas for this?
> >
> > On Tue, Aug 19, 2008 at 10:24 PM, David Fox <dfox94085@gmail.com> wrote:
> >> On Tue, Aug 19, 2008 at 5:40 PM, Mag Gam <magawake@gmail.com> wrote:
> >>> At my university we run fluid dynamic simulations. These simulations
> >>> create many small files (30,000) per hour. Their size is very small
> >>> (20k to 200k). Instead of having this on the filesystem since it take
> >>
> >> My approach:
> >>
> >> make a sufficiently-sized file using dd if=/dev/zero of=/bigfile bs=1m
> >> count=1000
> >>
> >> size so that you have enough room, and room for growth, of course
> >>
> >> Make a filesystem inside of that file (reiserfs might be a good choice
> >> since it is well-designed to handle lots of smallish files, although
> >> "small" by that definition may be much smaller than 200k)
> >>
> >> Mount that file in loopback mode prior to running your simulations,
> >> and (after moving the files over to the new filesystem) direct all
> >> filesystem traffic to use that 'filesystem' which may entail only
> >> something simple as cd'ing into the 'filesystem' and starting work.
> >>
> >>
> >> --
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Shachar Or | שחר אור
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