john slee wrote:
>
> On Wed, May 09, 2001 at 10:38:14AM +0300, Mart?n Marqu?s wrote:
> > We are waiting for a server with dual PIII, RAID 1,0 and 5 18Gb scsi disks to
> > come so we can change our proxy server, that will run on Linux with Squid.
> > One disk will go inside (I think?) and the other 4 on a tower conected to the
> > RAID, which will be have the cache of the squid server.
>
> that's a pretty huge cache, have you considered using 8*9gb disks
> instead of 4*18? what sort of request throughput/latency are you
> aiming for? as the number of requests grows, disk seek times are
> a very real problem.
>
> > One of my partners thinks that we should use reiserfs on all the server (the
> > partitions of the Linux distro, and the cache partitions), and I found out
> > that reiserfs has had lots of bugs, and is marked as experimental in kernel
>
> well, lots of bugs in reiserfs have been fixed.. obviously there are
> more bugs to come (as always), but on the whole a lot of people are very
> happy with it. there certainly haven't been many posts of reiserfs
> corruption lately at all on linux-kernel.
>
> > 2.4.4. Not to mention that the people of RH discourage there users from using
> > it.
>
> they do?
>
> > So what I want is to know which is the status of this 3 journaling FS. Which
> > is the one we should look for?
>
> xfs, while wonderful, probably isn't what you're looking for. AFAIK it
> is intended more for very very very large files.
>
> > I think that the data lose is not significant in a proxy cache, if the FS is
> > really fast, as is said reiserfs is.
>
> data loss is always significant. consider the case where you are forced
> to rebuild the filesystem squid's cache directories reside on...
> admittedly it is an extreme case, but it is a possibility all the same.
>
If you worry about that, put the squid cache in a fs
of its own. If it ever dies - use mkfs and restart with an empty cache.
No need to spend a long time fsck'ing something with a limited lifetime
that can be re-fetched.
Helge Hafting
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