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-----Mensaje original-----
De: Marc Schiffbauer [mailto:marc@schiffbauer.net]
Enviado el: miércoles, 24 de marzo de 2004 13:35
Para: debian-isp@lists.debian.org
Asunto: Re: 3ware Raid 5 and ext3 filesystem
* Andrew Miehs schrieb am 24.03.04 um 12:07 Uhr:
> Hi all!
>
> I have a 3ware SATA Raid controller configured with 5 disks in RAID5.
>
> I am trying to store millions of pictures on these disks, and am trying to
> find out how best to configure everything...
> So far
>
> /etc/sysctl.conf
> vm.max-readahead=512
> vm.min-readahead=512
> vm.bdflush=10 500 0 0 500 3000 10 20 0
>
> in /etc/fstab
> have mounted with 'noatime'
>
> The filesystem structure is so that there are no more than 1000 files/
> directories in one directory
> When I create the filesystem, should I use the stride option? or is this
> only for software raid?
> If I use stride, what value should I set. The controller is set / as per
> default to 64k stripes.
> After mounting the filesystem, and doing my first 'ls -ln' in a directory
> with 1000 pictures it takes ages!
> Thanks for the help,
>
My hint is to use ReiserFS when you are playing with 'millions' of
files on one partition. ReiserFS outperforms ext2/3 FS when its
about to store, seek or delete manymany (small) files.
I personally use ext3 everywhere but on partitions with an extremely
high number of files on it. (News-Server, Squid-Cache,
Cyrus-Partition ...)
-Marc
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