From: Ilker Gokhan (IlkerG@sumerbank.com.tr)
Date: Tue 15 May 2001 - 05:18:16 EEST
Makale eski kalmis..:-)
reiserfs su anda en az 2.2.18 kernel icin var. (2.2.19 en az tavsiye ederim.
Hem kernel bug yuzunden hemde squid icin optimizasyonu kernel 2.2.19 icin
reiserfs-3.5.32 versiyonu icin var). Yazida 2.2.17 icin reiserfs in
reiserfs-3.5.27 versiyonundan bahsediliyor.
Saygilarimla,
Ilker G.
> -----Özgün İleti-----
> Kimden: Murat SULUHAN [mailto:murat.suluhan@tesam.com.tr]
> Tarih: Monday, May 14, 2001 2:29 AM
> Kime: Multiple recipients of list LINUX
> Konu: [LINUX:27368] FW: reiserfs
>
>
> Merhabalar
>
> Meraklilar icin,
>
> --------------------------------
> |
> | Murat SULUHAN
> | TE.SA.M. T.U.R.K. / GLOBALSTAR
> |
> --------------------------------
>
> ->Tips on reiserfs
> ->By Nicholas Petreley
> ->
> ->I decided to live dangerously last week and create a couple
> of reiserfs
> ->partitions on my primary Linux server. Reiserfs is a
> journaling file
> ->system that is purportedly more efficient at handling many
> small files
> ->than the de facto standard ext2fs file system and just as
> efficient as
> ->ext2fs in other cases.
> ->
> ->What I like most about reiserfs is that it recovers from
> things such as
> ->power failures extremely fast, since it doesn't have to perform the
> ->lengthy consistency checks required by ext2fs. Like many other
> ->journaling file systems (such as the one used in Windows 2000, I
> ->believe), reiserfs won't necessarily protect your data in
> the event of
> ->a power outage. But it will protect the consistency of the
> file system
> ->itself.
> ->
> ->Now put down that keyboard if you're about to send me a
> flame for not
> ->using a UPS. I am using a UPS. In fact, I strongly suspect
> my UPS has
> ->actually been the source of some recent power outages. My PK
> ->Electronics Blackout Buster UPS and regulator decided to go
> funky on me
> ->last week. It turned off my server twice, and I think it blew up my
> ->Viewsonic P815 monitor with voltage spikes. I suspect the
> UPS because
> ->I've had no real power outages, and I've only had problems with the
> ->equipment plugged into the UPS. I replaced it with a UPS
> from Belkin,
> ->and everything has behaved normally since.
> ->
> ->Anyway, I reconfigured my server so that all my shared
> files for NFS
> ->and Samba are now on their own reiserfs partition. I put my
> CommuniGate
> ->pro mail directories on a reiserfs partition, too. My /var
> partition is
> ->also a reiserfs partition, which means my Squid Web cache
> now operates
> ->on reiserfs. I haven't done any benchmarks yet, but the
> performance of
> ->my Web cache and proxy seems to have improved dramatically
> since I put
> ->all its files on the reiserfs partition. There are supposedly Squid
> ->cache optimizations in reiserfs, so perhaps that's why I'm seeing
> ->noticeable results. Regardless, consider me a big fan of
> reiserfs so
> ->far.
> ->
> ->In fact, I like it so much that I converted a few of my client
> ->partitions to reiserfs. The only thing I haven't done yet
> is convert a
> ->root partition. I tried but have failed so far. The
> partition that I
> ->tried to convert is small, but it resides on a 40 GB hard drive. I
> ->noticed afterward in the FAQ that reiserfs has problems
> with IDE drives
> ->larger than 32 GB unless you apply a patch. Perhaps that is
> the problem
> ->I'm experiencing. I'll work on it and get back to you.
> ->
> ->The only other problem I've had is bizarre. I run the squidGuard
> ->redirector along with the Squid Web cache in order to block
> porn sites.
> ->(By the way, if you haven't looked at squidGuard, now is
> the time. It
> ->is one delightful piece of software! See Resources for
> link.) Due to a
> ->bug in one version of Squid, I needed Squid to launch the
> redirector by
> ->running a script file called /usr/bin/sguard that looks
> something like
> ->this:
> ->
> ->#!/bin/bash
> ->exec /usr/local/bin/squidGuard -c /etc/squidGuard/squidGuard.conf
> ->
> ->Everything worked fine until I converted /usr/local into a reiserfs
> ->partition. Then Squid stopped launching the squidGuard
> redirector. I
> ->made an identical copy of /usr/local on ext2fs and tried it
> again. It
> ->worked. I have no idea why I can't execute the file from
> /usr/local/bin
> ->if it is a reiserfs partition.
> ->
> ->I'd like to figure it out or get a word of advice from someone who
> ->works on reiserfs. But my interim solution was simple. I
> just copied
> ->the squidGuard program to the /usr/bin directory (which is
> ext2fs) and
> ->changed the script to run it from there. That way I get to
> ->keep /usr/local as a reiserfs partition and still avoid the problem.
> ->
> ->Installing reiserfs
> ->Some distributions include reiserfs as a module compiled into the
> ->kernel. In that case, you just need to make sure you have
> the reiserfs
> ->utilities installed and then issue the command modprobe reiserfs to
> ->load the module. After that, you're ready to format a partition as
> ->reiserfs and start using it.
> ->
> ->If you don't have reiserfs compiled into your kernel or
> available as a
> ->module, fear not. It is very easy to build reiserfs support
> into your
> ->kernel. Download and install the source code for the kernel of your
> ->choice (I am using the 2.2.17 kernel).
> ->
> ->Then download the reiserfs patch (see Resources for a
> link). Put the
> ->patch in your /usr/src directory or in the directory
> immediately above
> ->where you have your kernel source code.
> ->
> ->Before you take the next step, make sure that the path to
> the kernel
> ->source code is /usr/src/linux. If it isn't, then rename the kernel
> ->source code directory or create a symbolic link to provide
> that path.
> ->For example, the default Debian source code directory might
> be kernel-
> ->source-2.2.17. In that case, you want to create a symbolic
> link such as
> ->cd /usr/src; ln -s kernel-source-2.2.17 linux.
> ->
> ->Now apply the patch. Change to the /usr/src directory and use the
> ->command zcat linux-2.2.17-reiserfs-3.5.27-patch.gz | patch
> -p0 to apply
> ->the patch. If you hastily decompressed the file, then run
> the command
> ->patch -p0linux-2.2.17-reiserfs-3.5.27-patch instead.
> ->
> ->Now you need to configure your kernel. There are several ways to do
> ->that, but I prefer to change to the /usr/src/linux
> directory and run
> ->make menuconfig for that step. You'll need ncurses development
> ->libraries installed for that to work. If you're a hard core
> Linux user
> ->or want to become one, just run make config instead. You
> can also run
> ->make xconfig if you prefer a graphical configuration tool.
> ->
> ->You should notice a reiserfs option in the configuration
> process under
> ->the topic file systems now. Select it. I have reiserfs
> configured as a
> ->loadable module, since that makes it easier to fix any potential
> ->reiserfs problems in the future without having to recompile
> the whole
> ->kernel. There is another option to enable reiserfs internal checks.
> ->That option is really for debugging purposes, so I strongly
> recommend
> ->that you do not use it, since it will slow reiserfs' performance.
> ->
> ->If this is your first attempt at creating a custom kernel,
> you'll need
> ->to step through all the options and make sure your kernel supports
> ->everything you need for your system. It is way beyond the
> scope of this
> ->column to walk you through that process. I recommend
> reading the README
> ->file in the /usr/src/linux directory for instructions on how to
> ->configure and install your new kernel.
> ->
> ->Finally, you'll need to compile the reiserfs utilities and install
> ->them. It is a very simple process. Just change to
> ->the /usr/src/linux/fs/reiserfs/utils directory and run make
> dep; make;
> ->make install.
> ->
> ->Now create a partition that you want to format as reiserfs.
> Mark the
> ->partition as a Linux filesystem, the same way you would if you were
> ->about to create a standard ext2 filesystem. Assuming your
> new partition
> ->is /dev/hdb3, you would then run mkreiserfs /dev/hdb3 to format the
> ->partition. That process will overwrite any data you may
> have on that
> ->partition, so be sure you know what you're doing. Now mount the
> ->partition and get to work!
> ->
> ->About the author(s)
> ->-------------------
> ->Nicholas Petreley writes The Penguin Brief for LinuxWorld.com.
> ->__________________________________________________________________
>
>
>
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