linux-kernel - Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion

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Date:	Tue, 1 Aug 2006 16:52:34 +0200
From:	Adrian Ulrich <reiser4@...nkenlights.ch>
To:	"Horst H. von Brand" <vonbrand@....utfsm.cl>
Cc:	bernd-schubert@....de, reiserfs-list@...esys.com,
	jbglaw@...-owl.de, clay.barnes@...il.com, rudy@...ons.demon.nl,
	vonbrand@....utfsm.cl, ipso@...ppymail.ca, reiser@...esys.com,
	lkml@...productions.com, jeff@...zik.org, tytso@....edu,
	linux-kernel@...r.kernel.org
Subject: Re: the " 'official' point of view" expressed by kernelnewbies.org
 regarding reiser4 inclusion


> > While filesystem speed is nice, it also would be great if reiser4.x would be 
> > very robust against any kind of hardware failures.
> 
> Can't have both.

..and some people simply don't care about this:

If you are running a 'big' Storage-System with battery protected
WriteCache, Mirroring between 2 Datacenters, snapshotting.. etc..
you don't need your filesystem beeing super-robust against bad sectors
and such stuff because:

 a) You've paid enough money to let the storage care about 
    Hardware issues.
 b) If your storage is on fire you can do a failover using the mirror.
 c) And if someone ran dd if=/dev/urandom of=/dev/sda you could
    even rollback your Snapshot.
    (Btw: i did this once to a Reiser4 filesystem (overwritten about
    1.2gb). fsck.reiser4 --rebuild-sb was able to fix it.)


..but what you really need is a flexible and **fast** filesystem: Like
Reiser4.

(Yeah.. yeah.. i know: ext3 is also flexible and fast.. but Reiser4
simply is *MUCH* faster than ext3 for 'my' workload/application).

Regards,
 Adrian

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