[Novalug] [Off-list] Re: btrfs vs the world ...
Bryan J Smith
b.j.smith at ieee.org
Tue Dec 15 17:41:09 EST 2009
Do Internet searches on myself and XFS from 2001 on-ward. ;)
Also, on NTFS ...
Write access to NTFS is _not_ safe in Windows itself, unless
the Windows system that is writing to it actually created it.
The problem has always been SAM-SID related, not Linux. In
fact the #1 problem with NT 3, 4 and 5 was that it lacked a
read-only mount/map/access option so it could safely read
My largest complaint is that Microsoft has not supported UDF
like Linux. UDF solves _all_ problems with portable data storage.
Instead, Microsoft has created exFAT because it is _very_unsafe_
to use NTFS for portable data. Of course it is largely NT 6 only.
Bryan J Smith - mailto:b.j.smith at ieee.org
Sent via BlackBerry from T-Mobile
From: Varol Okan <varokan at movingsatellites.com>
Date: Tue, 15 Dec 2009 17:36:20
To: Bryan J. Smith<b.j.smith at ieee.org>
Cc: Gregory Maxwell<gmaxwell at gmail.com>; Northern Virginia Linux User's Group<novalug at calypso2.tux.org>
Subject: Re: [Off-list] Re: [Novalug] btrfs vs the world ...
understood. you make a couple of good points ( sharp teethed points if I
may add :)
Anyhow I am aware of the development state of btrfs and I may just be a
bit anxious about having the feature set it provides. I would love to
see the performance on a local FS come close to ext3/4. I guess I want
all the goodies of ext3/4 + btrfs's. Sorry, I am just a demanding user
:) Oh and it would be waaaaay cool if my data would be 'save' too ;)
I remember way back waiting for write access the ntfs to the point where
it became available but so late it did not matter to me anymore. I just
wish ( as a Christmas present ) that btrfs will be ready for prime time
before it reaches the same stale state.
Bryan J. Smith wrote:
> It's an "eye opener" for me, but not in the way you might think.
> 1. Anyone who evaluates filesystems based on performance (let alone
> distributed filesystems) are going after the wrong metric. It's way, way
> down on my list of considerations.
> INSIGHT: There's not a week that goes by where people don't remotely
> understand the difference between local and distributed filesystems.
> Instead of questioning their own usage (let alone classification/need of
> their data to be distributed), they blame the filesystems. This is also the
> case with other usage (not just local v. distributed).
> 2. EXT4 development has been funded by Red Hat, with the major
> knowledgebase from the same -- Tweedie (probably the man who
> most made Ext2/Ext3 "not suck") and Sandeen (SGI XFS developer,
> and help architect and re-wrote a lot of the VFS in kernel 2.5+ that
> all filesystems benefit). So why is Phoronix benchmarking Ubuntu?
> INSIGHT: There's not a week that goes by where the tales of "oh, I
> use Ubuntu at home, so I brought it in for our servers" -- not even Ubuntu
> LTS, but leading-edge Ubuntu -- and then people wonder why they not
> only have issues, but the "knowledge" is severely lacking in not just the
> "free" realm, but the "paid" realm as well.
> I.e., when it comes right down to it, for enterprise usage, the companies
> that actually develop most of the code can do the most for you when you
> run into the implementations and cases _outside_ home usage or simple
> web server usage, and you start hitting that "enterprise infrastructure"
> usages. I don't say that as a slant towards Canonical/Ubuntu, but just a
> repeat, sad theme that I see at clients/customers way too much.
> ----- Original Message ----
> From: Varol Okan <varokan at movingsatellites.com>
> This is an eye opener I think.
> I was planing in playing with btrfs, to see performance but after the
> Phoronix test results, I guess this would be wasted time ( wrt
> performance anyways ).
> I like the feature list of btrfs a lot and it might make a lot of sense
> for certain applications ( I am especially thinking about the snapshot
> capabilities ). So I hope that the performance in general can be
> improved to come at least close to ext3 / ext4.
> Is anyone here using, testing, or playing with btrfs ?
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