Hello przemolicc,

Friday, December 22, 2006, 10:02:44 AM, you wrote:

ppf> On Thu, Dec 21, 2006 at 04:45:34PM +0100, Robert Milkowski wrote:
>> Hello Shawn,
>> 
>> Thursday, December 21, 2006, 4:28:39 PM, you wrote:
>> 
>> SJ> All,
>> 
>> SJ> I understand that ZFS gives you more error correction when using
>> SJ> two LUNS from a SAN. But, does it provide you with less features
>> SJ> than UFS does on one LUN from a SAN (i.e is it less stable).
>> 
>> With only one LUN you still get error detection which UFS doesn't give
>> you. You still can use snapshots, clones, quotas, etc. so in general
>> you still have more features than UFS.
>> 
>> Now when in comes to stability - depends. UFS is for years in use
>> while ZFS much younger.
>> 
>> More and more people are using ZFS in production and while there're
>> some corner cases mostly performance related, it works really good.
>> And I haven't heard of verified data lost due to ZFS. I've been using
>> ZFS for quite some time (much sooner than it was available in SX) and
>> I haven't also lost any data.

ppf> Robert,

ppf> I don't understand why not loosing any data is an advantage of ZFS.
ppf> No filesystem should lose any data. It is like saying that an advantage

I wasn't saying this is advantage. Of course no file system should
lose your data - it's just that when new file systems show up on
market people do not trust them in general at first - which is
expected precaution.

Part of such perception is Linux - due to different development type
you often get software badly written and tested - try to look at
google how many people lost their data with RaiserFS for example.
The same happened for many people with XFS on Linux.

That's why I thought emphasis on ZFS that it hasn't lost my data even if
it's new-born file system and I've been using it for years (as other
users) is important, especially for people mostly from Linux world.

ps. I really belive development style in Open Solaris is better than
    in Linux (kernel).

-- 
Best regards,
 Robert                            mailto:[EMAIL PROTECTED]
                                       http://milek.blogspot.com

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