[ngw] NSS Vs EXT3

Danita Zanre dzanre.ngwlist at gmail.com
Wed Mar 2 16:30:13 UTC 2011


The "not as recoverable" is what keeps me away. I've never lost an ext3 partition, but I've lost multiple reiser partitions over the years. Backup is nice, but it can make for a long day to restore GW after the partition disintegrates. 

Danita

Sent from my iPhone

On Mar 1, 2011, at 8:22 PM, "Tim Jackson" <tjackson at baltimorecountymd.gov> wrote:

> I think there was concern that it wasn't as recoverable as EXT3. That and the fact that further development of reiserfs is uncertain being that the creator is in jail for life. It's no longer the default in SLES11 I believe.
> 
> 
>>>> "James Taylor"  03/01/11 9:54 PM >>>
> I'm a little surprised that there has been no mention of using Reiser file system.
> It is fast, handles large numbers of small files with out having to set any special switches, and doesn't have the annoying tendency to insist on doing and fsck at the worst possible times.
> 
> I use it exclusively for non-OES GroupWise installations, and it has been rock solid, with no file system failures in any of my implementations.
> 
> -jt
> 
> 
> James Taylor
> 678-697-9420
> james.taylor at eastcobbgroup.com
> 
> 
> 
>>>> Robert Obrinsky  3/1/2011   08:24 PM >>> 
> Here's the link on Tim's assessment of file systems:
> 
> http://www.novell.com/support/php/search.do?cmd=displayKC&docType=kc&externalId=http--wwwnovellcom-communities-node-4415-groupwise-7-and-oes2sles10-file-systems&sliceId=&docTypeID=DT_ARTICLES_TIPS_1_1&dialogID=104460745&stateId=0%200%20209015604
> 
> The author is listed as timscotland, but as we all know, it is Tim Heywood.
> Robert Obrinsky President Robert Obrinsky Industries, LLC 1908 SE 45th 
> Avenue Portland OR 97215 503-719-4387 (Office) 203-273-7012 (Mobile)
> 
> On 3/1/2011 3:49 PM, Ian Blackwood wrote:
>> Hi Holly,
>> 
>> How are you going ? :-)
>> 
>> Tim Heywood wrote an excellent article on this (which I cannot find right now of course....). Really suggest you have a dig for that.
>> 
>> Not much has changed for EXT3 (that I know of) but NSS has had performance improvements since then.
>> 
>> Here is Novell's version http://wiki.novell.com/index.php/File_System_Primer
>> 
>> Note that without htrees, EXT3 does not handle more than about 5,000 files in a directory. Of course Novell says to NOT use Htrees with GroupWise.
>> 
>> So the question becomes - how many files live in your offiles folders ? Even though these only contain "attachments" and large emails (beyond 16K ???) you need to remember that every HTML email has text.html as an attachment and ALL incoming Internet email will have a MIME.822 attached as well.
>> 
>> If you have a current PO that is similar load then have a peek into files per folder on it.
>> 
>> Hey doesn't SLES 11 have EXT4 ? ;-)
>> 
>> Cheers
>> Ian Blackwood
>> 
>> 
>> 
>> 
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