Re: New Server Hardware

mdir has the issue of not being indexed. Opening a large mailbox with 
several thousands of messages may take a while, it all depends on the 
filesystem. All other operations are very fast. And it's very handy for 
incremental backups.

mbox is indexed. All operations are usually very fast, except compacting 
large mailboxes after delete.

mslc comes in-between, and I believe it does not have any real shortcoming.

*Nicolas Hatier, ing.* <[email protected] 
<mailto:[email protected]>>
Niversoft idées logicielles - http://www.niversoft.com



On 2016-07-21 17:10, Ana Guillen wrote:
> Nicolas
>
> Which one would you consider be best for larger accounts over 5gigs, to be able to search, load , move and delete emails? mdir or mslc
>
> -----Mensaje original-----
> De: CommuniGate Pro Discussions [mailto:[email protected]] En nombre de Karl Zander
> Enviado el: jueves, 21 de julio de 2016 7:37
> Para: CommuniGate Pro Discussions <[email protected]>
> Asunto: Re: New Server Hardware
>
> Mostly mbox with indexing enabled.  Mailboxes are very large with some over 10 G.  I limit each folder to 2 G.
>
> I forget about the mslc format.  Have to check that out.
>
> --Karl
>
>
> On Wed, 20 Jul 2016 18:02:25 -0400
>   Nicolas Hatier <[email protected]> wrote:
>> Are your mailboxes in mbox format? Are those mailboxes quite big (500Mb+)?
>>
>> You may benefit converting them to the mslc format.
>> Mdir would be good too for deletes, but I would test the initial mailbox open performance before converting everything.
>>
>> *Nicolas Hatier, ing.* <[email protected] <mailto:[email protected]>>
>> Niversoft idées logicielles - http://www.niversoft.com
>>
>>
>>
>> On 2016-07-20 16:03, Karl Zander wrote:
>>> Looking at getting new hardware for our CGP server.   We have about 45 accounts mostly using Outlook with the MAPI connector.
>>>
>>> The biggest issue we are looking to address is performance drops when someone deletes or moves a large number of messages through Outlook.  The server is barely useful if someone deletes several hundred messages at once like when emptying Trash.
>>>
>>> Current server has 8 GB RAM.  3 x 250 GB drives in RAID 5.  (I think they are 10,000 RPM drives.)  Server runs Linux (Gentoo Linux) with a 4.1.2 kernel.  File system is ReiserFS.  Dual Xeon 1.86 Ghz CPUs
>>>
>>>
>>> Plan to go to 16 GB RAM.  Quad CPU.  Staying with Gentoo Linux.
>>>
>>> What are people using for disk drives and file systems?
>>>
>>> --Karl
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