Re: {* 05.00 *}Re: Re: Desperate with 870 QVO and ZFS

From: <egoitz_at_ramattack.net>
Date: Thu, 07 Apr 2022 08:59:50 UTC
Hi Mike! 

Thanks a lot for your comment. I see. As said before, we didn't really
enable compression because we just keep the config as FreeBSD leaves by
default. Apart from that, having tons of disk space and well... for
avoiding the load of compress/decompress... The main reason was it was
not enabled by default really and not to have seen a real reason for
it.... was not more than that.... 

I appreciate your comments really :) 

Cheers,

El 2022-04-06 22:43, mike tancsa escribió:

> ATENCION
> ATENCION
> ATENCION!!! Este correo se ha enviado desde fuera de la organizacion. No pinche en los enlaces ni abra los adjuntos a no ser que reconozca el remitente y sepa que el contenido es seguro.
> 
> On 4/6/2022 4:18 PM, Bob Friesenhahn wrote: On Wed, 6 Apr 2022, egoitz@ramattack.net wrote: 
> WE DON'T USE COMPRESSION AS IT'S NOT SET BY DEFAULT. SOME PEOPLE SAY YOU SHOULD HAVE IT ENABLED.... BUT.... JUST FOR AVOID HAVING SOME DATA COMPRESSED SOME OTHER NOT (IN CASE YOU ENABLE AND LATER DISABLE) AND FINALLY FOR AVOID ACCESSING TO INFORMATION WITH DIFFERENT CPU COSTS OF HANDLING... WE HAVE NOT TOUCHED COMPRESSION....

There seems to be a problem with your caps-lock key.

Since it seems that you said that you are using maildir for your mail
server, it is likely very useful if you do enable even rather mild
compression (e.g. lz4) since this will reduce the write work-load and
even short files will be stored more efficiently.
 FYI, a couple of our big zfs  mailspools sees a 1.24x and 1.23x
compress ratio with lz4.  We use Maildir format as well.  They are not
RELENG_13 so not sure how zstd would fair.

    ---Mike