Adaptec 2120S FreeBSD 4.11 poor performance

[Anton Turygin]

On Fri, 6 May 2005, Herve Boulouis wrote:

> Le 06/05/2005  13:09, Anton Turygin a Иcrit:
>>
>> The speed in the array doesn't raise over 7 MB/s.
>> Can anyone help me to figure out?
>> Thanks in advance.
>
> A common thing to do is to disable the read cache and only enable
> write caching for your container.
>
> CLI > open aac0
> Executing: open "aac0"
>
> AAC0> container show cache 0
> Executing: container show cache 0
>
> Global Container Read Cache Size  : 0
> Global Container Write Cache Size : 16203776
>
> Read Cache Setting        : DISABLE
> Write Cache Setting       : ENABLE ALWAYS
> Write Cache Status        : Active, not protected, battery not present
>
> Hope this helps.
>

Thanks, it helped a bit ;-)

Now I have:

_container > show cache 0
Executing: container show cache 0

Global Container Read Cache Size  : 0
Global Container Write Cache Size : 16203776

Read Cache Setting        : ENABLE
Write Cache Setting       : ENABLE ALWAYS
Write Cache Status        : Active, not protected, battery not present


The array speed is up to 35 MB/s (it is still not enough).

The only thing - I didn't have succes in turning the Read Cache off.

-- 
RAZ-UANIC
RAZ-RIPE
Technological Systems CJVC
System Administrator