Haven't used Areca in a very long time, but with raid controllers the rule is to use it in order to take advantage of the cache.
The performance gains will be more than significant, especially for writes.
hth
--
Sent from the Delta quadrant using Borg technology!
Nux!
www.nux.ro
----- Original Message -----
> From: "Peter Peltonen" <peter.peltonen@xxxxxxxxx>
> To: "CentOS mailing list" <centos@xxxxxxxxxx>
> Sent: Friday, 20 January, 2017 17:31:56
> Subject: CentOS 7 and Areca ARC-1883I SAS controller: JBOD or not to JBOD?
> Hi,
>
> Does anyone have experiences about ARC-1883I SAS controller with CentOS7?
>
> I am planning to have RAID1 setup and I am wondering if I should use
> the controller's RAID functionality which has 2GB cache or should I go
> with JBOD + Linux software RAID?
>
> The disks I am going to use are 6TB Seagate Enterprise ST6000NM0034
> 7200rpm SAS/12Gbit 128 MB
>
> If hardware RAID is preferred, the controller's cache could be updated
> to 4GB and I wonder how much performance gain this would give me?
>
> Thanks!
> Peter
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