On 10/9/20 10:02 pm, Russell Coker via luv-main wrote:
I put a 1TB SATA disk in a Dell server with PERC RAID controller and configured that disk as a single virtual disk (IE the disk gets a RAID signature the PERC likes and is passed through to the OS). The disk when viewed on a regular SATA controller has 1953525168 sectors, when it goes through the PERC it has 1952448512 sectors, that is 525MB less space when going through the PERC! That's 1% of a 500G SSD.
0.1%
Is there any way to configure PERC to reduce it? Is using "HBA" mode worthwhile?
If you won't be using the hardware RAID anyway, go for it. It might even alleviate the need for the RAID controller cache battery. Cheers, Andrew -- mailto:andrew@sericyb.com.au Andrew Pam https://sericyb.com.au/ Manager, Serious Cybernetics https://glasswings.com.au/ Partner, Glass Wings