I work with one of the biggest hosting companies on the planet. I got a dedicated server with hardware RAID 1 and two SAS 15k disks. I asked my hosting company if they could replace SAS with much bigger SATA drives as I need space on this machine, I do not need speed. They said that they do not do SATA only SAS and SSD and that they do not do replacements with bigger drives as this is not safe.
Is replacing RAID 1 drives with bigger drives to create bigger volumes (using MegaCli -LdExpansion command) something that would be considered wrong on professional environments? Is that a common\standard practice to not do that? Is is really that risky to do so?
Why would they not do SATA drives. Is it considered wrong on professional environments? Are there any reasons to not use SATA at all? (controller allows it; the manual says 'Each port on the SAS RAID controller supports SAS devices, SATA II devices, or both')
The controller is LSI MegaRAID 1078
Just to clarify my question is: Is it considered unprofessional to use SATA or replace RAID 1 drives with bigger drives on dedicated servers?