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ryanmaves

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SATA vs SAS for new server

My question is about a new server and whether or not it is going to matter much if I use two SATA 3.5'' hard drives to host the OS or if I should use SAS?

The OS will sit on two 3.5'' drives using RAID 1. Then actual data will not reside on the same drives, there is a disk array which is connected via a controller card. The disk array uses all SAS drives and RAID5.

So again my question/concern is can I save some money and buy SATA HDD's for a RAID 1 setup that will host only the OS without sacrificing performance at all?

My understanding is that performance won't be affected if SATA drives are used because the actual data being shared is all on SAS drives on a disk array.

Please educate me.
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dec0mpile
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ryanmaves

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Thank you, this is exactly the answers I was looking for here. Definitely don't want to sacrifice performance at all, so I'm going to go all SAS drives even for the OS.