Mix HDD and SSD in same RAID 1 array

Question

I have a Dell Poweredge R410 with Perc H200 controller.

I would like to upgrade my 15k RPM arrays with SSD. Both disks are SAS 6Gbps.

Will it work if I remove 1 of the 2 disks, replace by the SSD, wait for sync then replace the other one ?
HDD=600GB, SSD=800GB or 400GB. If the HDD only has 100GB used, will the controller by smart enough and allow the sync with a 400GB SDD ?

Community · Accepted Answer · 2017-04-13 12:14:23Z

5

You cannot mix drive types in the same array group on PERC/LSI/HP hardware RAID controllers.

This also applies to mixing SATA, SAS and SSD.

"Mixing SAS and SATA drives within a virtual disk is not supported. Also, mixing hard drives and SSDs within a virtual disk is not supported."

CommunityBot

1

answered Feb 17, 2016 at 16:51

ewwhite

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You can't mix SATA and SAS but if both are SAS then it should work. You definately can't use a smaller drive though.
– JamesRyan
Feb 17, 2016 at 17:17
1

So... you say it should work, @ewwhite says it doesn't.
– Bastien974
Feb 17, 2016 at 17:25
2

No, SAS SSD and SAS disk won't work together.
– ewwhite
Feb 17, 2016 at 17:25
1

Thanks. From the H200 manual : google.ca/… "SAS, SATA or SSD physical disks cannot be used in the same virtual disk."
– Bastien974
Feb 17, 2016 at 17:34

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