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Adding another RAID 1 array on PERC S110
Hi
I need to add more storage to my Poweredge T320, which has a PERC S110 controller. I currently have two 1TB drives in RAID 1. I am looking to add more storage without any downtime. I was thinking of buying two 2TB drives and plugging them into the bays. Then putting them into a RAID 1 array, creating a virtual disk and then using that as the new file storage by copying all files over to the new RAID array.
Is it possible to have two RAID 1 arrays on the PERC S110 controller? Can I add 2TB disks, even though I am using 1TB currently? Is this the best way to add more storage without too much downtime?
THanks
The S110 should support drives larger than 2TB. Storage controllers that support drives larger than 2TB don't typically have a maximum supported drive size specification since it is theoretical. I don't think there are any drives approaching those limits. I would review the specifications in the manual to be certain.
You should avoid parity RAID levels on a controller without write cache. It will be very poor performance, and it will affect performance across the entire controller.
Daniel My
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Posted September 26th, 2019 15:00
Hello
Yes, you can add another RAID 1 with different size drives. I don't foresee any issues with your plan. You can find information on the storage controller in the manual on either the system or storage controller support page.
http://www.dell.com/storagecontrollermanuals/
Thanks