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August 22nd, 2024 09:59
Raid 0 - used raid disk space.
Hi, I have a Dell T630 with 5 sas disks
1 disk with 2 TB (1.8)
4 disks with 1 TB each (931 GB)
When I run raid 0 on all disks, the 2Tb disk only shows 931gb (used raid disk space).
Instead of having 5.5Tb I only have 4.6TB
Does anyone know how to solve this problem.
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Origin3k
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August 22nd, 2024 10:15
In such a setup the smallest disk is the base for the size.
What your looking for is to "concat" the disks to a larger one which IIRC isnt possible with a PERC or any HW HBA. I only used it ages ago with "software".
(edited)
DELL-Erman O
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August 22nd, 2024 14:24
Hi,
I totally agree with Joerg. RAID 0 works based on the smallest disk size. So, if you have a 931GB disk, all disks in the RAID 0 setup will be treated as 931GB, even if one is 2TB. The extra space on the 2TB disk is wasted. You could swap the 2TB disk for a 1TB one to make all disks the same size. Or, you could use the four 1TB disks in RAID 0 and use the 2TB disk separately for something else.