Question about ASM a Failgroups

Hello everyone,

I have an ASM Diskgroup that is short on space. The diskgroup has NORMAL redundancy and three groups of failure with two disks of each. All the disks are the same size (50G).
Now the diskgroup is almost full and I have to add space. And I have two raw devices of 36G each available.

I read that recommmends Oracle for all groups of the failure of the same size. So use it means I can't do these two free disks for ASM?
Because if I create another Failgroup with them, the Group would have a different size than the others. And if I add them to a group (if it is possible at all), this group would also have a different size.

Thanks for your thoughts.

Mario

The Diskgroup has three default groups: FG1, FG2, FG3.

in this case you have 3 discs 2 you need to add the disc in each behalf can be 36 GB but all should have the same size disc.

Seems clear, but on the other hand that means once I start with 50G disks, I always have to use 50 G discs in the future. What happens if they are out of stock etc. ?

same size of DISKGROUP not discs. so 3 disc may be 36 GB each.

Tags: Database

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