Can multiple DCOs be configured for different mirror disks?

stephen.xu · Created May 30, 2020 07:40:01

Hello, Werido!

Please refer to the following table lists the DCO disk size requirements for mirrored volumes.

DCO	Source DCO Disk	The source volume and the source volume must be from the same RAID group. The format is "Do not reserve data".
	Mirror DCO Disk	The source DCO disk and the mirror volume must be in the same RAID group, but cannot be in the same array. The format is "Do not reserve data".
	Specifications	If the total capacity of mirrored data volumes in the disk group is less than 6 TB, the minimum DCO capacity is 1 GB. If the total capacity of mirrored data volumes in the disk group is greater than 6 TB and less than 64 TB, the minimum DCO capacity is 10 GB. If the total capacity of mirrored data volumes in the disk group is greater than 64 TB and less than 16 x 64 TB, the minimum DCO capacity is 160 GB. If the total capacity of mirrored data volumes in the disk group is greater than 64 TB and less than 64 TB, the minimum DCO capacity is 640 GB.
	Mapping	It is recommended that every six mirror groups in a disk group use one pair of DCO disks.

stephen.xu · Created May 30, 2020 07:40:01

Hello, Werido!

Please refer to the following table lists the DCO disk size requirements for mirrored volumes.

DCO	Source DCO Disk	The source volume and the source volume must be from the same RAID group. The format is "Do not reserve data".
	Mirror DCO Disk	The source DCO disk and the mirror volume must be in the same RAID group, but cannot be in the same array. The format is "Do not reserve data".
	Specifications	If the total capacity of mirrored data volumes in the disk group is less than 6 TB, the minimum DCO capacity is 1 GB. If the total capacity of mirrored data volumes in the disk group is greater than 6 TB and less than 64 TB, the minimum DCO capacity is 10 GB. If the total capacity of mirrored data volumes in the disk group is greater than 64 TB and less than 16 x 64 TB, the minimum DCO capacity is 160 GB. If the total capacity of mirrored data volumes in the disk group is greater than 64 TB and less than 64 TB, the minimum DCO capacity is 640 GB.
	Mapping	It is recommended that every six mirror groups in a disk group use one pair of DCO disks.

gisellecar · Created Jul 11, 2020 22:36:44

excellent