Administrator Guide

Table 42. ME4 Series system configuration limits (continued)
Feature Value
● ADAPT:12/128
Maximum dedicated spares per linear disk group 4
Maximum global spares per system 64
Maximum ADAPT groups per controller module 4
Maximum ADAPT single disk size 64 TiB
Maximum ADAPT disk group size 1 PiB
ADAPT stripe width 8+2
Volumes, initiators, hosts, and mapping
Maximum virtual volumes per system 1024
Maximum linear volumes per system 512 (recommended)
Maximum volume size of a virtual volume 128 TiB (approximately 140 TB)
Maximum volume size of a linear volume Equal to the maximum size limit of the disk group
Maximum mappable volumes (LUNs) per disk group 128
Maximum mappable virtual volumes (LUNs) per pool 512
Maximum mappable linear volumes (LUNs) per pool 128
Maximum mappable volumes (LUNs) per controller module 512
Maximum virtual volumes per pool 1024 (512 base volumes and 512 snapshots)
Maximum linear volumes per pool 1024
Maximum virtual volumes per volume group 1024
Maximum volume groups per controller module 256
Maximum volumes per replication volume group 16
Maximum volumes per host port 1024 (Microsoft Windows limits access to 256)
Maximum initiators per volume 128
Maximum initiators per host port 1024
Maximum initiators per controller module 4096
Maximum initiators per host 128
Maximum hosts per host group 256
Maximum host groups per system 32
Maximum commands per LUN (preferred path) 4096
Maximum queue depth per host port 1024
Maximum host-port link speed
● 16 Gb FC with capable, qualified SFP+ transceiver
● 10 GbE iSCSI with capable, qualified SFP + transceiver (CNC
only)
● 12 Gb SAS
Supported FC/iSCSI module host-port configurations, per
controller module
● 4 ports FC
● 4 ports iSCSI
● 2 ports FC and 2 ports iSCSI
Virtual volume snapshots
Maximum snapshots per pool 512
180 System configuration limits