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10 PS Series Architecture: MPIO with Devices That Have Unequal Link Speeds | TR1105 v1
3.4 Connection Examples
Several examples of the number of connections created by the PS Series MPIO software are provided in
Table 1. Each example depicts a different size PS Series group size. Pool limits or large configuration limits
were not applied in these examples, nor do they depict mixed host interface configurations involving the
use of 10Gbps and 1Gbps interfaces on a single host.
The max/mem x max/vol settings information in Table 1 represents the maximum per member and per
volume iSCSI connection limits set in the PS Series MPIO software on the host.
Nomenclature:
2 x 6 represents 2 max connections / array member / volume, 6 max connections per volume
overall
4 x 12 represents 4 max connections / array member / volume, 12 max connections per volume
overall
#/Volume: Total number of iSCSI connections per volume
#/Member: Number of iSCSI connections per member
Table 1
1 Member
2 Member
3 Member
Max/mem x max/vol settings
2 x 6
4 x 12
2 x 6
4 x 12
2 x 6
4 x 12
Equal speeds between host and
array 1Gbps to 1Gbps with 2
HBAs / 4 array NICs
2/volume
2/member
2/volume
2/member
4/volume
2/member
4/ volume
2/member
6/ volume
2/member
6/ volume
2/member
Equal speeds between host and
array 10 Gbps to 10 Gbps with 2
HBAs / 2 array NICs
2/volume
2/member
2/volume
2/member
4/volume
2/member
4/volume
2/member
6/volume
2/member
6/volume
2/member
Unequal speeds 10G host HBA to
1Gbps array NIC with 2 HBAs / 4
array NICs
2/volume
2/member
4/volume
4/member
4/volume
2/member
8/volume
4/member
6/volume
2/member
12/volume
4/member
Unequal Speeds 1Gbps host HBA
to 10 Gbps array NIC with 4 HBAs
/ 2 array NICs
2/volume
2/member
4/volume
4/member
4/volume
2/member
8/volume
4/member
6/volume
2/member
12/volume
4/member