こんな感じで必要な情報だけ整えてオブジェクトのプロパティに入れることができました。
Import-Module 'C:\Program Files\DataCore\SANsymphony\DataCore.Executive.Cmdlets.dll' -WarningAction silentlyContinue
Connect-DcsServer
$iSCSIActivePorts = @()
$iSCSIPorts = Get-DcsPort -Machine (hostname) -Type "iSCSI"|sort Caption
$iSCSIPorts | ForEach-Object {
If ($_.ServerPortProperties.Active -eq $true){
$Server = ($_.HostId | Get-DcsServer).Caption
$Name=$_.caption
$Role=$_.Serverportproperties.Role
$Iqn=$_.PortName
$Ip = ($_.serverportproperties.iScsiPortalsConfig|select address).Address.ToString().Replace(':', '')
$Mac=$_.PhysicalName.Substring(4,17).Replace("-",":")
$iSCSIActivePorts += [pscustomobject]@{Name=$Name; Server = $Server; Role=$Role; IQN=$Iqn; IP=$Ip; Mac=$Mac}
}
}
$iSCSIActivePorts|ft
Disconnect-DcsServer
出力結果や使い方の例（この環境ひどいｗ）
$iSCSIActivePorts|ft
Server Name Role IQN IP Mac
------ ---- ---- --- -- ---
DCS1 ClusterIP None iqn.2000-08.com.datacore:dcs1-8 10.10.107.3 90:1B:0E:64:5...
DCS1 DCS1-FE1 Frontend iqn.2000-08.com.datacore:dcs1-5 10.10.200.10 00:0E:1E:D3:D...
DCS1 DCS1-iSCSIMR1 Mirror iqn.2000-08.com.datacore:dcs1-mr1 172.16.0.1 00:15:5D:6A:0...
DCS1 MGMT None iqn.2000-08.com.datacore:dcs1-4 90:1B:0E:64:5...
DCS1 NEW BE None iqn.2000-08.com.datacore:dcs1-18 00:15:5D:6A:0...
DCS1 NEW FE Frontend iqn.2000-08.com.datacore:dcs1-newfe 10.10.100.1 00:15:5D:6A:0...
DCS1 NEW FE2 Frontend iqn.2000-08.com.datacore:dcs1-20 10.10.100.11 00:15:5D:6A:0...
DCS1 NEW FE3 Frontend iqn.2000-08.com.datacore:dcs1-21 10.10.100.21 00:15:5D:6A:0...
DCS1 NEW FE4 Frontend iqn.2000-08.com.datacore:dcs1-22 10.10.100.31 00:15:5D:6A:0...
DCS1 NEW FE5 Frontend iqn.2000-08.com.datacore:dcs1-23 10.10.100.41 00:15:5D:6A:0...
DCS1 NEW FE6 Frontend iqn.2000-08.com.datacore:dcs1-24 10.10.100.51 00:15:5D:6A:0...
DCS1 NEW FE7 Frontend iqn.2000-08.com.datacore:dcs1-fe7 10.10.100.61 00:15:5D:6A:0...
DCS1 NFS None iqn.2000-08.com.datacore:dcs1-nfs1 10.10.200.1 00:0E:1E:D3:D...
DCS1 Server iSCSI Port 25 None iqn.2000-08.com.datacore:dcs1-25 00:15:5D:6A:0...
DCS1 Server iSCSI Port 26 None iqn.2000-08.com.datacore:dcs1-26 00:15:5D:6A:0...
DCS1 Server iSCSI Port 27 None iqn.2000-08.com.datacore:dcs1-27 00:15:5D:6A:0...
DCS1 Server iSCSI Port 29 Mirror iqn.2000-08.com.datacore:dcs1-mr2 172.16.0.254 00:15:5D:6A:0...
DCS1 Server iSCSI Port 30 Mirror iqn.2000-08.com.datacore:dcs1-mr3 1.2.3.4 00:15:5D:6A:0...
DCS1 Server iSCSI Port 9 None iqn.2000-08.com.datacore:dcs1-9 10.10.107.4 90:1B:0E:64:5...
#使い方の例
#ミラーポートのIPアドレスだけ一覧表示
$iSCSIActivePorts | Where-Object {$_.Role -eq "Mirror"} | ft IP
IP
--
172.16.0.1
172.16.0.254
1.2.3.4
#役割があるものだけ表示
$iSCSIActivePorts | Where-Object {$_.Role -ne "None"} | ft
Server Name Role IQN IP Mac
------ ---- ---- --- -- ---
DCS1 DCS1-FE1 Frontend iqn.2000-08.com.datacore:dcs1-5 10.10.200.10 00:0E:1E:D3:DB:69
DCS1 DCS1-iSCSIMR1 Mirror iqn.2000-08.com.datacore:dcs1-mr1 172.16.0.1 00:15:5D:6A:0B:0D
DCS1 NEW FE Frontend iqn.2000-08.com.datacore:dcs1-newfe 10.10.100.1 00:15:5D:6A:0B:0C
DCS1 NEW FE2 Frontend iqn.2000-08.com.datacore:dcs1-20 10.10.100.11 00:15:5D:6A:0B:0C
DCS1 NEW FE3 Frontend iqn.2000-08.com.datacore:dcs1-21 10.10.100.21 00:15:5D:6A:0B:0C
DCS1 NEW FE4 Frontend iqn.2000-08.com.datacore:dcs1-22 10.10.100.31 00:15:5D:6A:0B:0C
DCS1 NEW FE5 Frontend iqn.2000-08.com.datacore:dcs1-23 10.10.100.41 00:15:5D:6A:0B:0C
DCS1 NEW FE6 Frontend iqn.2000-08.com.datacore:dcs1-24 10.10.100.51 00:15:5D:6A:0B:0C
DCS1 NEW FE7 Frontend iqn.2000-08.com.datacore:dcs1-fe7 10.10.100.61 00:15:5D:6A:0B:0C
DCS1 Server iSCSI Port 29 Mirror iqn.2000-08.com.datacore:dcs1-mr2 172.16.0.254 00:15:5D:6A:0B:0D
DCS1 Server iSCSI Port 30 Mirror iqn.2000-08.com.datacore:dcs1-mr3 1.2.3.4 00:15:5D:6A:0B:16
参考にしたURL
https://qiita.com/sukakako/items/b9d4c10b75cf7c2fe965
https://docs.datacore.com/SSV-WebHelp/datacore_cmdlets_for_windows_powershell.htm