2 farklı storage üzerinde present edilmiş 2 farklı Lun’un birinde 4 Active I/O gözükürken bir diğerinde neden 2 adet Active IO göründüğünü inceleyeceğiz.
Aşağıda görmüş olduğunuz 2 Lun’da Round Robin olarak ayarlanmıştır ve Storage Controller’da Active Active olarak çalışmaktadır.
Şimdi neden birinde 4 Active IO görünürken diğerinde 2 Adet Active IO göründüğü sorusunun cevabı Storage’lardan biri ALL SAN Array Configuration olarak ayarlandığı için 4 Active IO görünüyor diğeri ise Non-ASA olarak ayarlandığı için 2 Active (I/O) 2 Active olarak görünüyor.
Non-ASA olarak present edilen Lunlar 2 adet kendilerine 1. Öncelikli yol olarak belirler ve 2 adet de 2. öncelikli yol belirler. 2 aktif ve 2 pasif target görünmesinin nedeni de budur.
Aklınıza takılan bir konu varsa aşağıya yorum olarak yazabilirsiniz.
Localcli storage nmp path list
fc.20000025b52b200f:20000025b52a200e-fc.500…68100095b7:500…68101695b7-naa.600…68108104aa680000000000000f:
Runtime Name: vmhba2:C0:T49:L1
Device: naa.600…68108104aa680000000000000f
Device Display Name: IBM Fibre Channel Disk (naa.600…68108104aa680000000000000f)
Group State: active unoptimized
Array Priority: 0
Storage Array Type Path Config: {TPG_id=17,TPG_state=ANO,RTP_id=3713,RTP_health=UP}
Path Selection Policy Path Config: PSP VMW_PSP_RR does not support path configuration.
Runtime Name: vmhba2:C0:T48:L1
Device: naa.600…68108104aa680000000000000f
Device Display Name: IBM Fibre Channel Disk (naa.600…68108104aa680000000000000f)
Group State: active
Array Priority: 0
Storage Array Type Path Config: {TPG_id=16,TPG_state=AO,RTP_id=1665,RTP_health=UP}
Path Selection Policy Path Config: PSP VMW_PSP_RR does not support path configuration.
fc.20000025b52b200f:20000025b52a200f-fc.500…681000954d:500…681015954d-naa.600…68108104aa680000000000000f:
Runtime Name: vmhba1:C0:T65:L1
Device: naa.600…68108104aa680000000000000f
Device Display Name: IBM Fibre Channel Disk (naa.600…68108104aa680000000000000f)
Group State: active
Array Priority: 0
Storage Array Type Path Config: {TPG_id=16,TPG_state=AO,RTP_id=1664,RTP_health=UP}
Path Selection Policy Path Config: PSP VMW_PSP_RR does not support path configuration.
fc.20000025b52b200f:20000025b52a200f-fc.500…68100095b7:500…68101595b7-naa.600…68108104aa680000000000000f:
Runtime Name: vmhba1:C0:T97:L1
Device: naa.600…68108104aa680000000000000f
Device Display Name: IBM Fibre Channel Disk (naa.600…68108104aa680000000000000f)
Group State: active unoptimized
Array Priority: 0
Storage Array Type Path Config: {TPG_id=17,TPG_state=ANO,RTP_id=3712,RTP_health=UP}
Path Selection Policy Path Config: PSP VMW_PSP_RR does not support path configuration.
Referans Dokümanlar
https://docs.netapp.com/us-en/ontap-sanhost/pdfs/sidebar/ESXi.pdf sayfa 3-4-5-6
ALUA parameters in the output of ESX/ESXi 4.x and ESXi 5.x commands https://kb.vmware.com/s/article/1022030?lang=en_US
Configuration Settings for ALUA Devices https://blogs.vmware.com/vsphere/2012/02/configuration-settings-for-alua-devices.html
