Virtual Cloud Blog

vSAN – Which driver ESXi host is using?

Mar 6, 2018PGArango1 CommentVMware, VMWare vSANdriver, ESXi, SDDC, VMware, vSAN

Hello all, Today, I’ll show you how to know which driver and version we are using in our ESXs. Connect to the ESXi using SSH. Run the following command to understand which driver host is using.

esxcli storage core adapter list

1	esxcli storage core adapter list

HBA Name Driver Link State UID Capabilities Description
-------- -------------- ---------- -------------- ------------ ----------------------------------------------------------
vmhba0 megaraid_perc9 link-n/a unknown.vmhba0 (0000:0x:xx.0) LSI / Symbios Logic PERC H730 Mini

HBA Name Driver Link State UID Capabilities Description

-------- -------------- ---------- -------------- ------------ ----------------------------------------------------------

vmhba0 megaraid_perc9 link-n/a unknown.vmhba0 (0000:0x:xx.0) LSI / Symbios Logic PERC H730 Mini

In our case, the host is using megaraid_perc9. This driver is not supported, so we need to disable […]

Zerto – Virtual Replication 6.0

Mar 5, 2018PGArangoZertoAlways-On, Automation, DisasterRecovery, Resilience, SDDC, Zerto

What is Zerto? Zerto provides enterprise-class disaster recovery and business continuity software specifically for virtualized data centers and cloud environments. In today’s always-connected world, businesses need to be available to their customers, prospects and employees 24/7/365. This new world order of uninterrupted technology is a non-negotiable business best practice. To experience downtime of any length […]

VMware Horizon 7- How to replace untrusted- invalid certificate

Feb 26, 2018PGArango1 CommentVmware Horizon 7Horizon, SSL, untrusted, untrusted certificate, vmware horizon

Hello all, Today, I’ll show you how to replate Horizon untrusted- invalid SSL certificate. From VMware Horizon admin console, Dashboard page, right upper corner, there is a square informing about the “System Health”. From here, we can idenfify problems in your infrastructure. In my home lab, I have installed 2 connection servers, and 1 security […]

ESXi – vSAN commands – vSAN Congestion

Feb 21, 2018PGArango1 CommentVMware, VMWare vSANcongestion, ESXi, LSOB, LSOM, vSAN, vSAN commands, vSAN Congestion

Hello all, This post explains and provide details about vSAN congestion Congestion is a flow control mechanism used by vSAN (congestion). and it occurs when the I/O rate of the lower layers of the storage subsystem fails to keep up with the I/O rate of the higher layers. Congestion is a feedback mechanism to reduce the […]

ESXi- vSAN command – VMware vSAN – CMMDS

Feb 21, 2018PGArango2 CommentsVMWare vSANCMMDS, virtual san, VMware, vSAN, vSAN command

Hello all, This post is related to the previous one vSAN commands – VMware vSAN – Part 1 Today, new ESXi vSAN commands will be explained for better vSAN understanding and it’s ESXi related which can be used for troubleshooting, but not in all cases. esxcli vsan storage list List storage disks claimed by vSAN.

~ # esxcli vsan storage list
naa.5000cca0310fxxxx
 Device: naa.5000cca0310fxxxx
 Display Name: naa.5000cca0310fxxxx
 Is SSD: true
 VSAN UUID: 5202288f-5789-4e4a-3a91-0036e789xxxx
 VSAN Disk Group UUID: 523c86ea-fe50-1e7f-4049-75bc2f3axxxx
 VSAN Disk Group Name: naa.55cd2e404c0dxxxx
 Used by this host: true
 In CMMDS: <span style="color: #000000;"><strong>true</strong></span>
 Checksum: 748541782027695xxxx
 Checksum OK: true

naa.5000cca0310fxxxx
 Device: naa.5000cca0310fxxxx
 Display Name: naa.5000cca0310fxxxx
 Is SSD: true
 VSAN UUID: 5204f75b-ce8f-1324-fbef-94908861xxxx
 VSAN Disk Group UUID: 523c86ea-fe50-1e7f-4049-75bc2f3axxxx
 VSAN Disk Group Name: naa.55cd2e404c0dxxxx
 Used by this host: true
 In CMMDS: <span style="color: #000000;"><strong>false</strong></span>
 Checksum: 831070650279256xxxx
 Checksum OK: true

~ # esxcli vsan storage list

naa.5000cca0310fxxxx

Device: naa.5000cca0310fxxxx

Display Name: naa.5000cca0310fxxxx

Is SSD: true

VSAN UUID: 5202288f-5789-4e4a-3a91-0036e789xxxx

VSAN Disk Group UUID: 523c86ea-fe50-1e7f-4049-75bc2f3axxxx

VSAN Disk Group Name: naa.55cd2e404c0dxxxx

Used by this host: true

In CMMDS: true

Checksum: 748541782027695xxxx

Checksum OK: true

naa.5000cca0310fxxxx

Device: naa.5000cca0310fxxxx

Display Name: naa.5000cca0310fxxxx

Is SSD: true

VSAN UUID: 5204f75b-ce8f-1324-fbef-94908861xxxx

VSAN Disk Group UUID: 523c86ea-fe50-1e7f-4049-75bc2f3axxxx

VSAN Disk Group Name: naa.55cd2e404c0dxxxx

Used by this host: true

In CMMDS: false

Checksum: 831070650279256xxxx

Checksum OK: true

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PowerShell – How to add a Computer into a specific Active Directory OU

Feb 15, 2018PGArango3 CommentsPowerShellActive Directory, OU, PowerShell, PS

Hello All, This is a basic PowerShell script to add a computer in a specific OU in our Active Directory. There are 3 pre-requisites: PowerShell needs to be installed in the server. PowerShell needs to be executed as Administrator. The AD account you use should have enougt privielges to add compoters within the OU. Set-Executionpolicy […]

vSAN Troubleshooting Commands

Feb 12, 2018PGArango3 CommentsVMWare vSANClomRebalanceThreshold, ESX, MaxNumResyncCopyInFlight, PauseAllResync, SDS, VMware, vSAN, vSAN command

Hello all, This post will be mainly focused on vSAN commands at ESX level, so please use these commands under your responsability. I kindly recommend you to raise a VMware service request in case of doubts, issues or problems. When a hardware device, host, or network fails, or if a host is placed into maintenance mode, […]

RVC – vSAN commands – VMware vSAN – Part 1

Feb 10, 2018PGArango1 CommentVMWare vSANRVC, VMware, vSAN, vSAN commands

Hello all, Today, I’m going to show the most used vSAN commands I use, on a daily basis, for troubleshooting, for performance, etc….Please use these commands carefully, under your responsibility. To use these commands, you need to log in in the vCenter RVC console (a previous post was created to have RVC access and the […]

RVC – How to connect RVC vSAN? – VMware vSAN

Feb 9, 2018PGArangoVMWare vSANRVC, RVC command, VMware, vSAN, vSAN commands

Hello All, This is my first vSAN post so first of all, I hope you have same basic knowledge about it. vSAN is a “Software-Defined-Storage” (in advance – SDS). This terminology is not new, and it has been used for some time (for the last 4 years – I think). vSAN is a VMWare product […]