Rick Crisci demonstrates configuring bus sharing and multiwriter locking for virtual disks that are accessed by more than one VM.
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- [Instructor] In this video, I'll demonstrate…how to enable simultaneous writing to virtual disks…using the multiwriter flag.…Now, by default, virtual machines…can't open the same virtual disk.…If you have two virtual machines, they won't be able…to open the same virtual disk file as each other.…And this prevents inadvertent changes being made…by one virtual machine to another virtual machine's disk.…It also helps protect against corruption of data.…
However, with fault tolerance, virtual machines actually…need the ability to simultaneously access a VM decay file.…And so we have this multiwriter option…that can allow clustering type applications…to write to the same virtual disk.…In order to do this, we need to turn off the protection…that only allows a single virtual machine…to access a virtual disk.…Now we want to use caution when we do this.…We want to be careful, and we want to make sure…we really understand our use case.…
And it's never a bad idea to talk to VMware support…when you're modifying some advanced settings like these.…
Note: This course maps to the Configure and Administer Advanced vSphere 6.x Storage domain from the VCP6-DCV exam blueprint. Learn more about the exam objectives at VMware's site.
- Comparing VMFS (Virtual Machine File System) and NFS (Network File System)
- Working with Fibre Channel and FCoE
- Configuring iSCSI storage and authentication
- Working with block storage and VMFS
- Managing storage filters
- Using vSphere storage APIs
- Sharing virtual disks
- Configuring NFS storage
- Using vSphere Virtual Volumes
- Configuring VSAN data stores
- Configuring SIOC data stores
Skill Level Intermediate
Up and Running with VMware vSphere 6with Brandon Neill1h 28m Intermediate
Configure and Manage VMware vSphere 6 Networkingwith Brandon Neill1h 33m Intermediate
Fundamentals of Cloud Data Storagewith Joseph Lowery1h 26m Intermediate
1. Storage Virtualization
Array thin provisioning1m 41s
2. Fibre Channel and FCoE
4. Working with Block Storage
5. Advanced Storage Concepts
7. Virtual Volumes (VVOL)
8. Virtual SAN (VSAN)
9. Storage I/O Control (SIOC)
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