Category Archives: Storage

Fast migration (conversion) VMs between hypervisors by NetApp Shift.

NetApp created a  Project Shift which allows customers to change the virtualization platform their VMs run on without migrating any data (of course VMs have to be located on NetApp storage). Shift currently supports Physical to Virtual (P2V) and Virtual to Physical (V2P) but also Virtual to Virtual (V2V) migrations between Citrix XenServer, Microsoft Hyper-V and VMware ESXi.… Read More »

Failed to promote replica devices on NetApp cluster mode.

Recently my customer as a standard procedure wanted to check if SRM works well. Unfortunately, they have got problem during come back to the DC with the error: Error - Failed to promote replica devices. Failed to promote replica device '//netapp184/vmware_55/lun_repl'. SRA command 'failover' failed for device '//netapp184/vmware_55/lun_repl'. Failed to map the SAN device on an igroup of… Read More »

NetApp Flash Accel for VMware

In this article I will describe NetApp Flash Accel which makes server-side flash storage available as cache for applications that read from and write to NetApp back-end storage. In a Flash Accel-enabled system, applications write to cache as well as to back-end storage, so that future application reads can be serviced locally from cache. Flash Accel software runs… Read More »