Replacing VSAN disks to upgrade VSAN capacity

[Gabrie1]

Hi

Host with 1 flash, 5 magnetic disks all combined into VSAN and the host has no more room for extra harddisks. Is the SUPPORTED way to upgrade the capacity: remove lower capacity disk from the diskgroup, evacuate data, replace with higher capacity disk, wait for magic, replace next lower capacity disk, etc, etc?

When I insert the higher capacity disk and add it to the disk group, is there a process I need to manually trigger to spread the data to the new disk?

How can I monitor progress of evacuating data from a disk? And how can I monitor spreading data to the new disk?

Gabrie

[zdickinson · Accepted solution]

Good morning, I believe you have the process correct.  Remove the drive from the web client, physically remove the drive, insert the new drive.  If vSAN is set to auto claim disks, that should be it.  If not you have to manually add claim the disk.  As you noted, waiting for data to be moved each time before moving on.

If you have vSAN 6, you can run a pro-active rebalance to redistribute the data.  http://cormachogan.com/2015/04/22/vsan-6-0-part-9-proactive-re-balance/

Thank you, Zach.

[Gabrie1]

Thanks!