The disk space used during the upgrade process depends on how the hypervisor internally handles the disk lifecycle for an instance.
The following table shows Ribbon's recommendation for extra disk space for different flavors of the SBC SWe, PSX, and EMS:
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Table
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Disk Space Requirements
Flavor
Extra* Disk Space
(in GB)
S-SBC
80
M-SBC
80
SBC-CONFIG
80
PSX-M
360
PSX-S
360
PSX-Test
360
EMS_SA
150
Info
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Note
*Extra disk space applicable only during the upgrade process, (in addition to the disk space requirement for the instance) is only applicable during the upgrade process.
Total disk space requirement during upgrade = Disk Space for the upgraded instance + extra disk space required only during upgrade