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by vetinari
2250 days ago
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It depends only on whether you can afford to lose the data. I'm using two SATA SSDs in md RAID0 for VMs on my desktop (where each VM gets its own LV). Dangerous thing, but if one of them fails, nothing happens, I will shrug and reinstall. |
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You can take as an example the Recovery Point Objective and Recovery Time Objective terms used on disaster recovery. Depending on: a) how often you do backups, b) how many data are you backing up, and c) how fast are your network and transfer medium, you can calculate how much data you may lose in case of failure and how much time you'll use on recovery.