3 ms·
Absolutely, you want RAID + backup, not one or the other. 50TB at 200MB/s is about 72h. Doesn't seem to be a particularly problematic rebuild time (and that's
by cm2187 4y ago
Absolutely, you want RAID + backup, not one or the other.
50TB at 200MB/s is about 72h. Doesn't seem to be a particularly problematic rebuild time (and that's assuming 100% filled). Of course you need to do regular data scrubbing. If your rebuild is the first time the data is being read in 5y, that might not go so well.
- sn0wf1re 4y ago> 50TB at 200MB/s is about 72h. Assuming the device is offline for users during that time, otherwise there may be reduced throughput.
- sroussey 4y agoYes, and this can be quite painful. If you have standby sets (like a read replica of a db that can take over for master, or a DR site), you can switch temporarily. It’s good to know what throughput you have under load for this reason among others. Also, you can slow or pause some RAID during peak hours.
- cm2187 4y agoBut if we are talking about a NAS, hopefully you also have SSD caching which should reduce a lot the workload on your disks.