Hadi Moshayedi cd7412540f Rhizome: support per-volume I/O bandwidth limits for ubiblk ...

This is done by adding the following to the storage systemd units:

```
IOReadBandwidthMax=/dev/disk/by-id/disk-id $read_limit_bytes
IOWriteBandwidthMax=/dev/disk/by-id/disk-id $write_limit_bytes
```

If the disk file resides on a file system backedn by an md device,
`disk-id` refers to the persistent ID of the md device. Otherwise, it
refers to the ID of the underlying physical disk.

2025-06-25 12:08:11 -07:00

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