You can use the Cyber Recovery connector CLI to view the performance of snapshot replication and restore operations.
You can run the drc perf command during snapshot replication or failback operations to display logical and physical throughput between the Cyber Recovery connector and the cloud file system during these two operations. The CLI also displays how much time it takes to perform snapshot replication or failback operation.
drc perf
usage:
-h, --help
--output-format OUTPUT_FORMAT
| Option | Description |
|---|---|
| -h, --help |
Displays help information about the performance check CLI. |
| --output-format OUTPUT_FORMAT |
Choose the output format (optional):
|
When you run the drc perf -h command with the help option, the output displays the following information to describe the results.
| Category | Description |
|---|---|
| Throughput |
|
| Physical throughput |
The rate at which compressed data is successfully transferred between the Cyber Recovery connector and a cloud file system during snapshot replication, measured in megabits per second (Mbps). |
| Logical throughput |
The rate at which raw data is successfully transferred between a Cyber Recovery connector and a cloud file system during snapshot replication, measured in megabits per second (Mbps). |
| Connector Time Taken (Percentage) |
|
| Read |
Percentage of time spent by copy sectors in Read operations. |
| Compress |
Percentage of time spent by copy sectors in compress operations. |
| Write |
Percentage of time spent by copy sectors in write-wait operations. |
| SCFS Time Taken (Percentage) | |
| Write |
Percentage of time spent by the cloud file system in write operations. |
| Uncompress |
Percentage of time spent by the cloud file system in uncompress operations. |
| Category | Description |
|---|---|
| Throughput |
|
| Physical |
The rate at which compressed data is successfully transferred between the cloud file system and the protected site during a restore operation, measured in megabits per second (Mbps). |
| Logical |
The rate at which raw data is successfully transferred between the cloud file system and the protected site during a restore operation, measured megabits per second (Mbps). |
| Connector Time Taken (Percentage) |
|
| Read |
Percentage of time spent by copy sectors in Read operations. |
| Uncompress |
Percentage of time spent by copy sectors in uncompress operations |
| Write |
Percentage of time spent by copy sectors in write-wait operations. |
| SCFS Time Taken | |
| Read | Percentage of time spent by the cloud file system in read operations. |
| Compress | Percentage of time spent by the cloud file system in compress operations. |
For example, if you run the drc perf command during snapshot replication, you see the following output:
# drc perf
2022-09-21T20:09:35.054934 UTC
----------------------------- Backup ------------------------------ ----------------------------- Restore -----------------------------
Throughput (Mbps) Connector Time Taken (%) SCFS Time Taken (%) |Throughput (Mbps) Connector Time Taken (%) SCFS Time Taken (%)
Physical Logical Read Compress Write Write Uncompress| Physical Logical Read Uncompress Write Read Compress
------------------- -------------------------- --------------------|------------------- -------------------------- --------------------
-- -- -- -- -- -- --| -- -- -- -- -- -- --
-- -- -- -- -- -- --| -- -- -- -- -- -- --
-- -- -- -- -- -- --| -- -- -- -- -- -- --
19.1 26.8 42.9 11.7 0.0 0.9 0.1| -- -- -- -- -- -- --
-- -- -- -- -- -- --| -- -- -- -- -- -- --
24.8 26.8 1.6 0.1 0.0 0.3 0.1| -- -- -- -- -- -- --
-- -- -- -- -- -- --| -- -- -- -- -- -- --
53.5 78.9 4.4 0.2 0.0 0.1 0.2| -- -- -- -- -- -- --
64.2 115.8 16.6 0.6 0.0 0.1 0.3| -- -- -- -- -- -- --
1.4 154.4 23.7 0.5 0.0 0.2 0.4| -- -- -- -- -- -- --
0.1 206.4 28.4 0.1 0.0 0.2 0.5| -- -- -- -- -- -- --
For example, if you run the drc perf command during a failback operation, you see something like this:
# drc perf
2022-08-25T07:55:45.050222 UTC
----------------------------- Backup ------------------------------ ----------------------------- Restore -----------------------------
Throughput (Mbps) Connector Time Taken (%) SCFS Time Taken (%) |Throughput (Mbps) Connector Time Taken (%) SCFS Time Taken (%)
Physical Logical Read Compress Write Write Uncompress| Physical Logical Read Uncompress Write Read Compress
------------------- -------------------------- --------------------|------------------- -------------------------- --------------------
-- -- -- -- -- -- --| -- -- -- -- -- -- --
-- -- -- -- -- -- --| -- -- -- -- -- -- --
-- -- -- -- -- -- --| -- -- -- -- -- -- --
-- -- -- -- -- -- --| 0.4 3.4 53.6 0.4 46.3 4.0 0.1
-- -- -- -- -- -- --| -- -- -- -- -- -- --
When you run the drc perf command, some of the rows might display empty. The reason for this is because the CLI samples the statistics in five second intervals, and during this five second window it is possible that the statistics are not updated (you see no numbers), and for a subsequent 5-sec window the statistics are updated (you see the numbers).
