Several Questions

[Ivangelion]

1. What does the code "SPCSX" in Last Result mean?

2. Sometimes when using ExtremeSync Remote Service, if we altered the values of "Maximum listings to process in parallel" and "Maximum checksum requests to process in parallel", or added some folders to watch, then clicking "Apply", the program just hanged and was not responding. In Windows Services Manager, we saw that the status of ExtremeSync Remote Service was "Pausing" and couldn't do anything about it. Only if we opened Task Manager to manually kill "ExtremeSyncRemoteService.exe" process, then we can restart the program. what's wrong?

3. Following 2, When the local site is running a profile which status is "Waiting for remote listing (XXXs)", and if on the remote site the ExtremeSync Remote Service hangs and is killed then restarts, the local site will wait indefinitely. We must restart the SFFS service on the local site, then it can start to do sync jobs. Why is that?

4. What is the recommended values of "Maximum listings to process in parallel" and "Maximum checksum requests to process in parallel"? Our spec is 2 2.4Ghz CPUs and 4GB RAMs.

5. In the profile, there is a setting in "Files" tab: "Number of files to copy in parallel". Does this mean that we can open such many threads to simultaneously copy files? However, we had limited that one download/upload thread can only process about 2~4Mb/sec and set the parallel file processing number to be 10; so during copying, the network flow should have been 20~40Mb/sec. But the network flow was still 2~4Mb/sec. What exactly is the mechanism of parallel file copying?

6. What is "No full copying if service unavailable" under "Use Partial File Updating" in Special tab?

7. When remote site is unconnected, the local site running SFFS will show "Waiting for Availability". But after the remote site is back online, it still showed "Waiting for availability" and will not start to sync files. Why?

8. I really hope you can release the explanations of processing codes under the "Last Result" area some day.

Sorry to constantly bother you. Thank you so much.

[superflexible]

1. What does the code "SPCSX" in Last Result mean?

It means that job is busy during the copying phase, but it is unclear why there is no detailed progress information. Usually this should be shown only for a time and then regular progress information should appear again. If that does not happen, you should run the job manually in the foreground so you can watch it, or you can use the foreground scheduler for the same purpose. You could also turn on "With Timing Info" for the log files and study them.

2. Sometimes when using ExtremeSync Remote Service, if we altered the values of "Maximum listings to process in parallel" and "Maximum checksum requests to process in parallel", or added some folders to watch, then clicking "Apply", the program just hanged and was not responding. In Windows Services Manager, we saw that the status of ExtremeSync Remote Service was "Pausing" and couldn't do anything about it. Only if we opened Task Manager to manually kill "ExtremeSyncRemoteService.exe" process, then we can restart the program. what's wrong?

Nothing. It can happen, especially if the service was processing some request. Don't play with the settings too much. Make sure you have the latest ExtremeSync Remote Service.

3. Following 2, When the local site is running a profile which status is "Waiting for remote listing (XXXs)", and if on the remote site the ExtremeSync Remote Service hangs and is killed then restarts, the local site will wait indefinitely. We must restart the SFFS service on the local site, then it can start to do sync jobs. Why is that?

Because of the way the communication works.

4. What is the recommended values of "Maximum listings to process in parallel" and "Maximum checksum requests to process in parallel"? Our spec is 2 2.4Ghz CPUs and 4GB RAMs.

It depends on how much you need. If you have 100 clients you will have to process more listings in parallel. The system should be able to handle anything between 1 and 20 listings easily. An average value could be between 3 and 5 for both of these.

5. In the profile, there is a setting in "Files" tab: "Number of files to copy in parallel". Does this mean that we can open such many threads to simultaneously copy files?

Yes. The program attempts to apply the bandwidth limit for the sum of all files copied in parallel. But if you want to limit the bandwidth, you don't have to copy in parallel. Parallel copying is intended for users that do not want any limits.

6. What is "No full copying if service unavailable" under "Use Partial File Updating" in Special tab?

If the Remote Service fails to generate the checksums, or does not respond within 40 minutes or so, then the program would normally copy the whole file and not use Partial File Updating. This checkmark prevents that.

7. When remote site is unconnected, the local site running SFFS will show "Waiting for Availability". But after the remote site is back online, it still showed "Waiting for availability" and will not start to sync files. Why?

Maybe you need to supply network credentials under Job->Network Connections. In some cases, the program may not notice that a remote system is available again, unless it knows how to actively make the connection. But I can only speculate. In general it works fine.