Cloud (Azure) Gateway support for Data Protector 10.10, running on RHEL 7.x.

Cloud (Azure) Gateway support for Data Protector 10.10, running on RHEL 7.x.

Hello,

We have been using the Cloud (Azure) gateway to perform backups directly to Azure storage.  It seems to be working quite well for smaller backups, but every now and then, for large backups, we see an error that appears to be a communication interruption with Azure.  The exact error details are:

[Warning] From: BMA-NDMP@ucwdpbs001.wilm.ppdi.com "DP_Azure_Cloud_gw1 [GW 5233:0:541170802490011539]" Time: 1/14/2019 1:06:03 PM

Error in communication with cloud [UNKNOWN EXCEPTION], retrying.

It looks like data is still being sent to Azure as the 'counters' keep increasing, ie. Done - 245GB and counting, or Done (%) - 36%...37%...38%...etc.

After a while though, if this error occurs again, one or two more times, we then see the following errors:

[Major] From: BMA-NDMP@ucwdpbs001.wilm.ppdi.com "DP_Azure_NixOracle_Full_Clou_gw1 [GW 8923:2:541170802490011539]" Time: 1/13/2019 4:27:22 PM

[90:51] \\dpcloudtier.blob.core.windows.net\dp-nixoracle-full-backups/b9b411ac_5c3abdb5_7880_3323

 

Cannot write to device (Invalid arguments.)

 

[Major] From: BMA-NDMP@ucwdpbs001.wilm.ppdi.com "DP_Azure_NixOracle_Full_Clou_gw1 [GW 8923:2:541170802490011539]" Time: 1/13/2019 4:27:22 PM

[90:64] Cannot unload exchanger medium (Invalid arguments.)

After which the Media Agent is aborted, the medium is unloaded from the slot and the job stops, as "Completed/Failures".  Again, smaller backup jobs do not seem to have an issue and complete successfully.

I opened a case with tech. support and the first thing they stated was that the Platform Support Matrix shows that our installation (Cell Manager, DP 10.10 on RHEL 7.4) does not support the "Cloud (Azure) Device" support matrix.

I'm trying to request full support of the "Cloud (Azure) Device" for DP 10.10 running on RHEL 7.x).

Thanks,

Sven

3 Comments
Micro Focus Contributor
Micro Focus Contributor

Hi,

Thanks for submitting your request. I am checking on the supportability of this configuration, will revert back shortly.

-Sheetal

Micro Focus Expert
Micro Focus Expert

Hi Sven.

     While the support situation is sorted out, you can attempt to increase the number of retries that DP makes in case of errors. To do so, set this omnirc variable  OB2_CLOUDDEV_MAXRETRIES - to a high value on the gateway host. The default value is 5, so you could try 15-20, and tune it higher or lower based on your test results.

Regards,

Shishir

Micro Focus Contributor
Micro Focus Contributor
Status changed to: Waiting for Votes
 
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