Storage and Deduplication

Hey all - we are having a VSS failure for our DDB backups.  Providers look fine but seems like there is some sort of issue with it.Windows Application Log error says the provider could not be started.  The provider referenced is the Galaxy VSS Provider Service.  It is telling us there are no associated devices.This has been working just fine and then just randomly started failing on Nov 22nd.  Nothing has changed on the media agent.When running the vss creation manually - the error is VSS_E_UNEXPECTED_PROVIDER_ERRORCustomer will most likely open a ticket but wondering if anyone has any ideas?PS- we rebooted just for the heck of it...

Hello,I would like to discuss the issue with a cleaning tape.Our cleaning tape is marked as deprecated and it is not possible to use it for cleaning anymore. Is it possible to somehow reset the counter for number of uses? We tried to delete the cleaning tape and rediscovered it, but the Commvault remembers the number of uses. The cleaning tape seems to be new, on the tape library there is written, that it was used almost 60 times.Any help much appriciated!

If we enable tiering on a cloud library that lready exists with data in it, is it only new data (writes) that get’s tiered or is the whole path re-arranged?//Henke 

Is there any reason (technical or best practise) why the DDB policy can’t backup to tape?It’s defaulted to our disk library which is on the same MA as the DDB.Tape feels a bit safer 

Hi all, I start on this community, so thanks about all help you can give me. Near 2 years ago, we make a mis configuration on our infrastucture.Result : We have datas on Tape, which have bad data retention date.When I modify the retention date of jobs, I have 2 different behaviors :When I increase retention date : COMMVAULT show the right date When I reduce retention date : COMMVAULT don’t make any changesWhy ?How can I expect that datas expire at the right date ? My COMMServe is in 11.24.21 Thanks in advance

I’ve used the subjected workflow some times and it’s working.However when I looked at it today it seems it was changed @ some point in time.The documentation isn’t corresponding to whats shown in the GUI.It seems that it’s not possible to target a specific cloud library any longer.Is it just on my installation this has changed, or anyone else seen this?Screenshots provided below.//Henke

We have CommVault Complete licensing and also Metallic Cloud Storage Service (MCSS) licensing. However, the Command Center dashboard lacks a widget for Metallic. Can someone share how to add a widget that would display the %used of a library? This would effectively show MCSS as a % of licensed use. The existing Current Capacity widget only shows the % of licensed Complete usage, not the % of storage used; the MCSS library falls into the latter category since MCSS is not a “Complete” accounting of backup potential, it is an actual % of backup used. From dashboard:From Storage>CloudSo it would be nice to see the cloud library as a pie chart, similar to the complete licensing in t

I do several 10-20TB synthetic full jobs each week which are then aux copied off to tape on a global tape copy policy with a single stream (one LTO drive) with multiplexing enabled.I noticed that under the advanced settings on the synthetic full job the “Use Multiple Streams” option is NOT selected.What I think this means is that each 10-20TB synthetic full backup gets written to disk as a single stream which means it gets aux copied to tape as a single stream.If so am I right in thinking I want to enable this setting so the synthetic full jobs get written as multiple streams as this means they’ll get aux copied as multiple streams?I’m going to be moving the DDB to a new NVMe volume which seems a good time to review things.We’re on 11.20.73.Thanks in advance.

Hi Team, We are in the process of evaluating our recent Aux Copy performance to our DR site as we are scoping for future capacity and bandwidth requirements. It would be very useful if there was a suitable report to show me the rate of throughput and the amount of data copied in a summary format, similar to what you see when running Job reports and aligning by Storage Policy (as opposed to client). Surprisingly, I can’t see a summary of the Aux Copy results in any reports.Although the Aux Copy entry in the report shows the data copied, and the overall throughput it is only for each Aux Copy job. You can see below in this example, where we have a few days worth of Aux Copies:-  What I really need is a report with a summary line at the top of all data copied and th

Hello,I want to use Commvault to backup 10 laptops.The files used are :Vidéo : .MOV, MP4, .RAW, .BRAW, AVCHD, BOO, DOO, TBL,  Editing files:  .FCP ou .SRT Audio : .MP3, WAVE, AACCould I use the deduplication and compression on these files? If yes then what will be the ratio? Thanks.Best Regards,Ben

Hi,I would like to ask on how we can perform recovery of data from our offsite copy. We have CVfailover setup in our environment below are the options we need to perform. From Commcell console in Site A, How to recovery our data form offsite copy which is in a secondary storage of site B? When commserv in Site A went unavailable and the commserv server in site B become  active after successful CVfailover. From commcell in Site B, how to recovery our data from primary and secondary storage in site A? and how to recovery our data from secondary storage in Site B  when commcell servers and storage arrays in Site A a is also unavailable?Refer to the attached photo for the commcell environment. Appreciate a lot to anyone who will provide a response. rolan. 

Is there a calculator (or formula) to estimate the required backup storage capacity for Office 365 Backups (Exchange Online, OneDrive for Business, SharePoint Online & Teams)?For “normal” backups (File, VMs, Databases) there is such a calculator (Link), but I haven’t found anything regarding Office 365.How do others run such capacity calculations for Office 365? RegardsChris

Hey all We are creating a secondary copy and writing to a combined tier library.  When we create this, do we need 1 bucket or 2?  I only created 1 bucket and specified the combined tiers.  Does an additional bucket get created - or a different folder within the bucket created and that gets changed to Glacier?We are planning on using S3-IA/Glacier for the 2nd copy.I guess I just want more specifics on what exactly happens in this process. ThanksMelissa

Hi Community - We have a circa 2PB Cloudlin currently writing to AWS S3.  Our customer is asking if we can migrate this data into Azure. Has anyone out had experience of the best way to accomplish this - I am thinking doing this using AUX copies is going to take rather a long time to copy 2 PB!!

We are currently preforming a DR backups to On-Prem (multiple locations) and CV cloud. As viewed in cloud.commvault.com it appears that we are limited to only 5 iterations of the CV DBs. In “DR backup” options we have 20 set, but that seems to only be On-PremQuestion> Is there a way to expand the amount of CV cloud backups retained? 

Hello Commvault Community,  I need help with data pruning issue after Seal DDB (every 3 months) - micro pruning is disabled, but jobs shouldn't be held for that long anyway. (screen1.png) Micro pruning is disabled due to the cost of operations in the Cloud Storage.As I remember correctly, Commvault also recommended disabling micro pruning on the cloud library. We have generated a Forecast report, where some of the described Jobs are actually kept by not being copied to Secondary Copy, but it's about 30TB, and for example (screen2.png) it says that the data is 126TB within one of the Sealed DDBs. There are several such databases and a total of about 600TB of data remains in the Cloud, which should probably be deleted. I am asking for help in solving the problem. Screenshots and Forecast report are attached. Thanks & RegardsKamil

Hello there,I’m have a minor issue, I cannot delete unused Mount Path, since it’s used by DDB. There’s a few of MPs under Disk Library dedicated to this DDB. In the DDB properites I can only remove whole Disk Lib, which is not the point.  CommCell says that in order to delete this MP, I need to delete each Storage Policy Copy which is referencing to this Disk Lib. It’s not an option neither.   Logs are saying something similar: EvMMConfigMgr::onMsgConfigStorageLibrary() - Error [470, Mount path is used by a Deduplication database.] occurred while deleting the mountPath[xx] ###### MLMMountPath::deleteMountPath() - :mlmmountpath.cpp:6170: Failed to delete mountpath [xx] due to error [470, Mount path is used by a Deduplication database.].###### MLMMountPath::deleteMountPath() - :mlmmountpath.cpp:5593: Failed to delete MountPath from database for Id [xx] due to error Mount path is used by a Deduplic

We had to back up some exchange Dags for short term retentions to an 3Par Disk library. The Mount Path is from one of our media agents where i can see what's stored on the 3Par. My boss wants me to back up the month of September that we have on disk to tape, so we can clear it out from the 3Par for another month of Storage.  Would the best way to back this up to tape would be to create a subclient on the media agent the drive is mounted to , target the Data Chuncks for the time of the month he wants backed up, and assign it a storage policy that will back it up to tape, or will that not capture the data we want from the 3Par?

Good day allThis one is a bit complicated, so will try keep it as brief as I can.The customer has a faulty storage device with the backup data on it.They’ve received a loan VAST unit which uses it’s own deduplication engine in addition to the Commvault dedupe in place. We would like to turn the Commvault deduplication off as we’re having errors on the DDB which may require us to seal it.The concerns I have are below, and I’m hoping to get some clarity on it.The faulty storage and VAST storage are in the same Data Centre (DC1).We want to turn DDB off in this DC and do a Move Mount Path(s) from the faulty storage to the VAST.At the same time, new backups are running to the VAST device on different Mount Paths.When this is all complete and the faulty storage is replaced (it won’t have it’s own DDB capabilities, so Commvault will handle that), we will move the VAST Mount Paths back to this s

Hello Guys,I have a problem with the copy being made to the another site.Version CommServ: SP20 - 11.20.73I saw in another topic the same problems, and saw that update to SP21 solve this problem.Ihttps://community.commvault.com/technical-q-a-2/auxilary-copy-not-copied-some-jobs-239What do you think? Do i update to version SP21?

Anybody used gzip with --rsyncable to increase dedupe efficiency and does it actually help?  People still like to do app/database dump and pickups its all good until they compress the dumps and you convert the pickup backup from tape to disk dedupe.  Since dedupe doesn’t like compressed files as a source there’s rumors that --rsyncable option will help here.This option uses a totally different compression algorithm that's rsync friendly and only increases the compressed size by about 1% when compared to the regular flavoured gzip file.     

Hello,I have a new DDB with 2 partitions but i only want 1 partition. The ddb is empty, how can i remove one of this partitions?  

Hello,after upgrading from V11FR20 to V11FR24 I noticed a new schedule policy named “System Created DDB Space Reclamation schedule policy” which was disabled by default.I basically know what the Space Reclamation functionality is about, and the policy has all our deduplication engines assigned. But when initializing this policy it finished in less than a quarter of an hour and from the logs only one dedup engine was processed. Another manual start just gives below error message. Can anybody explain to me what this schedule policy is about and how it is supposed to work? 

Hi all,after some time we are facing another serious issue. There is no available space on the disk library. Ayayay.We have tried to find if there are any unprunable jobs. There were some of them and therefore we have set option to ignore cycle retention for disable subclients. Unfortunately, only small amount of GBs have been aged. Now, there is a question what to do next. I have no idea how to find what can be deleted in order to make more free space for the backups. Moreover, there will be quit a big deduplication ration, so even manual deletion of some jobs do not have to be useful. Maybe, one useful information can be that during the last month there were increase in data cca 10TB, which is 10 percent increase. Is there possibility to figure out what data did this increase? Is there any generule rule or useful tool within the Commvault to fight with this issue?

I have general slow performance from my backend storage.  How can I determine the issue on my backend storage?