Storage and Deduplication

Good afternoon,I am trying to create a report on the occupancy of our libraries. However, the report coming from Commvault has a lot of information.Would it be possible to use CLI to extract only the information I want?My idea is to create a script and run it every month without having to manually organize the data.

 Hello, I am updating some our documentation on our best practices to securely delete files from file server's backups.The file server backups in questions are only stored on a primary copy residing on tape, encrypted via AES 256 per the storage policy, and using the built in key management server. Normally if we need to delete a file, we follow the documentation  and use the delete data by browsing option. For clarification, if I use the "delete data by browsing option" and delete a file that resides offsite on tape, there is no way to recover that file, correct? There is no way to "Un-Age" or catalog operation on the tape I could perform if I were to insert it back into my tape library? I assume that the CommCell destroys the indexed data/

Hi Team,The DDB partition Q&I time is very high post changed the DDB partition location. I have moved the DDB partition recently from one drive to another due to space was full.As per storage team, we are using Lun assigned NLSAS_SSD drives on our MA. Now all the backups are running very slow. I want to reduce the Q&I time or else want to run the DDB on single (T:\ DDB) partition. because the backups are running fine using that DDB(when i was moved the DDB that time it was used another partition) Please suggest on this.I have raised a case to vendor, they are suggesting to run the ConvertDDBToV5 workflow job and waiting for the steps and DT. 

Hello,During a DDB reconstruction process, how does it reconstruct the missing data?  In our case, it first performed a restore of the last backup which was from sometime early morning.  Does it then access the library storage directly to reconstruct the missing data or does it access the Commserve?  I’m asking because I’ve been told conflicting information from different Commvault technicians.  I just want to make sure that I understand this process clearly.  Thank you. Bill

i have next problem Alert:Aux copy job FailedType:Job Management - Auxiliary CopyDetected Criteria:Job FailedIs escalated:Detected Time:Wed Dec 28 23:42:51 2022CommCell:CommServeUser:AdministratorJob ID:63139Status:FailedStorage Policy Name:CommServeDRCopy Name:SecondaryStart Time:Wed Dec 28 23:00:11 2022Scheduled Time:Wed Dec 28 23:00:08 2022End Time:Wed Dec 28 23:42:51 2022Error Code:[13:138] [40:91] [40:65]Failure Reason:Error occurred while processing chunk [245216] in media [V_845], at the time of error in library [RezervnaKopija] and mount path [[CommServe] \\192.168.99.51\RezervnaKopija], for storage policy [CommServeDR] copy [Secondary] MediaAgent [CommServe]: Backup Job [62773]. Cannot impersonate user. User credentials provided for disk mount path access may be incorrec

Hi All,I have question regarding the Restore process specially for the VM Gues File system restore when done from the combined Storage Tier Cool-Archive being as used as end for long term Library.As understand, the Index and Meta data in this case will be in Cool storage and hence we would be able to Browse the data without having to run the recall workflow.Having selected the folders to restore, will the complete VM data/disk data be rehydrated from archive to tier or just the selected data?    

Hello,Today we would like to check the working solution for immutable storage in Azure. And I am really wondering how to configure that type of access: If the access node is local server and resource is not appeared in Azure. Regards, Michal 

/ws/ddb and /opt/commvault/MediaAgent64/IndexCache are not mounted anymore after the faulty SSD replacementSSD has been replacedNode has been rebooted oncethe entry is in the /etc/fstab

Error Code: [13:138] Description: Error occurred while processing chunk [79458260] in media [V_4661435], at the time of error in library [DiskLib_ca-VMAPool-1] and mount path [[ca-vma1] \\xxxxip\cvlt_maglib_01], for storage policy [Plan-ca-vma-VM-90Local-365Cloud] copy [2-DASH-privateStore] MediaAgent [ca-vma1]: Backup Job [8531530]. Cannot impersonate user. User credentials provided for disk mount path access may be incorrect. Source: ca-vma1, Process: CVJobReplicatorODS  Failed to Copy or verify Chunk [79458260] in media [CV_MAGNETIC], Storage Policy [Plan-ca-vma-VM-90Local-365Cloud], Copy [Primary], Host [ca-vma1.green.xxx], Path [\\xxxxip\cvlt_maglib_01\CWKROQ_03.16.2023_08.40\CV_MAGNETIC\V_4661435], File Number [1], Backup Jobs [ 8531530]. Cannot impersonate user. User credentials provided for disk mount path access may be incorrect. Cannot impersonate user. User credentials provided for disk mount path access may be incorrect. Source: ca-vma1, Process: CVJobReplicatorODS    

Hello Occured today on a strange error:HP Ultrium 7-SCSI_2 - A SCSI command to the drive is stuck on the active drive controlling MediaAgent.Id restarted tape libary but this problem is not resovled i assume i need to restart MediaAgent but dont know exacly how anyone can help?

Hi team  I am trying to add an network mount path to commvault storage library. I assign the mediaagent then choose network then pick the credential and input the path. When I click OK it takes a long time to load then gives the error: "Failed to read db". This is commvault version 11.24.94 recently upgraded from SP16. I tried looking at the logs but I can't se to find the relevant logs. Anyone with an idea?

Hi Team,we have a MA, which has four mount points all comes from backend SAN. out of four, one mount points are showing error while writing the data. i checked the disk management, disk was showing as read only than i have rebooted the MA and made the disk read/write. created test folder on the disk which working fine. but when i run the storage validation, it gives below error. did anyone had these kind of issue ? 7944  173c  09/09 10:20:44 685427 Scheduler  Set pending cause [Failed to mount the disk media in library [LIB05] with mount path [C:\CommVaulttLibrary\503] on MediaAgent [cv5]. Operating System could not find the path specified. Please ensure that the path is correct and accessible.

Hi Commvault Team how DDB works with the secondary copy (New Copy) to another disk library? assuming that we have two sites, each one has its own MA, DDB, Disk pool. and DASH copy is enabled.​​​​​​

Hi,We have the following environment:Commserve 11.28 on W2K22 3 Physical Media Agents (MA) on W2K22 Each physical MA has its own DDB partition disk (D:\) and its own Disk library volume (G:\) → there is no sharing of the disks between the physical MA The DDB has 3 partitions: one on each physical MA One disk library with 3 mounth paths (one per MA) but each MA has its own disk library volume not sharedBackups are going well but we have issues with “DDB Verification” operation.The error messages are the following:“Error Code: [62:2687] Description: Export / Mount failed for mount path [G:/dl_ssd_aalst/CV_MAGNETIC], please check if the mount path is accessible on Data Server [appwbck003]. Check the logs for detailed error. Source: appwbck002, Process: ScalableDDBVerf  Library [dl_ssd_aalst], MediaAgent [appwbck002], Drive Pool [], MountPath[\dl_ssd_aalst]: Moun

Hi Team,We created Private Cloud Library using Dell EMC ECS S3 protocol. However, today I noticed that the DDB Engines of the related libraries are unchecked in the DDB Verification schedule created automatically by the system.Is this the default behavior?Is it not recommended for DDB Verification Cloud Libraries ?Is DDB Verification recommended even if our private cloud data is still in our own DataCenter? Best Regards.

Hi guys, What is better: Full backup or synthetic full for streaming on agent-based backups for file systems? I get the point of synthetic full being better in terms that we are not using client machine’s resources, but are there any disadvantages of it?Would the normal full be saver..? If so - why?

I will soon have to implement Commvault on a site consisting of the following elements:- 2 MediaAgent- A NetApp storage array presenting file per block via iSCSIThe idea is that the MAs work on the same storage and that when one goes down the other continues to provide availability to the infrastructure for both backup and restore operations and reading a lot I think that the best for my case would be to implement GridStor: https://documentation.commvault.com/2022e/expert/10842_gridstor_alternate_data_paths.htmlFor my knowledge and experience, reading it makes me a somewhat complicated configuration and I don't know if it fits the needs I am looking for.This is the procedure that is the most difficult for me because I do not understand very well why: https://documentation.commvault.com/2022e/expert/9788_san_attached_libraries_configuration.htmlI thought that presenting the LUN to the MA and formatting it and sharing the data path with the oth

Hello,In  the documentation Deduplication Building Block Guide (commvault.com), it is mentioned that:“The DDBs created for Windows Media Agent should be formatted at 32 KB block size to reduce the impact of NTFS fragmentation over a time period.”Is the format at 32 KB referring to the block size of the disk itself (NTFS block size) or referring to the “Block Level Deduplication Factor” parameter of the Storage Policy as shown below ?Thanks  

We had an FM200 release in our data center.  DDBs became corrupt and restore failed.  Sealed and started new DDB to get backups running.  Now all jobs have aged out of the sealed DDB, but I still have 387TB of data on disk and I need the space back ASAP.  SIDBPHysicalDeletes not showing continuous activity.  Data aging ran multiple times.

clarify DD backup in server. We need to finalized data quota limit.

I’d like to create a single beginning of year (Jan 2023)  selective copy (to Tape)Settings are Selective : Yearly Full, First Full of the YearWhat I’d ideally like to achieve is to capture only those Full backups that took place in the first 2 weeks of the new year - which is ‘easy’ to do. What happens though is:If some ‘new data’ or new subclient is created and it obtains a first full in say February 2023, that data will ‘wait’ until it can be written to tapeBut no physical Tape will be made available until Jan 2024(eg 10 Tapes are put in on 1 January 2023 , 10 Tapes are removed 31 Jan 2023, and no further Tapes will be inserted until 1 Jan 2024) What I’d like to do is:If There are AUx Copies waiting (specific to Storage Policy and Storage Policy Copy), if the Aux has been waiting for more than (say) 60 days, is change the job to ‘DO NOT COPY That is ‘almost’ have an expiry data on waiting copies for

I am attempting to replicate an existing Storage Policy with some differences associated with Media Agents for the copies. There is a existing setting called Archiver data Retention with a setting of 63 days for certain copies, but looking at the Copy properties for Retention, I am unable to find that setting.As a result, in my replicated Storage Policy, the default Archiver data Retention value is Infinite.Do you know how to set the settings for  Archiver data Retention?  

Is it possible to migrate the data from one storage policy to another?  In turn, also migrating this data if the policies are on separate libraries other than through AUX operations.

Hi All,We have configured OL enabled s3 bucket and configured library and storage pool and policies using that s3 bucket and everything shows online and can be access from commvault console and also using CLI on MediaAgents. we also tested cloud test tool and that works fine too. But when we start a backup or Aux copy we are seeing below errors on the jobs2204  37c4  02/28 17:04:16 33401117 [cvd] Curl Error: 23, PUT https://pss-commvault-use1-db-45d.s3.us-east-1.amazonaws.com/9T4IG2_02.01.2023_22.26/CV_MAGNETIC/V_16092550/CHUNK_172585619.FOLDER/12204  37c4  02/28 17:04:16 33401117 [cvd] CVRFAMZS3::SendRequest() - Error: Access Denied. 2204  2948  02/28 17:05:29 33401117 [cvd] WriteFile() - Access Denied. for file 9T4IG2_02.01.2023_22.26/CV_MAGNETIC/V_16091931/CHUNK_1725859252204  37c4  02/28 17:05:29 33401117 [cvd] Curl Error: 23, PUT https://pss-commvault-use1-db-45d.s3.us-east-1.amazonaws.com/9T4IG2_02.01.2023_22.26/CV_MAGNETIC/V_16091931/CH

We’re running CV11.24.25 with a two-node grid (physical) with CIFS mount paths from a Nexsan Unity that takes secondary copies from MAs that perform backups (no direct backups other than DDB), with a a partition on each MA. We decided to replace this with a four-node (virtual) grid with S3 (NetApp) storage. The four-node grid was set up with a global dedupe policy based on 512KB dedupe block size with a partition on each node. The two-node grid is the standard 128KB dedupe block size.We had ~600TB of back-end storage (~3.3PB of front-end) and have ~1.75PB front-end left to process after about two months of copying. There were 105 storage policies (multi-tenant env) with retentions ranging from 30 days to 12 years (DB, file, VM, O365 apps) with anything higher than 30 days being extended retentions (normally 30 days/1 cycle and then monthly/yearly with extended retention).We do not seem able to maintain any reasonably high copy rates. Having looked at other conversation