Storage and Deduplication

Hi all,we are trying to figure out, which way to implement a NetApp Snapshot-based backup with a SVM in a DR-Relationship. To be more specific:Production: SVM1 on ClusterADR: SVM1-DR on ClusterBBackup: SVM1-BCK on ClusterCCommvault will trigger Primary Snapshots on SVM1 and replicates those Snapshots to SVM1-BCK. In the event of a disaster, SVM1-DR gets manually acitivated.Question:Can we use tunneling for SVM1 and in case of a disaster Commvault will automatically connect to SVM1-DR on ClusterB (same as with MetroCluster configurations and the “DR partner” parameter → https://documentation.commvault.com/11.40/expert/configuring_dr_partner_for_metrocluster_configuration.html)? Or do we need to connect to the SVM directly to be able to perform Primary Snapshot Backups on the DR-SVM?RegardsMario

Has anyone used a DDB on a software RAID? I have 2 NVMe drives I want to use Windows Disk Manager to put them into a mirror for the DDB and Index Cache.  

Hi all, Can anyone help or have you had this problem? Error occurred in disk media, path... \CV_MAGNETIC\V [[Cloud] HTTP error conflict.]. For more help, please call you vendor' support hotline

Decommissioning of primary snapshot copy and Media Agent for primary copyI currently have a Netapp IntelliSnap backup configured with snapvault.   I want to decommission the Media Agent as well as delete the primary snapshot copy and keeping/retaining the secondary copy which is in a Netapp arrap I intend to keep.  The primary snapshot copy is located in a Netapp array I plan to decommission.Questions1. How to i deconfigure the MA involve with the primary snapshot copy and primary streaming copy so I can finally decommission the Media Agent and its associated disk library2. How do I go about deleting the primary snapshot copy so I can then decommission the Netapp array where the primary snapshot copy is located3. Is it possible to promote the snapvault copy as primary snapshot copy?Note all primary snapshot copy can be deleted/removed. We are keeping the secondary snapshot copy/Snapvault copyAny answers to the questions is appreciated

Restore failing(goes to Pending) with error Error Code: [13:244]Description: [Media read operation failure] [Dedupe disk media] [Access to the file/media denied.]When running on Media agent 01 but goes through when running on Media Agent 02

hi guys, we have about 20 brand new LTO9 media (calibrated) inserted int Quantum scalar i3 library, which is directly connected to the media agent (hyperscale node x with os rocky) , about 10 tapes had assigned a - Media exceeded the "No. of Media Label Errors" threshold. , when i click to media verification i have a warning message - media in library does not have a valid media label which means that is was not written to by this product.any solution ?    

Hi. I’ve tried a bunch of report to get a detailed report of storage usage. I’ve used this one:Estimated Storage Utilization By Policy Copies or DDBs or Libraries. I know it’s an estimate, but if I add up all the used space for every client, there’s about 30% difference between the storage usage according to CV vs the report. CV says 490TB, reports says 330TB. I’ve tried a couple other reports and they all have the same 330TB approx.Since it’s cloud storage, the $$$ involve here is significant

Hello all,I’m looking into support for CEPH, namely the block access (RDB) because we’re considering replacing the current SAN arrays with CEPH distributed storage and backup is of course a big segment of it.But I cannot find much information on integration with CEPH, e.g. support for IntelliSnap feature which is well supported for NetApp/Pure etc, nor which DB agents are supported with CEPH as block storage. Has anyone played around with this idea? Are there any internal reports or (POC) reviews that could shed some light on this?Thanks in advance! Regards,Igor

Hi Everyone,I’ve noticed a significant increase in the size of DDB over the past few days. About three days ago, each partition of the DDB was approximately 115 GB, and as of today, all four partitions under the same engine have grown to 145 GB each.Could you please help me understand the potential reasons for this growth? What areas should I check, and are there any recommended troubleshooting steps to investigate. 

Hi:As Air Gap Protect (AGP) is supposed to avoid egress costs, I would like to know in which cases or situations or configurations an egress cost may be generated when data is accessed or restore from AGP Hot and Cool. Best regards,Paul

I changed the password for the AD domain account 'backup.user.' After checking the Commvault Communication Service logs, I found login failure entries, though I confirmed that the service is configured to run under the local system account (not a domain account). The CVD.log shows the error:*'failed to log in using [domain\backup.user] -1326.'*Could you advise how to check the login configuration for cvd.exe and update it with the correct credentials? Thank you.

We are currently switching to deduplicated storage as part of our migration to plans and therefore looked into recommended settings for everything to work smoothly and the most space efficient.I already noticed our Commcell had the horizontal scaling option disabled as we upgraded from older versions which resulted in the old default behaviour.Upon enabling I can now see two DDBs for the two data types we currently backup to this pool: Files and Databases.From previous experimenting we noticed improved deduplication savings when using no compression for file backups.For databases it seems the other way around as also suggested in the documentation.This got me wondering:Is compression with deduplication also recommended for File or VSA backups? If we disable compression on the DDB (e.g. Files), will the setting persist when the DDB is sealed? (because we use WORM/S3 OL)

Hi all,We would like to restore an old VM backup from AWS library in Commvault. However, it is unable to restore with an error “unable to find/get index cache[ ] at time [ ]” .Is there any way to fix such as reconstruct the index?

Hello Community, Let’s say we created an Azure Storage Account with the default "Hot" access tier. What happens if, for this specific Storage Account, we configure it as "Cool" from the Commvault side?  Does the Commvault selection ("Cool") override the Azure setting ("Hot")? Please for your feedback.Best regards,Nikos

We have a customer running 11.32.89 that are protecting VMWare thin-provisioned VMs. We do primary backups with Pure snapshots. The customer informed us that they have Windows Data Deduplication (WDD) running in the VM. I am seeing older articles online around using thin provisioning and WDD that indicates larger consumption of disk because of WDD cleanup behavior. WDD doesn’t dynamically clean up; it cleans once a week. With that behavior, the thin provision VM keeps growing until the clean up happens. During the backups, we're getting horrible dedupe rates in some servers (10%). Along with that behavior, we are seeing Data Analytics (Indexing) of the VM contents taking longer than 24hrs. Finally, the CVLT provided information seems off - in that we show in the "Data on Media" view that Size on Media is at 6.3TB, but data written says 2.5TB. They're asking what's going on with that.I’m thinking the consumption is due to VM protection in that we protect what the VM size is and not what

Hello,We have several Pure arrays at our primary Data Center that regularly create and replicate snapshots to our Pure arrays at our DR site. I would like to use these snapshots as recovery points for Commvault so I would like Commvault to manage these snapshots. We would like to run snapshots every 4 hours or so and write 1 to disk every 24 hours. I would love to get input on how others have set this up. I’m considering doing this on the Storage Policy level but am not sure that’s the way to go.

Hi team, how much backup storage capacity will be consumed when using OnePass backup of VMware VM?Assuming we have one VMware VM (100 GB used inclusive 30 GB MS SQL DB). When we do a VM backup with DB agent, do we backup 100 GB (onepass) only? or we backup 100 GB (VM level) + 30 GB (DB agent)? It means backup storage will consume 100 GB + extra capacity from DB backup. Which one is correct?Thank you. 

HiIs it planned for Commvault to support Governance Mode for S3 buckets?If yes, when can it be expected?If not, why? The Compliance Mode is far too risky and is also not recommended by most engineers.We’re using a Dell ECS on prem and I want to enable WORM but only with Governance Mode. ThanksMichael

Hello, I'm trying to perform a restore using a test environment.I'm trying to restore the VM using tapes. The backup server and media agent are not on the same server.When I start the restore process, I can restore the index, view the VMDK files, and start the restore pointing to a VCENTER and the datastore with space.The restore starts and reaches 92% and fails. The error message says that communication with the media agent has been lost.Has anyone experienced this and can help me?

Hi everyone,I'm facing a recurring issue when restoring a virtual machine (VMware) using Commvault version 11.32.76. The restore consistently fails at the same point, regardless of different configurations and attempts.🛠️ Environment Overview Restore type: Full Virtual Machine Restore Transport modes tested: NBD and NBD SSL MediaAgent: properly installed, communicates with vCenter and ESXi Destination datastore: accessible and has sufficient free space VM progress: restore completes up to 92% (~84 GB of ~91 GB total) Permissions & services: confirmed running correctly ❌ Error Behavior Restore job starts and progresses normally .vmdk files are successfully created and opened in the target datastore Failure occurs at the final phase, with the status:   RestoreVMData failed yet no specific write/read/seek errors are logged  Relevant log snippet (vsrst.log)RestoreVMData failed. CloseArchiveRet: [0] Seek Error [0] Write Error [0] Read Error [0] Browse Error [0] Restored

I keep getting these job failures and i have gone through everything that i can think of to resolve this. does any one have any ideas or ways to fix this issue?   One or more volumes are not supported for VSS Shadow Copies. Possible causes: - Unsupported volume or file system type (eg. FAT, FAT32). - Unsupported volume size (over 64TB). - Remote or network volume not accessible. - Other, check the logs for more details.  

i have the commvault  v11.28.83. i want delete old backup from disk manually because of i have not empy space on my storage disk. the agging option is finishing works, but the disk space is not emptied.how to do it?

Hi,We’re trying to delete jobs thats having no data left in it. Since we have deleted all data within the subclient. In under the right storage policy viewing jobs we don’t get delete as an option in the rightclick menu.We’re running version 11.32.92 on prem.The subclient is a subclient of a Windows File System that’s been backingup data that should have been purge for several years ago.We’ve managed to delete the files backedup. But the jobs still exist in under the subclient.When trying to delete the subclient we get “The last cycle pertaining to [xxxx] subclient will be kept until those jobs are manually pruned. To confirm this action type …..How do we delete the jobs or prune them directly??

Hello all, currently we are facing some performance issues with our disk library, which is a CIFS share provided by our central storage system/appliance.To run some analysis or to troubleshoot the problem further, we thought about to run some tools like IOmeter against the storage system an see how it performs.The question which we are now facing is how we have to configure the tool regarding the workload/storage caracteristica which commvault is creating for a storage system and a deduped library type?for example:80% read20% write4KB IO block size70% random30% sequentialand so on if there are any other values which should be considered. Many thanks and regardsSkoomer

Dear Vaulters,I have a question. I’ve configured the backup for a vm group to be on our new LTO9 tape library and configured the selective monthly backup on the same library for long retention.for the tapes of the primary copy i see that each tapes keep about 37 TB of data whereas each tape for selective copy keep about 16 TB of data. Our expectation is to keep the more data on the tapes assigned to selective copy as the same data are kept on the same library. Please let me know if this is normal behavior. BR