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Storage and Deduplication

Storage and Deduplication

Discuss any topic related to storage or deduplication best practices

898 Topics
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Nedal1993Bit

asked in Storage and Deduplication

Robert HorowskiCommvault Certified Expert

asked in Storage and Deduplication

How many DDB partitions are supported on single MA?

I’m a little confused about multiple partitions and or DDBs limitation. There are several places when limits are mentioned like the one and only Hardware Specifications for Deduplication Mode1) https://documentation.commvault.com/11.24/expert/111985_hardware_specifications_for_deduplication_mode.htmlwhich mentions “2 DDB Disks” per MA andConfiguring Additional Partitions for a Deduplication Database2) https://documentation.commvault.com/11.24/expert/12455_configuring_additional_partitions_for_deduplication_database.htmlwhich mentions “30 DDB partitions” per MA.Also, In my recent discussion with PS member I was told that a partition should be treated as DDB itself.All of this creates a lot of confusion likea) is “DDB Disk” the same as DDB?b) is “DDB partition” the same as DDB?If you look at 1) /Scaling and Resiliency there is a informationThe back-end size of the data. For example: Each 2 TiB DDB disk holds up to 250 TiB for disk and 500 TiB for cloud extra large MediaAgent. That means

2 years ago

Spartan9Byte

asked in Storage and Deduplication

Auxcopy optimization

Hello community , We are trying to migrate SAN storage to S3 cloud library .Per suggestions followed these steps . 1. configured new global dedupe storage policy using your new S3 bucket and MA2. configured new secondary copies in your existing storage policies pointing to your new S3 dedupe storage3. ran aux-copyWe have huge data and contacted commvault support to determine the timelines to know when the aux copy will get complete . Currently aux-copy is running for more than 4 months.Support has mentioned below points .-Your current configuration is allowing the selection and prioritization of new backups over older data-You are also configured to copy all data to cloud and mentioned we are not using dedupe for aux copy. How to make sure have optimal Aux copy configurations Please share your inputs . Thanks in advanceSpartan9

2 years ago

drPhilByte

asked in Storage and Deduplication

Temporarily disabled deduplication - make it enabled again

Hi all,some days ago we have temporarily disabled deduplication only under storage policy copy (Storage policy tab). Now, we want to allow deduplication again, however if we uncheck the option (temporarily disable deduplication) we see the message - Deduplication cannot be enabled on dependent copy when disabled on Storage Pool. And this is very strange. Under Storage Pool there have been no changes made, moreover, there is no option to uncheck temporarily disable deduplication (Storage Pool tab). Maybe, only one thing can be in play, the DDB is in Maintenance state because of verification in progress. Storage Pool window - no option to switch disabled deduplication

2 years ago

AnujByte

asked in Storage and Deduplication

is it possible that I restrict commvault to use media from designated slots (not to scan/use all library slots)

I am running a migration from other vendor to CV. For a time being, is it possible that I restrict commvault to use media from designated slots (not to scan/use all library slots). Just to avoid conflict as the tape library would be having CV as well as other vendor media.

2 years ago

Fernando SouzaByte

asked in Storage and Deduplication

Copy of config of Backup jobs to a new servers

Hello,The customer bought new servers MS SQL and migrate to new 2 servers.Scenery today:2 servers MS SQL1 production2 copyNew Scenery:2 servers MS SQL (New Version of O.S. and Database)1 production2 copyand i need to copy the config of backup jobs, with the same configuration of current backup: retention, backups jobs, DDB, schedulers.Does anyone have any procedure? the best practices to do.

2 years ago

JoseRamon

asked in Storage and Deduplication

Error Code 13:187 Some jobs skkiped during an Aux Copy

Scenario. We´re creating an Aux Copy for all existing backup jobs from a particular storage policy, during the process we faced the following error message:Error Code: 13:187Description: Some backup jobs are skipped because they are aged on destination copy or marked do not copy.Source: commserve, Process JobManager. The Aux Copy was configured to take all existing jobs from the primery and only was able to run and move 10% of the total data on the primary copy and skiiped the rest, any idea how move the skipped jobs?? Regards. Ramon.

2 years ago

ManikandnByte

asked in Storage and Deduplication

Deduplication scalling

Hi,We are in CV deployement and Initially we build a single MA with 4 partitioned DDB in the Azure cloud. When data is growing, we moved the two partition into new Media Agent and its running in two MA with two DDB disk each.Now, both MA reached its bottleneck planning to scalling up further, but management allowed me to add one MA alone.So, I have one possiblity of running the backup with four-partitioned DDB splited with three MAs as shown below.MA 1 - Single DDB Disk MA 2 - Single DDB Disk MA3 - Two DDB DiskI am bit worry about to do that, as I am thinking it make some instablity between MAs. But, I couldn’t find relevent CV documents. Can you suggest whether the above design make any sense or not? and will it make any issue in the future? Thanks,Mani

2 years ago

LaurenceB

asked in Storage and Deduplication

Shared Library: Exclude/Include Barcodes tapes from old library from new library

I have a shared tape library, used by the “old” and the “new” commvault environment. The “new” is Hyperscale. I want the “new” to use only tapes with a barcodes prefoxed with ‘NP’ and the “old” to use everything else but not ‘NP’. Hopefully, that makes sense! Question: How is this achievable? cheers

2 years ago

neuwiesenerByte

asked in Storage and Deduplication

Usage of mount points in a disk library

We have a partitioned DDB that uses a Disk library with 12 mount points. Spill and fill has been configured.An oracle DB is backed up with 4 streams/channels. The backup allocates 4 streams but these streams are allocated to one mount point and via one MA. How can the streams be spread across multiple mountpoints such that 2 go via MA1 and 2 via MA2.===Second Oracle DB is being backed up. This takes the same partition as the above job and uses another mount point with all 4 streams going to the same mountpoint. Any ideas how the streams to make Commvault distribute the streams evenly?

2 years ago

neuwiesenerByte

asked in Storage and Deduplication

Disk Volume Size Watermark

Came across this setting and was wondering when this should be used? What is a possible usecase to tweak this setting? Configure Disk Volume SizeDisk volumes are created based on the volume size. When the size of the volume reaches the maximum size, then a new volume is created. The maximum size of a disk volume is set to 25 GB by default, and this value can be modified. On the ribbon in the CommCell Console, click the Storage tab, and then click Media Management. Click the Resource Manager Configuration tab. Modify the Disk volume physical size high watermark in GB parameter as required. From the Disk volume physical size high watermark in GB box, enter the disk volume size. Click OK. https://documentation.commvault.com/11.24/expert/9319_disk_libraries_advanced.html#b9365_use_unbuffered_io

2 years ago

drPhilByte

asked in Storage and Deduplication

DDB database reconstruction and deletion

Hi there, I want to share my experience with DDB reconstruction. My colleagues started the DDB database reconstruction because the DDB database was not in good condition. There were no current backups of DDB database (the last backup was 14 days old) and maybe some other error messages were active. They decided to start full reconstruction, maybe there was no option to make manual backup of the DDB database - hm, but the database had not been updated with new records anyway. The thing is that the reconstruction is very time consuming and moreover, since the DDB database is not running the backup jobs are not possible. The workaround we did was to temporarily disable deduplication. Another caveat is that we are running out of disk space. And that is how a disaster looks like . At the end I wil put my hypothetic questions. Is the DDB database needed for restoring of data - I wouldnt say so. And what would happen if the broken DDB database was deleted and completely the new one was built

2 years ago

drPhilByte

asked in Storage and Deduplication

Changing disk library for primary storage policy copy

Hi there, most likely we will need to temporarily change disk library for a couple of storage policies because of slow DDB database reconstruction.My question is how to change disk library for primary storage policy copy? There is no scroll down menu to change disk library in Default Destionation field Does it mean that I need to create new secondary copy and after that promote this newly created secondary copy to be the primary one? Is there any potential data loss? Do you have any hints or caveats for this task?

2 years ago

Eslam Salah

asked in Storage and Deduplication

Hyperscale connection to tape

Hi, I’m asking if i can add HPE Tape library to the Hyperscale appliance by adding HBA adapter then connect the Tape library direct to to it

1 year ago

ElmerTByte

asked in Storage and Deduplication

Media stuck in drive

Hi,After a power failure the tape library is showing offline with the error initializing device failed. I restarted the Commvault server and the error went away however the drive is showing a media but in actuality it is empty. I can’t mount a tape since Commvault thinks there’s still a tape inside the drive. How to resolve this issue?

2 years ago

JimHPE

asked in Storage and Deduplication

HPE StoreOnce disk libraries and Command Center

I’m new to CV and still trying to sort out Commcell Console versus Command Center, so I appreciate your patience. After 4 years with Veeam and two decades with Data Protector, Commvault is proving to be quite a different animal.My first concern is why it takes googling some arcane code (ActivateHPECatalyst) to enter in the Commcell Console properties to make visible the StoreOnce option for library creation in the UI. What is the rationale for hiding the StoreOnce option in the first place?Now that I’ve added a Catalyst-backed disk library in Storage Resources > Libraries via Commcell Console, I go back over to Command Center, look at Storage > Disk, and I do not see my new disk library. How then am I supposed to add it to anything as a backup destination?

1 year ago

CypherOne

asked in Storage and Deduplication

skipping Global DDB creation.

Storage policy creation wizard asks for storage pool creation and global DDB creation. How to bypass this? I don't want to create a global DDB. Commvault is at V11.23.

2 years ago

EldanByte

asked in Storage and Deduplication

Import media from catalogic app

Hi, do I have an option to Import media from catalogic app? I have a customer that migrated to commvault from catalogic and he wants to know if he can import the catalogic tapes to commvault library.he has tapes with the last backup from catalogic.I think he will have to maintain his old backup system, but I’m don’t 100% sure.

2 years ago

Ken_HByte

asked in Storage and Deduplication

How to show if my backups are encrypted

The auditors want to see if my backups are encrypted and I’m not sure where to go in the CommVault GUI to show that. I don’t see anything about encryption in the properties for my storage libraries or my storage policies. Where do I show whether or not my backups are encrypted?Ken

8 months ago

DavidBByte

asked in Storage and Deduplication

Moving the DDB for a cloud storage libray to different on-premises MA

I have several cloud libraries, where the storage and DDB are controlled by an on-premises MA. I would like to switch several of them to a different on-premises MA. But cannot seem to find anything here on it the docs on how to switch MAs for an existing cloud library.

2 years ago

drPhilByte

asked in Storage and Deduplication

Storage policy jobs preference

Hi,in our case there is a lot of running jobs accros multiple storage policies. Once the jobs reach more than 90% of completion, the throughput of the job falls and the speed of the job is very slow. However,some of the jobs, that have less than 50% in progress status, are running faster.Is there any option to prioritize jobs, that are almost finished (with more then 95% of progress)?I know there is possible to change priority of the single job, however, from my experiance it didnt increase speed too much. Maybe I should have used the highest priority, that I exactly dont know.

2 years ago

zori92Bit

asked in Storage and Deduplication

Library inventory is in progress

Hi,When I try to export a tape, I get a library inventory is in progress error I can't find a way to solve this problem, any ideas?

2 years ago

neuwiesenerByte

asked in Storage and Deduplication

DR of scale up Media agent

Hello, IHAC who has a NetApp eseries as their disk library. When MA1 writing to a lun fails, the lun needs to be mounted on another MA2 to restore the backups. What is a standard procedure in Commvault that could be used to open the same mount path from a different media agent. From the Commcell GUI one can only create a new mount path. The goal is to be able to restore the data protected to this LUN from a different MA.

2 years ago

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