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Storage and Deduplication

Storage and Deduplication

Discuss any topic related to storage or deduplication with fellow community members

650 Topics
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650 Topics

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M.S.KIM

asked in Storage and Deduplication

Data pruning after the DDB Seale in the cloud wasn't performed. (Micropruning Off)

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

1 year ago

Commvault Engineer

asked in Storage and Deduplication

WORM copies retention

Hi guys, In order to configure hardware WORM beside commvault’s WORM, we found this note "If you have multiple storage policies/copies created using the cloud storage pool, make sure to set the same number of days as retention in all the copies." under the link below :https://documentation.commvault.com/11.24/expert/9251_configuring_worm_storage_mode_on_cloud_storage.html Does that mean that all the secondary copies that have to be stored on the WORM storage have to have the same retention ? It got me a little confused. Since in our case, from each Storage Policy we will create a new copy that will be saved to the WORM Storage, do we have to assign the same retention to all the newly created copies ? Thanks in advance

9 months ago

Kegan LevettBit

asked in Storage and Deduplication

Drive stuck at the "Media is being Unmounted" status

Hello,I have a tape that appears to be stuck in one of the library drives. The tape itself reports that it is stuck in the drive. I have tried the Clean / Reload / Unload Drive options to do effect. I also restarted the Quantum tape library to see if that helps, again no luck. Cheers

10 months ago

MauroByte

asked in Storage and Deduplication

How to retire a DDB?

Hi all If I can just confirm something that I think makes sense.In my case, I have a Media Agent that only backed itself up and hosted it’s own DDB.This client no longer backs itself up. It’s retentions have all been met and no data resides on the Storage Policy or the DDB.I want to remove the alert in the Command Centre that notifies me the DDB isn’t being backed up.If I understand correctly, I just do the below in this order: Retire DDB using the ddb_sealing.xml Delete Storage Policy Delete Media Agent and associated Library? Thanks.Mauro

1 year ago

drPhilByte

asked in Storage and Deduplication

Cloud storage https connection

Hi there, I have successfully added the cloud storage (S3 compatible). However, for the time being I am only able to set up connection based on http protocol. When I want to add a new cloud storage library using https there is the error message failed to do verification.To move further, I would like to utilize https protocol. I have self signed certificate from my netapp cloud storage S3 compatible - is it possible to allow using it since I dont have CA issued cert? Could Commvault be forced to use a self signed certificate? What I did try was to “Use this additional setting and set its value to 0 to skip the checking of the server's certificate claimed identity for the cloud libraries”, but it didnt help. Is it possible to check using of this settings? Do you have any suggestions for such situation? Thanks for you ideas.

2 years ago

drPhilByte

asked in Storage and Deduplication

Reservation Status: No new readers can be allocated

Hello, in the log of aux copy job (primary copy(disk storage) to secondary copy (tape library), there is this information: "Reservation Status: No new readers can be allocated, check for additional streams after [900] seconds, pending streams [1]". Can you explain here, what does it mean and possibly how to avoid this? Can this state caused slow backup performance?

1 year ago

jparaujoByte

asked in Storage and Deduplication

run auxiliary copy when full backup is done

Hi guys, I have storage policy SP_A that run daily monday-saturday incremental and sunday FULL.I have a secondary copy in this SP_A that run a scheduled at MONDAY 23h a selective copy of a full weekly backup.I wonder if I can get this behaviour: the same auxiliary copy of a secondary copy with the last full backup of week but that runs just after primary copy finishes.Is it possible get this?

1 year ago

Muhammad AbdullahByte

asked in Storage and Deduplication

DDB QI time threshold.

Hello I have an issue related to DDB as shown below the q&i time is very high, known that the media agent is serving Oracle and SAP dbs only with daily full backup around 23 oracle rac and 18 sap client.library is from flash storage.DDB Disks is ssd and moved to pure storage [ NVMe disks] due to insufficient space on local disks any idea how to maintain this ?

4 months ago

christopheByte

asked in Storage and Deduplication

how to limit network peak ?

Hi,We have some issues with our use of our cloud backend (scality ring).When running backup or data verification the request send by the media agent create some peak of use on the juniper switch (QFX 5100). that causing drop of packet and in result in commvault error reading chunk. we have multiple bad chunk alerts.the network team ask us to set a limitation of the network bandwith to limit peak on juniper switch.how can it be possible to limit the bandwith between media agent and cloud librairies ?kind regards,

1 year ago

Xb-WolfBit

asked in Storage and Deduplication

Tape Full and refresh media

Hi, i have more tape mark FULL, but if I see the contents, tape have more data expired and only 3gb not expired!It’s correct that tape remains FULL until everything data has expired?I can work around the problem configuring Media refresh? if this is solution i see on my copy of storage policy and the flag on tag media “Enable media refresh” are greyed out!!Thanks

11 months ago

Spartan9Bit

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

1 year ago

Nedal1993Bit

asked in Storage and Deduplication

Global Secondary Copy policy on CS 11.24

we have commserve version 11.24 and those option in below image are not appears, Why?New Global Secondary Copy policy New Global Deduplication PolicyOld Versionbelow options we have CS 11.24

1 year ago

neuwiesenerByte

asked in Storage and Deduplication

Decommisioning a DDB to reclaim space on the DDB SSD

We want to use space on an SSD for a new DDB (horizontal scaling) and the old DDB is not being used. It only has jobs with long term retention as it was used for file archiving(onepass). The onepass jobs are not active anymore. Data only needs to be restored. If Commvault doesnt need the DDB for restores, how can I get rid of the DDB as we dont have any backups running.Sealing could be an option. However BOL mentions:The sealed DDB is automatically deleted only after all the jobs (with their data block signatures stored on the DDB) are aged or deleted and the corresponding volumes are deleted from the disk.So the DDB is required for purposes other than the backup. https://documentation.commvault.com/commvault/v11/article?p=12591.htmFor now we will be moving the partition to a different drive. Any ideas?

1 year ago

Farmer92Byte

asked in Storage and Deduplication

Cache-Database and Deduplication-Database are out of sync

Do you see these error for your jobs?When we updated from 11.20.32 to 11.20.60 we started getting Cache-Database errors on various backup types, FileSystem idata agent, NDMP backups and others.The exact error we get is:Error Code: [40:110]Description: Client-side deduplication enabled job found Cache-Database and Deduplication-Database are out of sync.I have a ticket open with support, but I am wondering if the issue is unique to us or if it is happening to other customers as well. Thank you,

11 months ago

tigger2Byte

asked in Storage and Deduplication

Wanting to have tapes that are not full be written to until they are full, and 'full/appendable" designation

I have 2 hopefully related questions to tape writing/usage. please pardon my ignorance :)I am seeing tapes that are “never being written to again” and are not full at all with this message “Marked full/appendable due to media group switching to a different data path”. My assumption is that the tape was writing, and then something happened to the job… but shouldn’t it not be “marked” as anything, and just be ‘appendable” until its full? We have ( in the tape library properties) “mark media appendable” and “use appendable media” set to 90 days”. These tapes are not > 90 days old. is there a way to unmark them or not cause them to be marked “full/appendable” (whatever that means? why full and also appendable?) In the docs for “Default Scratch” media group, I see these settings (below). I want to have any tape that’s “not full yet” to be picked before any other “completely empty” tapes. What setting should I choose? The ‘reused” and “recycled” terms below don’t make sense to me. Cu

11 months ago

Mohit ChordiaByte

asked in Storage and Deduplication

Micro vs Macro Pruning

What is the actual difference between micro pruning and macro pruning in reference to DDB and data aging ? In which scenario micro vs macro pruning is enabled and where i can check it in console or command center?

9 months ago

Paul HutchingsByte

posted in Storage and Deduplication

Replacing Media Agent Hardware

Our Media Agent needs replacing.The replacement is probably going to be a Dell PowerEdge R5xx or R7xx with dual CPU and 128GB RAM and the intention is to use M.2/NVMe for the OS/Commvault binaries and DDB/Indexes but I’d appreciate any guidance and best practise on the build and storage.We’re doing a lot of synthetic fulls with small nightly incremental backups and we aux about 70TB to LTO8 tape every week.The disk library we have right now is approx 50TB.Is there any best practise that would favour NAS/network storage for the disk library over filling the PowerEdge with large SAS disks?With local disk on Windows Server is there a preference between NTFS and ReFS and is there a best practise over mount path size as we’re currently using 4-5TB mount paths carved out as separate Windows volumes on a single underlying hardware RAID virtual disk.Given modern hardware performance can anyone see a definite reason to do any more than buy a single PowerEdge for this other than redundancy/avail

1 year 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?

1 year ago

Ben CVaulter

asked in Storage and Deduplication

How do I erase spare media?

How do I delete multiple spare tape media for reuse?

2 years ago

RSJ

asked in Storage and Deduplication

Is it possible to create a storage policy to backup data to tape library in weekly basis with manual barcode/media labels?

I am looking for a documents that we can setup storage policy to backup data to tape on a scheduled basis like tape#1 for week1 of the month, tape#2 for week2 of the month etc.. in round robin scenario from 1 backup job only Thank you

1 year ago

AbrahamBit

asked in Storage and Deduplication

Help Needed on Error Code: 62:342

Dear All,Please I need help in resolving an issue with my commvault server. This is the error am getting;Error Code: [62:342] Description: Failed to mount media with barcode [A99801], side [A_780], into drive [IBM ULTRIUM-TD5_20], in library [STK L180 1] on MediaAgent [TMwas02]. SCSI Operation: Open Drive Device. Reason: Encountered an I/O error while performing the operation. Advice: Please use the following troubleshooting utilities 1.TapeTool for Tape device-related problems. 2.LibraryTool for Library-related problems provided in the MediaAgent's installation folder to perform diagnostics on this device. Source: backup, Process: MediaManagerPrior to this issue, the backup schedules run smoothly. I have noticed this error only comes up when I run back jobs on media agents ( I have eleven) in the commcell with exception of the commserv’s media agent.The status of the media library attached to these media agents shows “ready”Any help will be greatly appreciated.Thank you.

11 months ago

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