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Storage and Deduplication

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

  • 725 Topics
  • 3,531 Replies

725 Topics

S
Bit
SajeedBit
asked in Storage and Deduplication

Total Data Size on Disk is zero

Newly created DDB engines shows application size as 800 TB and Total Data Size on Disk as zero.Same issue with few newly created DDBs. we are on V11.28.56

4
S
Bit
4 months ago
J
Byte
justin000Byte
asked in Storage and Deduplication

Space reclamation / orphan data cleaning against cloud storage library

Hi all,Wondering if by chance anyone has experience running DDB space reclamation with orphan data cleanup against a cloud library. We have a cloud library in Azure cool tier which we expect may have some data that was not pruned successfully, thus increasing our storage consumption in Azure. The deduplication database for this data lives on local storage.We’d love to run a space reclamation with orphan data cleanup against this cloud library, but we’re concerned about the possible cost of storage transactions against the Azure cool library.Has anyone performed this operation before and observed the related cloud storage costs? For reference, we have just under 100 million blobs and a total of about 400TB of storage utilization in Azure. Many thanks for any input folks may have!

2
J
Byte
4 months ago
L
Byte
LaurentByte
posted in Storage and Deduplication

LTO9 - Media calibration / Characterization

Hi and happy new year to all of you !I would like to know if some of you have already implemented some LTO9 drives / tape libraries, and would love to get your feedback about it using Commvault.My experience on the LTO9 media, using dual tape drives tape libraries, is quite bad.The Media calibration / optimization / characterization phase that any new LTO9 media has to deal with is a pain, on my side.Looks like on the first mount of a media -- let me reword it in my ‘old guy’ words -- it has to be somehow formatted to be able to be used by your favourite backup software. Below a link to Quantum’s FAQs about this :https://www.quantum.com/globalassets/products/tape-storage-new/lto-9/lto-9-quantum-faq-092021.pdf Short calculation : 50 LTO9 brand new tapes may require up to 2hours each of ‘calibration’ before they can be used. So this equals to 100 hours of ‘calibration’ before you could use the full 50 tape pool.. 😱  My 1st issue was that I had to adjust all the mount timeouts in that LT

9
dude
Byte
4 months ago
G
Bit
GordABit
asked in Storage and Deduplication

Settings for WInSCP and HyperscaleX

Hi, for connecting to a HyperscaleX appliance to drop and pickup files, are there any tweak settings?I’ve been toggling between \bin\bash and default for shell and using SCP/22 and authentication works but the session never gets going. ThanksG

5
G
Bit
4 months ago
J
Bit
JanErikBit
asked in Storage and Deduplication

The media side mounted is write-protected

HiI'm not an expert user.After the automatic upgrade job to version 11.28.8, the backup jobs failes with the following error:Error Code: [62:308] Description: The media side mounted is write-protected. Source: backupserver, Process: cvdStatus: Mount ErrorLibrary Name: AutoDiskLibDrivepool: DrivePool(backupserver)1Drive: Folder_03.28.2019_11.26Media label: CV_MAGNETICFailure Reason: The media side mounted is write-protected.Under the library all mount paths have Read/Write AccessProperties for the mount path under Allocation policies are marked Maximum Allowed Writers.Tried manually upgrade to version 10.28.10, but nothing changed.This is a disk library, not tape. The library is about 89% full, but still have about 7,5 TB free space on the given mount path. How to enable read write? 

6
Lukas3D
Byte
4 months ago
K
Bit
kumaraBit
asked in Storage and Deduplication

Disk storage occupied

Hi Team,As per the snapshot, total data written 1.33 TB  out of 10TB . But free space showing me 46 GB only.The same like showing me other mount points. But when check the physical size it is occupied around 10 TB only. Please help me on this.

3
Zubair Ahmed Sharief
Vaulter
4 months ago
A
Byte
AjalByte
asked in Storage and Deduplication

Reclaiming disk space

hello ,  we are standardizing our storage policies as part of that we are changing the retention set for the storage policies , most of them are lower retention than previously set if i run data aging job will it help to reclaim the storage space 

1
O
Vaulter
4 months ago
S
Bit
SomeUniqueName
asked in Storage and Deduplication

New E2812/Media Agents recommendation

I’m slogging through a CV hardware upgrade.  My company is “trying” to find $$ for training...but so far no joy, so I’m winging it.I have a new NetApp E2812, two new media agents, and a shiny Brocade FC switch to bind them all together.My immediate question is, do I create two volumes on the E2812 and mount one on each MA?  Or can I create just one volume and let both MAs read/write to it simultaneously?  Typically, sharing a volume like that across multiple Windows servers leads to trouble, but can the CV media agents handle that sharing?I like the idea of a single volume letting both MAs access all of the available disk space. That alleviates the need to balance my backups across the different volumes. Does anyone have any helpful pointers for me?  Much obliged.

3
S
Bit
4 months ago
P
Byte
Pedro LagesByte
asked in Storage and Deduplication

Reporting CLI

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.

1
Damian Andre
Vaulter
5 months ago
D
Bit
Dave HarrisBit
asked in Storage and Deduplication

Global Deduplication Storage Policies don't appear in the Subclient Storage Policy pull down list.

I cannot associate a Global Deduplication Storage Policy to my Subclient,  it doesn't appear in the Storage Policy pull down list.   CommServe Version: 11.28.44.  

2
D
Bit
5 months ago
K
Byte
Kyle32043Byte
asked in Storage and Deduplication

Clarification on Deleting Jobs on Tape

 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/encryption keys associated with that file and cannot read that block of data on the tape? Recently I noticed an option in the CommCell browser where I can delete content of an entire tape. Storage Resources > Libraries > Tape Library > Medi

1
Jos Meijer
Commvault Certified Expert
5 months ago
K
Bit
kumaraBit
asked in Storage and Deduplication

DDB threshold reached max limit

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. 

1
M
Vaulter
5 months ago
B
Bit
BillKBit
asked in Storage and Deduplication

DDB reconstruction

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

4
F
Byte
5 months ago
A
Byte
ameersyedByte
asked in Storage and Deduplication

Cloud library migration from Azure one tenant to another

We are running on Commvault 11.20.Currently backup jobs are using Azure Blob cloud disk library, with container default setting.  (On Azure is container type is Cool). We would like to move this storage to another tenant with different storage account with Cool/Archieve type container.  Looking for a best approach to migrate the storage, if it can be done from Commvault and not from Azure.

8
A
Byte
5 months ago
G
Byte
gogi100Byte
asked in Storage and Deduplication

problem with Aux copy job Failedi have [13:138] [40:91] [40:65]

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 incorrect. Failed to Copy or verify Chunk [245216] in media [CV_MAGNETIC], Storage Policy [CommServeDR], Copy [Primary], Host [DRI-COMMVAULT.dri.local], Path [\\192.168.99.51\RezervnaKopija\MX19RW_07.26.2022_08.59\CV_M

14
Damian Andre
Vaulter
5 months ago
K
Vaulter
KaranVaulter
asked in Storage and Deduplication

Restore from Combined Storage Tier Cool/Archive

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?    

4
Nikos.Kyrm
Byte
5 months ago
M
Byte
Michal128Byte
asked in Storage and Deduplication

Immutable storage for Commvault in Azure with on-permises Media Agent.

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 

4
M
Byte
5 months ago
R
Byte
RitwickByte
asked in Storage and Deduplication

/ws/ddb and /opt/commvault/MediaAgent64/IndexCache are not mounted anymore after the faulty SSD replacement

/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

2
R
Byte
5 months ago
S
Byte
Srikanth KByte
asked in Storage and Deduplication

AUX copy jobs failing

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    

1
S
Byte
5 months ago
R
Bit
rutynaBit
asked in Storage and Deduplication

Problem with media agent

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?

3
D
Byte
5 months ago
M
Byte
MOGFREYByte
asked in Storage and Deduplication

failed to read db error when adding nfs mountpath

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?

2
M
Byte
5 months ago
J
Byte
JQEIByte
asked in Storage and Deduplication

Usage of HPE StoreOnce as a disk library

Hi, I need some info about the usage of HPE StoreOnce as a disk library. Something like this:https://documentation.commvault.com/11.24/expert/102869_add_hpe_catalyst_storage.htmlCurrently we're using one HPE StoreOnce catalyst store for a disk library. This gives us some single point of failure issue and we need to try and remediate this. So I would like to know what options there is. Like could we have a disk library with catalyst stores from multiple HPE StoreCnce boxes? Like a grid consisting of 4MA's with storage from 4 HPE StoreOnce. So in case there's some issue/maintenance we take down one HPE StoreOnce box at a time and backups will continue to run.

5
D
Byte
5 months ago
A
Byte
Allan0105Byte
asked in Storage and Deduplication

Mount path is showing offline

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.

9
H
Bit
5 months ago
N
Bit
Nedal1993Bit
asked in Storage and Deduplication

DDB with secondary copy

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.​​​​​​

5
Scott Moseman
Vaulter
5 months ago
B
brucquat
asked in Storage and Deduplication

DDB Verification Operation failed

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]: Mount failed for mount path, please check if the mount path is accessible on Data Server. Check the Media Agent logs for detailed err

5
Jos Meijer
Commvault Certified Expert
5 months ago

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