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Storage and Deduplication

Storage and Deduplication

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

725 Topics
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725 Topics

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xiwenByte

asked in Storage and Deduplication

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

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,

1 year 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

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?

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

virgilByte

asked in Storage and Deduplication

Hardware encryption on LTO

Hi I would need feedback on the impacts of enabling Commvault harware encryption on LTO.- Slowdowns ?- CPU load ?- Volumetry in addition to be expected ?- and more…Thanks a lotregards

1 year ago

VitasBit

asked in Storage and Deduplication

Pruning DDB performance issues

DDB lookup times spiked, SSD are old SATA and under heavy load seem to be very slow. Is pruning only related to a data that is deduplicated? If ORA or SQL DB transaction logs being written to non deduplicated storage policy is pruning at all relevant to that data? How much DDB is being used during pruning? Is it very DDB intensive process?

1 year 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

2 years ago

MarwaBit

asked in Storage and Deduplication

Move job data from disk library to another disk library

Hi All, I want to move specific job data from its media to another disk library like staging in Networker , how can I do that in Commvault ?

1 year ago

DanielDai

asked in Storage and Deduplication

where to config "preferred setting" in the "Select mount path for MediaAgent according to the preferred setting" of the Library properties

I’d like to consult where to config “preferred setting” mentioned in “Select mount path for MediaAgent according to the preferred setting” option of the library properties? thank you in advanceBest regards

2 years 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

Baba ImaniByte

asked in Storage and Deduplication

Creating a Storage Policy Copy with Deduplication vs Creating a Deduplication Enabled Storage Policy Copy

Hi guys,This might seem stupid but I’m a bit confused by these two documents on the Commvault website that talk about deduplicating policy copies. If I’m getting the below articles correctly, the difference between; Creating a Storage Policy Copy with Deduplication https://documentation.commvault.com/commvault/v11/article?p=12446.htmand Creating a Deduplication Enabled Policy Copy https://documentation.commvault.com/commvault/v11/article?p=14132.htmis that the former is created using a Storage Pool (dedup engine exists) whilst for the latter the Deduplication location is not an existing dedup engine (storage pool) but just a local folder on the media agent? If the latter is correct and I want to use it to deduplicate additional independent copies e.g. Weekly Fulls and Monthly Fulls on independent libraries against the Primary Copy data, is there a downside to it?Need some assistance on this.

2 years ago

stevegBit

asked in Storage and Deduplication

Cloud Libraries and AWS Combined Storage Tiers

Hey guys,I’m currently using S3 IA for my cloud libraries (dedupe used) and looking to reduce costs. The combined storage tiers look promising, in particularly Intelligent Tearing/Glacier. Has anyone got any experience in using this, and can offer some insight into its suitability? Cheers,Steve

2 years ago

JM-Byte

asked in Storage and Deduplication

Dedupe & gzip compression. Does the --rsyncable option help?

Anybody used gzip with --rsyncable to increase dedupe efficiency and does it actually help? People still like to do app/database dump and pickups its all good until they compress the dumps and you convert the pickup backup from tape to disk dedupe. Since dedupe doesn’t like compressed files as a source there’s rumors that --rsyncable option will help here.This option uses a totally different compression algorithm that's rsync friendly and only increases the compressed size by about 1% when compared to the regular flavoured gzip file.

1 year ago

DavidBByte

asked in Storage and Deduplication

Cloud Storage alert report mount and prunning errors/issues

Have some alerts that just started showing up in the past couple of days for a particular AWS cloud libraryCloud MountPath(s) without pruner MediaAgent [ {Library[Lib1] MountPath[[store2] s3-backup] DeviceName[Device_94]} ] (yesterday and today. Same time each day)andFailure Reason: Failed to check status of parent directory, media agent cannot access the storage. (started on the 19th and occurs roughly at the same time each day) (Additionally this error first occurred when the cloud storage was associated with a different Media Agent. )The library has two mount paths, and the mount error mostly comes from the 2nd path. Although it once reported the other.Checked the jobs for the storage policy related to it, and it seems that nothing is missing.Have looked through the logs and other than the similar alert text, I don’t see what could be causing the alerts. There are multiple storage policies using the same Media Agent and the same S3 bucket. None of the others are having this prob

1 year ago

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?

4 months ago

Kevin O'NeillBit

asked in Storage and Deduplication

On Prem Aux copy to S3?

We are looking into adding an additional layer of offsite backup storage. Amazon S3. The current idea would be add a 3rd copy to an existing storage policy. This copy would reflect the AWS S3 library. Can I Aux copy on premise backup data using physical on premise media agents directly to S3 Any suggestions would be appreciated. Thank you

2 years ago

Adel BOUKHATEM

asked in Storage and Deduplication

Synchronize All DDBs grayed out

Hi Guys, I hope everybody is fine !So I ran a health report on my Commserve and on the “DDB Performance and Status” section in the “readiness” column, it shows: Needs resync.When I try to resynchronize the DDBs from Storage Resources→ Deduplication Engines, the “Synchronize All DDBs” is grayed out.The DDB status is showing active.Does it mean that as long as it is online I can’t run the synchronization, or I missed something? Thanks !

1 year ago

JamieK

asked in Storage and Deduplication

MA hardware refresh and library mount paths move

Hi all,I’m looking for some steer with regards to a disk library and mount paths move between MediaAgents. I may be over-thinking this but just looking for clarification.My client has a MediaAgent which to be decommissioned. The mount paths are volumes presented from the SAN which have also now been presented to the new MediaAgent. (Offline in Disk Mgmt on new MA awaiting action).Is this just as simple as following the Migrate Shared Disk Libraries option in Disk Libraries - Advanced to move the mount paths configuration to the new MediaAgent or are there any gotchas to be aware of? Normally, I’d just go through a mount path move process but can’t in this case.Thanks in advance.

2 years ago

Eduardo BragaByte

asked in Storage and Deduplication

DDB Lookup and Source side disk cache

Can the use of source-side disk cache theoretically reduce the DDB lookup of data protection jobs? Clients and MA are on the same LAN.

1 year ago

lgriswoldBit

asked in Storage and Deduplication

AuxCopy between 2 HPE StoreOnce Catalyst

We have 2 data centers, each having a HPE StoreOnce Catalyst Appliance and configured to a media agent in the data center.DC1- dc1mediaagent <> DC1 HPE StoreDC2-dc2mediaagent ↔ DC2 HPE StoreNow we want to get an AuxCopy going between DC1-HPE Store to DC2-HPE Store and another DC2-HPE store to DC1-HPE Store. We have tried configuring the libraries and sharing them to the other media agent. but the AuxCopy fails with Chunk errors Failures constantlyWe had no issues using Synology arrays between DC1 and DC2.Any ideas on best practice with HPE StoreOnce appliances? ThanksLarry

1 year ago

Winston WVaulter

published in Storage and Deduplication

Changing iRMC (HyperScale Appliance HS1300 & HS3300) Password using IPMITool

The following procedure allows you to safely update Fujitsu Appliance iRMC Password which won't impact operations such as: RHEV-M Hardware failure alerting Important Note - for the HyperScale Appliance\, Commvault leverages the IPMI protocol to monitor the physical hardware by design\, and reports back to Command Center if there is a fault. IPMI - Intelligent Platform Management Interface is a set of computer interface specifications for an autonomous computer subsystem that provides management and monitoring capabilities independently of the host system's CPU, firmware and operating system. The following procedure are applicable for the following use cases: Updating iRMC Password for security purpose Resetting iRMC Password if it is forgotten or lost IPMITool is installed at the Guest OS level (Redhat OS)Updating iRMC Password First, you will need to establish a SSH session onto the Guest OS (HyperScale RedHat 7.#) Then input the following command: # ipmitool user set password

7950

2 years ago

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