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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

M
MarkRelf-DB
asked in Storage and Deduplication

Migrate Cloudlib from AWS to Azure

Hi Community - We have a circa 2PB Cloudlin currently writing to AWS S3.  Our customer is asking if we can migrate this data into Azure. Has anyone out had experience of the best way to accomplish this - I am thinking doing this using AUX copies is going to take rather a long time to copy 2 PB!!

1
J
Vaulter
1 year ago
K
Bit
Kevin O'NeillBit
asked in Storage and Deduplication

DR backup to CV cloud

We are currently preforming a DR backups to On-Prem (multiple locations) and CV cloud. As viewed in cloud.commvault.com it appears that we are limited to only 5 iterations of the CV DBs. In “DR backup” options we have 20 set, but that seems to only be On-PremQuestion> Is there a way to expand the amount of CV cloud backups retained? 

5
K
Bit
1 year ago
K
Byte
Kamil
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

7
Mike Struening
1 year ago
L
Commvault Certified Expert
LukaszCommvault Certified Expert
asked in Storage and Deduplication

Delete Mount Path associated to DDB

Hello there,I’m have a minor issue, I cannot delete unused Mount Path, since it’s used by DDB. There’s a few of MPs under Disk Library dedicated to this DDB. In the DDB properites I can only remove whole Disk Lib, which is not the point.  CommCell says that in order to delete this MP, I need to delete each Storage Policy Copy which is referencing to this Disk Lib. It’s not an option neither.   Logs are saying something similar: EvMMConfigMgr::onMsgConfigStorageLibrary() - Error [470, Mount path is used by a Deduplication database.] occurred while deleting the mountPath[xx] ###### MLMMountPath::deleteMountPath() - :mlmmountpath.cpp:6170: Failed to delete mountpath [xx] due to error [470, Mount path is used by a Deduplication database.].###### MLMMountPath::deleteMountPath() - :mlmmountpath.cpp:5593: Failed to delete MountPath from database for Id [xx] due to error Mount path is used by a Deduplication database.:470  Do you have ideas, workaround to delete single MP in that situation? 

14
Mike Struening
1 year ago
T
Byte
TP_EricksonByte
asked in Storage and Deduplication

Backing up Exchange Databases from HD Library to tape

We had to back up some exchange Dags for short term retentions to an 3Par Disk library. The Mount Path is from one of our media agents where i can see what's stored on the 3Par. My boss wants me to back up the month of September that we have on disk to tape, so we can clear it out from the 3Par for another month of Storage.  Would the best way to back this up to tape would be to create a subclient on the media agent the drive is mounted to , target the Data Chuncks for the time of the month he wants backed up, and assign it a storage policy that will back it up to tape, or will that not capture the data we want from the 3Par?

4
Mike Struening
1 year ago
M
Byte
MauroByte
asked in Storage and Deduplication

Disable Deduplication with VAST storage.

Good day allThis one is a bit complicated, so will try keep it as brief as I can.The customer has a faulty storage device with the backup data on it.They’ve received a loan VAST unit which uses it’s own deduplication engine in addition to the Commvault dedupe in place. We would like to turn the Commvault deduplication off as we’re having errors on the DDB which may require us to seal it.The concerns I have are below, and I’m hoping to get some clarity on it.The faulty storage and VAST storage are in the same Data Centre (DC1).We want to turn DDB off in this DC and do a Move Mount Path(s) from the faulty storage to the VAST.At the same time, new backups are running to the VAST device on different Mount Paths.When this is all complete and the faulty storage is replaced (it won’t have it’s own DDB capabilities, so Commvault will handle that), we will move the VAST Mount Paths back to this storage.With Commvault DDB off, does non-deduplicated data get deduplicated during a ‘Move Mount Path

7
Mike Struening
1 year ago
Fernando Souza
Byte
Fernando SouzaByte
asked in Storage and Deduplication

Auxiliary Copy error

Hello Guys,I have a problem with the copy being made to the another site.Version CommServ: SP20 - 11.20.73I saw in another topic the same problems, and saw that update to SP21 solve this problem.Ihttps://community.commvault.com/technical-q-a-2/auxilary-copy-not-copied-some-jobs-239What do you think? Do i update to version SP21?

11
Mike Struening
1 year ago
J
Byte
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.     

13
Mike Struening
1 year ago
S
Bit
Sérgio BatalhaBit
asked in Storage and Deduplication

How i delete empty DDB partition ?

Hello,I have a new DDB with 2 partitions but i only want 1 partition. The ddb is empty, how can i remove one of this partitions?  

1
Mike Struening
1 year ago
J
Bit
J.B.Bit
asked in Storage and Deduplication

System Created DDB Space Reclamation schedule policy

Hello,after upgrading from V11FR20 to V11FR24 I noticed a new schedule policy named “System Created DDB Space Reclamation schedule policy” which was disabled by default.I basically know what the Space Reclamation functionality is about, and the policy has all our deduplication engines assigned. But when initializing this policy it finished in less than a quarter of an hour and from the logs only one dedup engine was processed. Another manual start just gives below error message. Can anybody explain to me what this schedule policy is about and how it is supposed to work? 

6
J
Vaulter
1 year ago
D
Byte
drPhilByte
asked in Storage and Deduplication

Mount Path does not have enough space/Disk Library running out of space

Hi all,after some time we are facing another serious issue. There is no available space on the disk library. Ayayay.We have tried to find if there are any unprunable jobs. There were some of them and therefore we have set option to ignore cycle retention for disable subclients. Unfortunately, only small amount of GBs have been aged. Now, there is a question what to do next. I have no idea how to find what can be deleted in order to make more free space for the backups. Moreover, there will be quit a big deduplication ration, so even manual deletion of some jobs do not have to be useful. Maybe, one useful information can be that during the last month there were increase in data cca 10TB, which is 10 percent increase. Is there possibility to figure out what data did this increase? Is there any generule rule or useful tool within the Commvault to fight with this issue?

10
Mike Struening
1 year ago
S
Vaulter
shaleyVaulter
asked in Storage and Deduplication

How do I troubleshoot slow backups or restores coming from or writing to disk?

I have general slow performance from my backend storage.  How can I determine the issue on my backend storage?

6
Mike Struening
1 year ago
Fernando Souza
Byte
Fernando SouzaByte
asked in Storage and Deduplication

Add Library Fujitsu LT20 to commserv

@Mike Struening Hello Guys,for add a new physical(first) library to a CommCell, what´s the best procedure and sequence to add?The customer need to send the historical data to a physical library(Fujitsu LT20) and generate new Full Backup, and  need to send 3 times (backups full) before erase data.

13
Mike Struening
1 year ago
A
Byte
AlexzyByte
asked in Storage and Deduplication

HQ-VM-CommServ 32:162 Replacing the active media for job [4157411] from Mount Path [[dr_media_svr2] V:\DRMA02AR_LUN06] to [[dr_media_svr2] U:\DRMA02AR_LUN05].

HQ-VM-CommServ - 32:162 - Replacing the active media for job [4157411] from Mount Path [[dr svr2] V:\DRMA02AR_LUN06] to [[dr svr2] U:\DRMA02AR_LUN05]. What does this mean? AND MAKING THE JOB TO RUN VERY SLOW WITH LOW Current Throughput: OF 0.3:

1
L
Byte
1 year ago
E
Byte
ElmerTByte
asked in Storage and Deduplication

Clarifications after restoring the DR backup to another server

Hi,I restored the Commserver DR backup to another server. This is the first time I’m doing this so after restore I noticed that the configured disk and tape library in the destination server has changed reflecting the disk and tape library from the original server. I tried to add the destination server as another media agent but it is not allowing. How do i proceed to use the tape and disk library in the destination server after the restore?Please advise.  

21
Mike Struening
1 year ago
Fernando Souza
Byte
Fernando SouzaByte
asked in Storage and Deduplication

Remove DDB without jobs

Hello Guys,In my Lab i want to remove a DDB that was seal and is not in use and has no more jobs associated with it.  

21
Mike Struening
1 year ago
Ken_H
Byte
Ken_HByte
asked in Storage and Deduplication

Unexpectedly sending data to storage meant for once per year backups

Hello everyone,I have a question about storage policy configuration.  I take incremental backups every day but Friday when I run a full backup.  Retention is:Incrementals: 2 weeks Full backups: 30 days Monthly fulls: 1 year Yearly fulls: 3 yearsI have a primary and secondary site but the secondary site has a much smaller media agent and I actually ran out of space.  To address this, I added CommVault Metallic cloud storage with the intent that the once per year Yearly Full backups would go to the cloud.  Just today I noticed that 10TB of data is being replicated to the Metallic Cloud storage and I can’t explain why.  Can you look at these pictures of my configuration and explain where I went wrong?Ken   

5
Mike Struening
1 year ago
M
Byte
MubaraqByte
asked in Storage and Deduplication

AuxiIllary copy slow and architecture review

Hi, Everyone. I have a customer with this exact problem. After the Commvault refresh/reconfiguration which was concluded some months back, we had some issues backing up to tape which we finally understood was related to the tape drives we were using then. We have resolved the issue with the drives but we are still having copy to tape running at a very low speed (As low as 13GB/hr). Kindly assist us with below. We have sister companies running this same Commvault and we want to know how their setup is different from ours that make them better. We need to review our architecture to be sure the copy to disk and copy to tape can happen at the same time from the primary source. The difference in storage in terms of I/O and disk rpm from what we have here and that of our sister companies. Is there any way i can help them, please?

17
Mike Struening
1 year ago
Fernando Souza
Byte
Fernando SouzaByte
asked in Storage and Deduplication

Release space

Hello Guys,i ran Data Aging and Disable/Enable scheduler backup job buit don´t released space.What other procedure should i do, Can someone know about this? Thanks

5
Scott Moseman
Vaulter
1 year ago
P
Commvault Certified Expert
PatrikCommvault Certified Expert
asked in Storage and Deduplication

Encrypted Mount Paths?

Hi, Is it supported, and if so recommeded, to use third party encrypted diskvolumes as Commvault Mount Paths in a DiskLibrary? /Patrik 

3
Mike Struening
1 year ago
Mohit Chordia
Byte
Mohit ChordiaByte
asked in Storage and Deduplication

Cloud Workloads Backup Strategy

Hi Community, I want to know about the strategy which we can take for data protection of cloud workloads using CommVault .Do we need to deploy CS in cloud or we can use on-prem cs for backup of cloud as well as on prem workloads ? if yes , How ?Please share if there is any sample reference architecture diagram for backup of cloud workloads ?What type of backup library to be used for cloud workloads backups ?

7
Mike Struening
1 year ago
D. Kerrivan
D. Kerrivan
asked in Storage and Deduplication

MediaAgent iSCSI disk library mount marked offline, but is present.

This has been driving me mildly nuts for the past 3 days post a power shutdown for our site.We had some challenges with our storage network, that prevented iSCSI comms for a few hours after we powered up our site post some scheduled electrical work.We solved that by the software equivalent of a power on/power off on the switches in question (two unrelated port channels to our SAN were disabled/re-enabled). Great. iSCSI works again with all hosts.The MA in question, a VM, is borrowing space on a temporary basis from a newer array, as I am doing a lot of migration work, and is mounting the volumes in Windows via iSCSI as opposed to using an iSCSI mounted data store in VMWare which is treated as an HDD by the OS.   Keep in mind, this was all working swimmingly before this past weekend.  For the past three days, CV is convinced that the 5 mount points in question are offline, and do not have a controller.  If you go to the OS, and browse, you can drill down as deeply into the mounted volum

12
Mike Struening
1 year ago
A
Byte
AlexzyByte
posted in Storage and Deduplication

Error restoring DDB Store files. Restore job(s) [] encountered one or more errors.

Error restoring DDB Store files. Restore job(s) [] encountered one or more errors.2 please help help ugent…..

1
Mike Struening
1 year ago
P
Byte
Peter RuppByte
asked in Storage and Deduplication

Synth Full on Seconday Copy Storage Policy

Hi,we backup a File Server in China with Inc. On Saturday there is synth Full.The Aux Copy of the Synt Full ( 1.8 TB )( to Germany is really slow.Can i schedule the Synt Full on the secondy Storage Policy ?In China always incremental, aux copy to germany and then in germany the Synt Full.We need a full for the tape backups.RegardsPeter Rupp

3
Scott Moseman
Vaulter
1 year ago
S
Byte
Sudharshan KumarByte
posted in Storage and Deduplication

Double DeDupe for Aux Copy?

Is there any reason we are doing the Double Dedupe for Aux Copy(DASH Copy)? What is the benefits for us.   

6
Scott Moseman
Vaulter
1 year ago

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