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Storage and Deduplication

Storage and Deduplication

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

675 Topics
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675 Topics

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drPhilByte

asked in Storage and Deduplication

Drives in the tape library went offline

Hi there, could you please help me what to do if all drives within the tape library went offline? The offline reason seems to be very strange: [Cannot communicate with Media Mount Manager Service.Please ensure that.a. The MediaAgent is reachable from CommServe.b. All MediaAgent services are running.] A - Checked that MA is reachableB - Checked that all services are running What can help us to make drives online? Also verified in Windows device manager that drives are present and visible.

1 year ago

Ken_HByte

asked in Storage and Deduplication

Showing library storage use over time

Hello everyone,At my DR site I use HP MSA disk devices for CommVault backup storage and they are currently over 86% full. I have asked my manager to add the cost of another MSA to the budget and she’s asking for growth rates to ensure that one MSA will be sufficient. I’m searching for that information and am not able to find it even though (I would have thought) that this is a pretty basic information. I did find the “Disk Library Growth Trend” report but don’t trust its numbers as the used space and free space increase at the same time despite the fact that the total storage has remained constant. I’m not sure where it’s getting its information but, well, it just doesn’t make sense. Screen capture below.So my question is: How can I find a storage growth rate to use for media agent capacity planning?Ken

1 year ago

Rajesh KumarBit

asked in Storage and Deduplication

any how i can set a limit Auxiliary copy jobs, once fist 5 jobs get copied then only next copy job should start. Using stand alone tape library

lets say there are 1000 jobs needs to move on tape, i want to take the secondary copy of jobs on date wise it should not pic random jobs for aux copy.

1 year ago

Nedal1993Bit

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

1 year 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

1 year 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.

1 year ago

johanningkByte

asked in Storage and Deduplication

How is backup encryption handled ?

Hi guys,I’m struggeling with encryption in a mixed environment.On the GlobalDedupePolicyCopy, I did not activate encryption.on the Client Advanced Property I enable encryptionon the subClient Property I enable encryption on Network & Media.executed Jobs are listed as ecryption enabled.does this mean, that the backups have been encrypted ? are the backups deduplicated against unencrypted backups within the same StoragePolicy ? (which might result in a mix of encrypted and unencrypted data for the same job) Since encryption is defined in the GDP and I already have two DDB partitions per MediaAgent, do I have to deploy additional MediaAgents to host the dedicated encryption backups, in case I want to enable that on the Storage Policy ?best regardsKlaus

1 year 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

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

KelvinByte

asked in Storage and Deduplication

Auxiliary copy is stuck at 30%

Our weekly secondary AuxCopy is stuck at 30% since this weekend (so that it is blocking all the primary disk to disk incremental copies), with the below 2 error messages Thinking it might be some ports communication issue between the Media Server (S01190) where the tape library is attached to, and the CommCell Server (S02116), so I did the below ports check between the 2 Servers: Telnet from the Media Server (S01190) to the CommCell Server (S02116)Port 8400 OKPort 8401 OKPort 8403 OK Telnet from the CommCell Server (S02116) to the Media Server (S01190)Port 8400 OKPort 8401 Not OKPort 8403 Not OK Now, before I speak to our Network/Security administrator who have recently installed SentinelOne AV on both of the above 2 Servers, I’m wondering if I’m heading the right direction, and if I have done all the ports checking ? Thanks,Kelvin

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?

1 year ago

MontyBit

posted in Storage and Deduplication

Magnetic Library Defragmentation

I have read a couple or articles on CommVault Online that say defragmentation of the Magnetic libraries is a good idea. Diskeeper, now Dymax IO, was listed as a certified product for online volumes. I am wondering if others defrag theire libraries for performance purposes, and what products they use. I have read in older articles that the native windows defragmentation tool can be used. Also it states that it should be done outside of backup hours (makes sense). Any feedback or information would be appreciated. Thanks

1 year ago

virgilByte

asked in Storage and Deduplication

Move tape to default scratch pool automaticly when data is aged

Hi, i would like to know if is possible to move tape to default scratch pool automaticly when data is agedRegards

1 year ago

Fernando SouzaByte

asked in Storage and Deduplication

Remove Sealed DDB partition

Hello, I need to remove the Sealed DDB Partition in the commvault.This DDB isn´t in use, the last write in 2015, just for a test.someone has a procedure to remove?and i have another DDB partition in the same DDB, and is recording.i need just remove this DDB Partition because the sever will be turn off.

1 year 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.

1 year 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?

1 year ago

drPhilByte

asked in Storage and Deduplication

System Created DDB Verification schedule policy - use of streams

Hi there, is it safe to limit the number of streams to be used in parallel for System Created DDB Verification schedule policy? I am asking because in our case this verification policy consumes 30 streams out of 30 streams. However, there is set up use maximum number of streams, why is 30 limit then?Secondly, I would like to discuss Data Verification Options. Which option do you use preferably? Would it be enough to use only Verification of Deduplication Database instead of Verification of existing jobs on disk and deduplication database?

1 year ago

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