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Storage and Deduplication

Discuss any topic related to storage or deduplication best practices

  • 993 Topics
  • 4,396 Replies
993 Topics
E
Byte
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.    

2
Scott Moseman
Vaulter
2 years ago
R
Bit
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.

2
Mike Struening
Vaulter
3 years ago
N
Byte
NillesByte
asked in Storage and Deduplication
Aux Copy between 2 hpe storeonce catalyst -- > Status running but not progress

Hi All,for all member or technical expert, we need your advice or suggestion for problem that occours while the aux copy jobs running between 2 library HPE Catalyst with a different site.The status “ Running “, but the progress stuck at 0%, from job logs we see statement log as below;2685 589d 02/02 12:48:45 145 Received AuxCopy alive confirmation response22685 589d 02/02 12:51:46 145 Sent alive request to AuxcpyMgr22685 589d 02/02 12:51:46 145 Received AuxCopy alive confirmation response22685 58a7 02/02 12:51:48 145 TPool [SdtHeadThPool]. Tot [0], Pend [0], Comp [0], Max Par [0], Avg Work Time [0.00 s], Avg Wait Time [0.00 s]22685 589d 02/02 12:54:49 145 Sent alive request to AuxcpyMgr22685 589d 02/02 12:54:49 145 Received AuxCopy alive confirmation response22685 58a7 02/02 12:56:48 145 TPool [SdtHeadThPool]. Tot [0], Pend [0], Comp [0], Max Par [0], Avg Work Time [0.00 s], Avg Wait Time [0.00 s]22685 589d 02/02 12:57:52 145 Sent alive request to AuxcpyMgr22685 589d 02/02 12:57:52 145

2
R Anwar
Vaulter
2 years ago
D
Byte
drPhilByte
asked in Storage and Deduplication
Inline Copy caveats

Hi all,please make me the topic of inline copy clear. I understand, that if primary copy fails, secondary copy (aux copy) fails as well. However, if for some reason the storage for the secondary copy was not accessible and secondary copy was not able to carry on, what would be with the primary copy?

2
D
Byte
3 years ago
G
Giri
asked in Storage and Deduplication
DDB can be create the shared datastore ?

Can we use the Shared disk to create the DDB on Linux machines 

2
Mike Struening
Vaulter
3 years ago
Fernando Souza
Byte
Fernando SouzaByte
asked in Storage and Deduplication
Library cleaning tape procedure

Hello,The customer has purchased a tape library Fujitsu LT20.Is there an automatic tape cleaning procedure?

2
Fernando Souza
Byte
3 years ago
Henke
Byte
HenkeByte
asked in Storage and Deduplication
Change path

We have some trouble with paths to a Synology nas going offline.Currently we have the DNS name in the path. I’d like to change that to referring the IP address instead. I’m pretty sure I can do it without any issues but better safe then sorry. Anyone see any risks of changing the \\DNSname to \\IPaddress for the path(s)? //Henke 

2
Scott Moseman
Vaulter
3 years ago
Melissa Adams
Commvault Certified Expert
Melissa AdamsCommvault Certified Expert
asked in Storage and Deduplication
Implementing S3 combined tiers on AWS

Hey all We are creating a secondary copy and writing to a combined tier library.  When we create this, do we need 1 bucket or 2?  I only created 1 bucket and specified the combined tiers.  Does an additional bucket get created - or a different folder within the bucket created and that gets changed to Glacier?We are planning on using S3-IA/Glacier for the 2nd copy.I guess I just want more specifics on what exactly happens in this process. ThanksMelissa

2
Melissa Adams
Commvault Certified Expert
2 years ago
A
Bit
AZOPSBit
asked in Storage and Deduplication
Change AWS Storage Tier on Existing Copies

Hey Community,2 QuestionsIs it possible to change the AWS storage tier from Glacier to Deep Archive on copies that already exist beside running an aux copy? We ran 7 months of aux copies to Glacier until we were told to send it to Deep Archive.. Now we have 500TB sitting in the Glacier class and of course, costing money. I’ve started the process of just aux coping them, but it is tedious to do one job ID at a time on the Cloud Storage Archive Recall workflow. Is there a way to add multiple job IDs to the workflow?Thanks in advanced~John

2
A
Bit
3 years ago
D
Byte
drPhilByte
asked in Storage and Deduplication
Force using all tape drives

Hi all,I would like to ask you about utilization of tape drives in the tape library. In our situation, however there are 4 tape drivers in the master pool, the Commvault is choosing only 2 of them. The rest of them is idle. Is there any way to force using the tape drive with the given storage policy? Can be helpful to associate the tape drive with only one media agent, that can only use that tape drive? Is the number of streams a variable in this case? Thanks for any suggestions!

2
D
Byte
3 years ago
K
Bit
Konstantin UBit
asked in Storage and Deduplication
Backup to cloud

Dear colleagues,We have been using CommVault Simpana for many years. And currently we are looking for a solution how we can backup our data to cloud with Simpana. I mean that target of backup will be AWS, Azure or any others cloud providers. I found in the documentation that backup to cloud is possible for CommServer DR, but what about production data?Note: We are looking options for BACKUP to CLOUD (where backup destination is CLOUD) but NOT backup of the CLOUD (where CLOUD is backup source)!I would appreciate any information on this topic.Thanks!

2
K
Bit
2 years ago
ApK
Byte
ApKByte
asked in Storage and Deduplication
Restore from offsite private cloud with no direct connection

Hi All. I have a question regarding restore of data which resides on a offsite private cloud where clients have no access. Setup is:On prem Client network with servers in backup.→ Firewall in between with port open for backup traffic.On prem Backup network with MediaAgents and storage.→ Firewall in between with port open for aux copy data.MediaAgents with offsite private cloud storage containing Aux copies of client data. Clients do not have access to the offsite MediaAgents/copy, so my question is, how do I make a restore of data from the offsite cloud, when the On prem clients and the offsite MediaAgents cannot talk to each other directly? Is it possible to route restore traffic via the on prem MediaAgents acting as a proxy some how? Would the network gateway via outgoing routes be the solution?  Any suggestion would be appreciated. Thanks for helping.-Anders

2
ApK
Byte
2 years ago
Henke
Byte
HenkeByte
asked in Storage and Deduplication
Cloud library tiering

If we enable tiering on a cloud library that lready exists with data in it, is it only new data (writes) that get’s tiered or is the whole path re-arranged?//Henke 

2
J
Vaulter
2 years ago
S
Commvault Certified Expert
SSchmidtCommvault Certified Expert
asked in Storage and Deduplication
DDB Sealing and new version

Hi All, we have an running DDB from 2018. We have Running 11.24.12 as Version on all Mas and Cs. After we sealed thed DDb have the new one the latest DDb version 6 automactially ? 

2
J
Vaulter
2 years ago
M
Byte
MansoorByte
posted in Storage and Deduplication
How to calculate sizing for Media agent deduplication partition

How to calculate sizing for Media agent deduplication partition

2
M
Byte
2 years ago
S
Bit
spartaBit
asked in Storage and Deduplication
Slow Tape to Disk

We were testing a small (200MB) backup and restore to tape and back to disk. Backup takes < 8 minutes however restore takes 3 hours. It appears that after making contact with the index server the restore is waiting almost three hours before mounting the first tape. Transfer from tape to disk actually take a few minutes. Any idea why it can take so long to mount the first tape?

2
Mike Struening
Vaulter
2 years ago
neuwiesener
Byte
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
J
Vaulter
2 years ago
D
Byte
drPhilByte
asked in Storage and Deduplication
Application Size vs Total Data to Process Discrepancy

Hi there! Could you please explain here why there is discrepancy between Application Size and Total Data to Process in the Job Controller view? My assumption is that there are some leftovers from previous backups, that need to be backed up/to be copied. Or is there any other reason?  

2
J
Vaulter
3 years ago
L
Byte
LaurentByte
asked in Storage and Deduplication
My daily incremental DDB Verification job uses more than the max streams / readers

Hi !I’ve noticed a strange behaviour of a daily DDB incremental verification job, normally set to 30 readers, but getting much higher than this since a few days.. See below How can this be possible ? I thought that the limit was.. a limit So, what has changed ? Well, not sure it is related, but since sept9, I upgraded from v11FR21HP20 to v11FR21HP53, and no other change.The Gridstor of 4 hosting this DDB also host another DDB, whose verification job runs without getting (or printing only) the maximum 30 readers limits. That’s a bit annoying because the first job goes pending for a while with : Error Code: [19:1105]Description: No Resources Available. Please check the Streams tab for details.  Of course no ressources are available, as it’s trying to allocated more than 30..  A few details about this job and blocks to process :   Should I log a case or, have you already been used to such ?

2
L
Byte
2 years ago
C
Byte
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,

2
C
Byte
2 years ago
L
LaurenceB
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

2
S
Vaulter
3 years ago
F
Bit
FlickerBit
asked in Storage and Deduplication
Anyone using SMB for mountpaths on Linux media agents?

Hello,  We have an environment that was originally set up with Windows media agents, but as it has grown we have added some Linux media agents as Data Movers.  CommVault will let me share the mountpaths with these Linux media agents but it will not let me run a “move mountpath” from a connected CIFS UNC path to a locally-mounted NFS volume on a Linux media agent, so it concerned me that it would let me share them with a Linux media agent if it was mounted as a local path.  That being said, I was wondering if anyone else is successfully accessing mountpaths over SMB/CIFs using Linux media agents?  (SMB path mounted to local directories on the Linux media agents and accessed/shared-to as local paths on the Linux servers, i.e. \\sancifsservername\mysharename via network path on Windows servers, and mounted to local directory as local device on Linux servers.)Thanks all!Pat

2
F
Bit
2 years ago
B
Bit
BackupOKBit
asked in Storage and Deduplication
I need to move backup from 1.5TB library to 700GB library along with old backup jobs, how to do it?

Hi, I need to move backup from 1.5TB library to 700GB library along with old backup jobs, how to do it?Thanks 

2
J
Vaulter
2 years ago
L
LaurenceB
asked in Storage and Deduplication
Commvault Backing up to Cloud - Reservation lookup

Hi Team,I am running a job to cloud and the job comes up with “Reservation lookup failure”andError Code: [62:1539]Description: [Cloud] There is a name lookup error.Source: NZVMCVSA01, Process: CVD Any thoughts on the origins of this error? It looks like something in the cloud is the issue. cheers4884  59a0  12/20 14:04:49 206728 Servant    [---- IMMEDIATE BACKUP REQUEST ----], taskid [5536] Clnt[NZVMCVSA01] AppType[Windows File System][33] BkpSet[defaultBackupSet] SubClnt[DDBBackup] BkpLevel[Full][1]4884  e0    12/20 14:04:50 206728 Scheduler  Phase [4-Scan] (0,0) started on [NZVMCVSA01] in [0] second(s) - ifind.exe -j 206728 -a 2:1136 -t 1 -d NZVMCVSA01*NZVMCVSA01*8400 -r 1639710108 -ab 0 -i 1 -cs AWSSYD-COMMCELL -s "DDBBackup"  -jt 206728:4:1:0:51234  -systemFiles  -mountPath  -seb  -lf 205120 -li 0 -ls 0  -attrEx 04884  2d18  12/20 14:04:52 206728 Servant    Reg [Control] received. Client [NZVMCVSA01] plattype = 4. Token [206728:4:1:0:51234]4884  38f8  12/20 14:04:54 206728 Schedule

2
Damian Andre
Vaulter
2 years ago
C
Byte
christopheByte
asked in Storage and Deduplication
new global deduplication database separation

Hi All,i have created some new GDSP and i notice that DDB are separate in 3 ID by type of backup (Files, Databases and VM)i have created this commserve (CS2) in FR20.11.22, (currently the commserve is in FR20.11.55).i have another commserve CS1 in the same version 11.20.55 but created in SP16. on this CS1 when i create a new GDSP there is only one ID for the DDB.Why i can’t create a DDB like in the CS2 ?How can i have the same type of DDB on all my Commserve ? Do they need to run a converison script ? or a patch ?Kind regards,Christophe

2
C
Byte
3 years ago

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