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Storage and Deduplication

Discuss any topic related to storage or deduplication best practices

  • 891 Topics
  • 4,082 Replies

891 Topics

K
Bit
Karl LangstonBit
asked in Storage and Deduplication

when going from windows disklib to S3 compatible cloudlib (Netapp) whats the best block sizes to use?

We have a client with DiskLib using 128kb block and CloudLib on S3 compatible Netapp storage using 512kb block size.  I know that the S3 compatible can be set lower unlike a true cloud bucket but what are the optimal settings in this case? I know from testing that Commvault have confirmed there is up to a 30 times performance gain having same block sizes for AUX copy vs reinflation going from one size to another but what would be the best case if this were to be rebuilt, 128/256/512 both sides? TIA Karl

1
W
Vaulter
2 years ago
T
Byte
tigger2Byte
asked in Storage and Deduplication

Are there any special considerations for building a "writing tape only" media agent

We have an old physical media agent doing Aux Copies AND writing tapes every month.  When tape jobs start for this media agent, the throughput of the aux copies suffers greatly as the CPU goes to 100% and stays there until tapes finish (might be 10+ days). We wanted to see if we could easily offload the “tape writing” jobs as we have a newer (but not very powerful) physical system we could repurpose.  This would entail installing a new physical media agent in the rack, adding SCSI HBA’s to it and connecting them to the tape drives.  Are there any “gotchas” when setting up a new media agent for tape jobs (either special physical hardware considerations, or software/config gotchas, or guides I should be looking at)?  I haven’t set a media agent up (especially doing tapes) and this is a that was maintained by a person who is no longer working with us. Also: We’re using LTO7 M8 tapes with LTO8 drives.

2
T
Byte
2 years ago
M
Byte
MountainGoatByte
asked in Storage and Deduplication

MA Decommission hosting GDSP - Is there a way to migrate but keep the Storage Policies in tact?

Hi Commvault People, I have a tidying up exercise to do, which will ultimately involve this:- 1 - Decommission two MA’s currently working as partitioned dedupe  (lets call, them MA3 and MA4)2 - Migrate workloads to remaining MA’s, also with their own partitioned GDSP configs.     Lets call them MA1 and MA2.3 - Noting that Storage Policies on MA1\MA2 versus MA3\MA4 have very different retention. I know that generally speaking, you can easily reassociate to another SP and away you go, but that’s only useful if you have matching retention.The issue I have is that my MA3 and MA4 Storage Policies (whose ma’s I want to retire) are set to Infinite retention.  The Storage Policies on the remaining ma’s (MA1\MA2 are not). So If I want to migrate the workloads away from MA3 and MA4, is it possible to somehow keep the Storage Policies in tact that were previously associated with MA3 and MA4. I would prefer to keep them in tact to avoid yet more legacy and historical SP’s clogging up the environme

6
V
Vaulter
2 years ago
M
M.S.KIM
asked in Storage and Deduplication

Error Code: [62:1174] Description: Failed to mount media with barcode

HiThe current tape type is V7M8.I also changed the type to V7, V7M8, and V8.But I keep getting the following error message:Please review if there is a solution.Kind Regards Error Code: [62:1174] Description: Failed to mount media with barcode [AUS000L8], side [A_2087], into drive [HPE Ultrium 8-SCSI_2], in library [HP MSL G3 Series 70] on MediaAgent [KRDJMASP01]. SCSI Operation: Move Media From Slot To Drive. Reason: The device reported an illegal request error during the execution of the command. Advice: If this error is persistent, check if there are any visible hardware errors reported by the device or Operating System logs. Please contact your hardware vendor. Source: glbcomcel, Process: MediaManager      

2
Mike Struening
Vaulter
2 years ago
H
Vaulter
Hongmo KimVaulter
asked in Storage and Deduplication

LTO7 M8 tape media instead of LTO8 cartridge

Hi everyone. Customer runs several tape libraries in their commcell domain.One of them is configured with LTO8 tape drive and LTO7 M8 tape media which is known for 9TB tape.Tape drives are well configured just by performing detection and it showed tapes in library with “OOOOOOL8”. (but it’s a M8 media, 9TB capacity)I tried some configuration for tape media - LTO7, LTO8, LTO7M8 … but the same result.It failed to mount the tape on a drive and it showed same error msg … (illegal request ...) Anyone who experienced this?

6
Jos Meijer
Commvault Certified Expert
2 years ago
B
Byte
benjaminasByte
asked in Storage and Deduplication

Shared disk library - restore

Hi, I have a question regarding magnetic disk library setup and how will it affect restores. So what is being in the thoughts:Library has for example 4 media agents assigned to it; Each media agent would have own mount path provided from SAN; We would then share mount paths between media agents (exportfs (NFS..)) Local to media agent mount path would have Read/Write access and other media agents who have that mount path as a shared one would have Read access Transport Type would be Regular Mount paths would have spill and fill for load balancing With this setup a question came: what will happen if backup_1 was backed up into media_agent_1 out of 4 media agents used in that library, and this media agent is offline - can we still restore data from backup_1 with other 3 remaining media agents? At this point looks like a no - because mount paths to which backup_1 has been done is offline, so how can other media agents in the library be used for a restore? Can this work? If not - can you su

5
J
Vaulter
2 years ago
Marwa
Bit
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 ?

3
Sean Crifasi
Vaulter
2 years ago
N
Bit
NillesBit
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
M
Byte
ManikandnByte
asked in Storage and Deduplication

Cloud Storage prediction

Hi All, Currently we are maintaing the below retention policy for all data type. The Primary copy stored in the On-Prem and Aux copy moving to Tape.Daily Backup - 35 days (On-Prem and Cloud)Weekly Full - 6 Weeks (On-Prem and Cloud)Montlhly Full - 1 Year (Cloud)Annual Full - 5 Years (Cloud) Now, there is a proposal to change the Retention for Daily and weekly to 90 days and 12 weeks respewctivily in the cloud alone. I want to predict the following factors.What is my daily data change rate What is the expected immediate storage growth due to propossed retention  How much I need to pay additionally according new policy. Hope most of you came across the situtaion and looking some inptu to calculate the values.

3
J
Vaulter
2 years ago
A
Byte
AlexzyByte
asked in Storage and Deduplication

Error Code: [62:1419] Description: The required media is currently in a different library. Source: hq-vm-commserv, Process: MediaManager

Error Code: [62:1419]Description: The required media is currently in a different library.Source: hq-vm-commserv, Process: MediaManagerpls urgent the tape is in same libray that copy it  why is it saying is in DR

3
A
Byte
2 years ago
T
Byte
tclawreByte
asked in Storage and Deduplication

I put year old tapes into my library and it says they are empty

I need to restore from tapes I backed up to about a year ago. When I put the year old tapes into my library it says they are empty/spare media. I run a full scan and it completes instantly and nothing is updated. Is there a way to inventory the tapes like in backup exec? I am new to using commvault.

5
K
Bit
2 years ago
A
Bit
AbrahamBit
asked in Storage and Deduplication

Help Needed on Error Code: 62:342

Dear All,Please I need help in resolving an issue with my commvault server. This is the error am getting;Error Code: [62:342] Description: Failed to mount media with barcode [A99801], side [A_780], into drive [IBM ULTRIUM-TD5_20], in library [STK L180 1] on MediaAgent [TMwas02]. SCSI Operation: Open Drive Device. Reason: Encountered an I/O error while performing the operation. Advice: Please use the following troubleshooting utilities 1.TapeTool for Tape device-related problems. 2.LibraryTool for Library-related problems provided in the MediaAgent's installation folder to perform diagnostics on this device. Source: backup, Process: MediaManagerPrior to this issue, the backup schedules run smoothly. I have noticed this error only comes up when I run back jobs on media agents ( I have eleven) in the commcell with exception of the commserv’s media agent.The status of the media library attached to these media agents shows “ready”Any help will be greatly appreciated.Thank you.

11
Mike Struening
Vaulter
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
A
Byte
ADN GMBHByte
asked in Storage and Deduplication

MS Office365 and new Exchange Agent, Status of Tape Support

Hi Commvault Community, i would like to see, if anyone else is facing the same Issue. We have a few customer that are still using Tapes to move weekly/monthy Backups to a save location.With the change to “forever incremental” they are now facing a big issue to collect all the backups of the agent on to the exported tape. There is no process to generate a Synth. Full or everything likewise.One customer is still holding on to the “old” exchange one-pass classic agent, so he don’t lose the Synth Full Options.Another customer is manually creating a new Storage Policy Copy every month to get all the Backups on the same tape.We have shared this problem a few months ago, we even had a talk at the GO 2019 with dev. Back then we there told there will be a solution on its way, we could expect it for SP20. Now we are at SP26 and there is still no option for these customer.

8
K
Vaulter
2 years ago
A
Bit
AsyrafBit
asked in Storage and Deduplication

Failed to mount media error

We are working on Commvault with Falconstor VTL POC. Our Commserve running on SP20.17. At first we have been provided with emulated HP tape library with LTO4 drives. When we initiate the backup, it failed with below error Then, we also try with emulated HP tape library with LTO7 drives. Then we received almost the same previous error.  We also already update Tape Drive driver on Windows, but still the same. FYI, we are using Windows 2016 with Commvault SP20.17 on the Commserve server which running on VM. Need someone opinion. Please help. Thanks.

4
Onno van den Berg
Commvault Certified Expert
2 years ago
Ken_H
Byte
Ken_HByte
asked in Storage and Deduplication

How to manually run missing aux copies

Because of a bug, my cloud storage hit 100% full and not all year-end backups were replicated to the cloud.  I’ve worked with CommVault support and now have 50% free space.  Even though the Aux Copy job has run several times, there are still year-end backups that haven’t replicated to cloud storage.  How do I get CommVault to copy the missing backups?Ken

12
L
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
YYZ
Byte
YYZByte
asked in Storage and Deduplication

Combined Tiers - Azure

Does the use of combined Tiers in Azure ‘imply / force’ the use of a Media Agent running in Azure(Assume the Data in Azure would be 300TB)

3
Mike Struening
Vaulter
2 years ago
D
Byte
DanCByte
asked in Storage and Deduplication

Health report | exclude sealed DDBs from the DDB Disk Space utilization /strike count

Hello team, I noticed two sealed DDBs have a space warning under DDB disk space Utilization section in webconsole health report.We have a long term retention for mailbox backup that prevent DDB store from reclaim   I’m looking to see if there is a way to exclude sealed DDB from the DDB disk space utilization /strike count (I have search CV bol but it doesn’t bring any search result)Or i’ll need to contact support to manually free up sealed ddb space. Do need upload CS DB for CV staging ? thank you

7
D
Byte
2 years ago
S
Byte
shailu89Byte
asked in Storage and Deduplication

Exchange mailbox restore from copy precedence

Hello,I am on commvault v11 SP20 trying to restore exchange mailbox items by changing copy precedence or using a disk library from aux copy (not primary) Restore runs fine but always picks up media agent associated with primary copy.Tried from commcell console and command center (no option to change copy precedence in command center for exchange mailbox) Is it expected behavior or I am doing something wrong here?

3
Mike Struening
Vaulter
2 years ago
M
Bit
MiKL_CvltBit
asked in Storage and Deduplication

LTO - Inventory to new Commserve

Hello Community,I have many LTO that contain backups from another commcell (Commcell A). I want to add the jobs of these LTOs in the commserve database (Commcell B).So Commserve know the jobs and can restore in the Commcell B. Next, software encryption is enable on LTO Copy in Commcell A.Is it possible and how ? Thanks :)

1
Edd Rimmer
Vaulter
2 years ago
V
Byte
virgilByte
asked in Storage and Deduplication

Media Group

Hi teamsIn the Media Library page under the Media group column, categories are displayed in “monthly” (MENSUELLE in french) section while tapes are annual.I check scratch pool and storage policies, all is correct.Any Ideas ?Regards.

3
Mike Struening
Vaulter
2 years ago
Kamil W
Commvault Certified Expert
Kamil WCommvault Certified Expert
asked in Storage and Deduplication

Some question about Cloudian S3

Hi Guys,I have some questions about Cloudian S3 storage.Does Commvault fully support Cloudian S3 storage? If so, is ‘object lock’ functionality also supported?I cannot find any information about it in the BOL.Rgds,Kamil 

6
Kamil W
Commvault Certified Expert
2 years ago
neuwiesener
Byte
neuwiesenerByte
asked in Storage and Deduplication

Disk Library IOPS requirement

Hi AllDo the below IOPS numbers in the second table below correspond to the test condition specified here :Excerpt from: https://documentation.commvault.com/11.24/expert/8852_testing_iops_for_disk_library_mount_path_with_iometer.html Access Specification Settings Percent Read 50 Percent Write 50 Percent Random Distribution 50 Percent Sequential Distribution 50 Transfer Request Size 64K The minimum IOPS required for each mount path of the disk library of extra large, large and medium MediaAgents is: Components Extra Large Large Medium Disk Library 1000 IOPS 1000 IOPS 800 IOPS

3
neuwiesener
Byte
2 years ago
J
Bit
jdpetersenBit
asked in Storage and Deduplication

Tape server halted with error NDMP_MOVER_HALT_MEDIA_ERROR

Backup successful.  Restore produced Tape server halted with error NDMP_MOVER_HALT_MEDIA_ERROR

1
dude
Byte
2 years ago

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