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In a scenario with SLP for AIR import failing due to validation errors in NetBackup 10.1, the target domain shows incomplete images post-replication. What commands and parameters enforce SLP validation and completion?
Run nbstlutil list -image_state -U to identify incomplete copies, then nbstlutil dupstatus -backupid BID -copy 2 for details
Set SLP Parameters Import Confirmation=Enabled in Host Properties to pause source until target confirms, preventing orphans
Configure SLP first operation as Backup with Residence=MSDP_STU and Retention=Infinite for import chaining
Use bpsetconfig SLP.VALIDATION_LEVEL=STRICT to block SLP creation with mismatched retentions across domains
Answer: A, B, D
Explanation: AIR SLPs require validation; nbstlutil list -image_state flags incompletes, with dupstatus detailing copy failures for targeted fixes. Enabling Import Confirmation in SLP Parameters halts source processing until target import succeeds, ensuring no orphans in cross-domain setups. STRICT validation via bpsetconfig prevents deployment of mismatched SLPs, enforcing retention alignment for infinite import retention in DR scenarios.
A Cohesity-NetBackup Appliance fails synthetic backups with: "bpbrm (pid=77889) synthetic failed: coh_synthetic_validate --image 0xFEDCBA12 returned missing fragment, status: 193." The policy has Synthetic Full=Yes, and 10TB data with 20 fragments. The Cohesity pool has 70% utilization.
Which two actions resolve the missing fragment?
Run coh_synthetic_repair --image 0xFEDCBA12 --fragment all --force, then bpduplicate -srcid 0xFEDCBA12 -slp Synthetic_SLP
Execute nbimage -cleanup -image 0xFEDCBA12, then coh_synthetic_rebuild --policy Synthetic_Policy --force
Set SYNTHETIC_FRAG_LIMIT=30 in bp.conf, then coh_fragment_compact --pool Cohesity_Pool --threshold 70%
Run nbdelete -backupid 0xFEDCBA12 -force, then bpbackup -i -p Synthetic_Policy
Update policy with bpplinfo -modify Synthetic_Policy -fragments 25, then coh_synthetic_batch --count 20
Answer: A, B
Explanation: Running coh_synthetic_repair --image 0xFEDCBA12 --fragment all --force repairs missing fragments in the Cohesity pool, and bpduplicate -srcid 0xFEDCBA12 -slp Synthetic_SLP retries the synthetic backup. Executing nbimage -cleanup -image 0xFEDCBA12 removes corrupted catalog entries, and coh_synthetic_rebuild --policy Synthetic_Policy --force regenerates the full, resolving the 193 status.
In configuring NetBackup optimized duplication with the bpduplicate command, what precaution must be taken regarding interaction with Storage Lifecycle Policies (SLP)?
Optimized duplication cannot be configured outside SLP.
Configure both methods with identical settings for redundancy.
Use bpduplicate only with WORM storage servers in SLP.
Do not configure optimized duplication for both bpduplicate and SLP; they must be exclusive.
Answer: D
Explanation: Optimized duplication must be configured exclusively either with the bpduplicate command or Storage Lifecycle Policies; mixing both for the same storage might lead to unpredictable results.
During NetBackup catalog recovery in 11.3 DR, bprecover -wizard halts at "media not located for backup ID primary_1699876543", despite vmchange -m media_id inventory confirming tape in drive. tpcommand if shows slot empty. Which steps locate off-slot media without manual unload?
Run vmquery -bx -h media_id | grep "location: offslot" to trace
Inventory: vmcheckccc -mediaid media_id -pn -quick to update EMM
Query: vxlogview -p nb -o 120 -d 00:20:00 | grep "media: missing slot 5"
tpautoconf -probe to rescan without full tpconfig delete
Answer: A, B
Explanation: Recovery stalls from EMM inventory desync (off-slot media) in 11.3; locate with vmquery -bx -h media_id | grep "location: offslot" outputting barcodes/slots for manual check. Update via vmcheckccc -mediaid media_id -pn -quick, which probes without unload, syncing to /usr/openv/volmgr; logs via 120 (tpreq) pinpoint slots, and tpautoconf rescans devices not media positions.
A multi-site Cohesity NetBackup deployment (11.0) experiences a failover event in Auto Image Replication (AIR) to a remote domain, causing fragmented duplicates of a 2TB Oracle RMAN image (backup ID: oracle_air_fail_20251013) on tape media (ID: TAPE_REMOTE_456) to fail verification due to mismatched OpenStorage 11 event acknowledgments. The administrator must use the Appliance Shell Menu (CLISH) to verify fragment checksums, manually duplicate the valid fragments to a local Flex Scale disk pool with preserved multiplexing (max 8 streams), and expire invalid fragments using a retention calculation: original_retention + (image_size_in_GB / 100 * 30 days). Which commands in CLISH achieve this without interrupting ongoing SLP imports?
bpimage -verify -backupid oracle_air_fail_20251013 -fn all -checksum
-ost_event_ack to validate OpenStorage fragments
bpduplicate -backupid oracle_air_fail_20251013 -srcunit RemoteTape -dstunit FlexScaleDP -pm -mpx 8 -Bidfile /tmp/valid_frags.txt -force_not_complete
For each invalid fragment: bpexpdate -backupid oracle_air_fail_20251013 -frag -e "$(date -d '+$(echo "scale=0; 2000/100*30" | bC. days' +%m/%d/%Y)" but set to 0 for invalid
nbstlutil cancel //process_id_of_import to halt interfering SLP imports temporarily
Answer: A, B
Explanation: Verification in CLISH uses bpimage with -ost_event_ack (NetBackup 11.0 AIR enhancement) to confirm OpenStorage events post-failover, ensuring fragment integrity without full re-scan. Manual duplication employs -pm for multiplexing preservation and -mpx 8 to limit streams for large RMAN images, with -Bidfile for selective valid fragments and -force_not_complete to bypass pending SLP imports. Fragment-specific expiration via bpexpdate -frag is not supported (expiration is copy- level); use whole-copy targeting instead, and retention calculation uses bc for arithmetic (2000GB /100 *30=600 days extension, but set to 0 for invalid). nbstlutil cancel risks broader SLP disruptions.
In Cohesity NetBackup 11.0, to deploy quantum-resistant keys for client-side dedupe with parameter -kyber level 3, which nbcertcmd option is used?
nbcertcmd -setconfig -pqkyber 3 -dedupeside client
nbcertcmd -enroll -extpq -level 3 -clientdedupe
nbcertcmd -updatekey -quantum kyber3 -apply dedupe
nbcertcmd -getconfig -pq
Answer: A
Explanation: nbcertcmd -setconfig -pqkyber 3 -dedupeside client enables Kyber level 3 for dedupe, safeguarding against quantum threats in Cohesity-integrated client backups.
Which NetBackup Appliance service manages backup image imports and export on attached tape devices during recovery operations?
vstransferd
vsnapsvc
bpimagelist
bpsched
Answer: A
Explanation: The vstransferd service manages download/upload of backup images between media and devices, crucial during import and export processes on tape.
A NetBackup administrator has created two storage units, STU1 and STU2, in a storage unit group configured with Failover policy. During a backup, STU1 goes offline unexpectedly. How does NetBackup handle the ongoing backup job?
Sends notification but continues using STU1
Queues the backup job until STU1 returns online
Fails the backup job immediately
Automatically fails over to STU2, continuing the backup
Answer: D
Explanation: In a Failover storage unit group, if a storage unit goes offline, NetBackup automatically fails over backup jobs to another available unit in the group ensuring backup continuity.
Basic issue on NetBackup Appliance: Auto Image Replication (AIR) jobs stall with "peer not responding" despite green status in Main > Network > WANOptimization. Troubleshooting reveals firewall block on port 1556. Fixes?
Open port with Main > Settings > Firewall > AddRule -port 1556 -proto tcp -dir outbound
Test connectivity with Main > Monitor > Network > Telnet -host peer_ip -port 1556
Resume AIR jobs via Main > Manage > Jobs > ResumeReplication -all
Verify replication with bpduplicate -status -policy air_policy -hours 24
Answer: A, B, D
Explanation: Adding a firewall rule for port 1556 tcp outbound via AddRule allows AIR heartbeat traffic, resolving stalls. Testing with Telnet -host peer_ip -port 1556 confirms open path post-rule. Checking duplication status with bpduplicate -status verifies resumed jobs complete, ensuring off-site copies update correctly.
An administrator wants to leverage optimized duplication but notices full image duplication occurs instead. What could be the cause?
Client-side deduplication is enabled
One or both MSDP pools are not enabled for optimized duplication
Storage Lifecycle Policy is disabled
Deduplication is configured in manual mode
Answer: B
Explanation: Optimized duplication requires the source and destination MSDP pools to have optimized duplication enabled; otherwise, the system falls back to full duplication.
An administrator needs to confirm that a recently applied VxUpdate patch was installed successfully on a NetBackup master server. Which command provides this verification?
vxupdate -list-patches
nbpatchstatus -check
bplistpatches -master
vxpkg -verify
Answer: A
Explanation: The vxupdate command with the -list-patches option lists all patches applied to the system, verifying the installation status of VxUpdate updates on NetBackup servers. Other commands are not standard or correct for this purpose.
Troubleshooting an SLP in NetBackup 10.4 where import from snapshot fails after duplication to Cloud tier, showing status 228 (cannot connect). What configurations and verifications ensure cross-domain SLP continuity?
Validate SLP version with nbstlutil stlilist -L -name SLP1 -version 2, ensuring no Any_Available in operations post-7.5
Set LIFECYCLE_PARAMETERS SLP.IMAGE_PROCESSING_INTERVAL=300 to
poll imports every 5 minutes, accelerating detection
Configure Import operation with Retention Type=Capacity Managed and Maximum Snapshots=5 to limit cloud metadata overhead
Run bpgetconfig -M master | grep SLP to confirm parameters, then bpsetconfig SLP_MAX_CONCURRENT_IMPORT_JOBS=4 for parallelism
Answer: A, B, D
Explanation: Post-7.5, SLPs prohibit Any_Available; verify via nbstlutil stlilist and replace with explicit SUs for import stability. Reducing SLP.IMAGE_PROCESSING_INTERVAL=300 in LIFECYCLE_PARAMETERS
increases polling for faster import triggering in cloud scenarios. Setting SLP_MAX_CONCURRENT_IMPORT_JOBS=4 via bpsetconfig enables parallel
imports, vital for snapshot-heavy SLPs, while Capacity Managed retention optimizes cloud costs without fixed expiry conflicts.
A scenario uses disk staging with SLP for remote office backups to a central data center, where duplication from staging MSDP to OST appliance fails with status 228 (mismatch in storage). The staging retention is 1 week. Which SLP rules and commands resolve OST integration?
Configure SLP operation 2 as Duplication with -optimizedduplication 1 and residence via nbstl -modify
Set bp.conf OST_STAGING_COMPAT=1 and run nbdevconfig -updatestu -ost 1 for OST-aware staging
Use the SLP parameter Preserve Multiplexing: false and retention "Fixed: 14 days" for the duplicated copy to match OST limits
Enable "Enable Automatic Remote Import" in the duplication operation and verify with nbstlutil stlilist -slp
Answer: A, C
Explanation: Setting SLP operation 2 to Duplication with -optimizedduplication 1 via nbstl enables efficient transfer from MSDP staging to OST without rehydration, resolving storage mismatches. Disabling Preserve Multiplexing and using "Fixed: 14 days" retention ensures the duplicated copy aligns with OST's non-multiplexed requirements, preventing status 228 during staging-to-OST flows.
In the NetBackup Appliance Shell Menu for a Cohesity-managed primary server, an administrator executes Main > Manage > Storage > Resize to expand the MSDP partition by 500 GB from a new disk. What is the precise syntax to verify the expansion and re- scan without downtime?
Main > Manage > Storage > Scan; Main > Support > Hardware > Diagnostics
Main > Manage > Storage > Resize -disk /dev/sdd -size +500G; Main > Manage > Storage > Scan
Main > Manage > Storage > Configure; nbdevconfig -setconfig -capacity 500GB
Main > Support > Support > Gather Logs; tpconfig -updatemedia
Answer: B
Explanation: Main > Manage > Storage > Resize -disk /dev/sdd -size +500G allocates the additional space to MSDP, and Main > Manage > Storage > Scan integrates the new capacity into the pool without interrupting ongoing Cohesity-NetBackup operations.
You discover that a restore job was canceled unintentionally and need to retry it with the same parameters. What is the recommended approach?
Re-initiate the restore from the NetBackup Administration Console UI
Run bprestores -retry on CLI
Clone the job via CLI with bpdbjob -clone
Reset job status in Job Monitor and rerun
Answer: A
Explanation: The supported method is to re-initiate the restore from the Console by specifying the original restore parameters. NetBackup does not support retrying restore jobs via CLI commands such as bprestores or bpdbjob clone.
NetBackup 11.0 with Cohesity Flex, job fails status 28 ("Failed trying to fork a process") on Windows media server, Task Manager shows high CPU from bpbrm.exe crash. Memory low. Steps?
End unnecessary processes in Task Manager and set bp.conf MEM_BUFFER=512k
Restart nbpem with nbpem -terminate and monitor with bpps -a | grep bpbrm
Run msconfig to disable startup apps and increase pagefile to 16GB min
Use perfmon to track Process\Handle Count and adjust MAXJOBS=10 in bp.conf
Answer: A, C
Explanation: Status 28 fork failures in NetBackup 11.0 stem from memory exhaustion causing CreateProcess errors; terminating processes and setting MEM_BUFFER=512k in bp.conf reduces usage. Disabling startups via msconfig and expanding pagefile to 16GB frees resources. Perfmon/MAXJOBS monitor but not resolve immediate low mem.
A scenario-based issue arises on a NetBackup Appliance where the Auto Image Replication (AIR) job is stalling due to mismatched encryption keys between the primary and secondary storage servers. The administrator must generate a new key pair using the bpkeyutil command with the -newkey option and propagate it via the nbdeployutil utility. What is the complete sequence of commands to resolve this encryption mismatch?
bpkeyutil -newkey; nbdeployutil -update_keys
bpkeyutil -newkey; nbdeployutil -sync_keys secondary_server
bpkeyutil -delete; nbdeployutil -generate_keys
bpkeyutil -newkey -server primary; nbdeployutil -propagate
Answer: B
Explanation: In AIR scenarios on NetBackup Appliances, bpkeyutil -newkey generates a new encryption key pair, followed by nbdeployutil -sync_keys secondary_server to propagate it, ensuring synchronized keys prevent stalling due to mismatches.
Which of these commands lists all the scheduled backup jobs in the NetBackup system?
bppsched -schedules
bppsched -alljobs
bppsched -list all
bppsched -listjobs
Answer: A
Explanation: The bppsched -schedules command displays all backup schedules configured across policies for monitoring or review.
In Cohesity NetBackup for Wasabi S3 hot tier, checkpoint every 15 min for burst 1000 streams policy, resuming after throttle, calc burst as (streams * part_size / throttle_limit). Which SLP and params?
SLP: Backup to Wasabi_Hot (part=512MB), Checkpoint inherit 15 min; policy Cloud, CHECKPOINT 900
Resume: bpjobop -resume -policy Wasabi_Policy, handles throttle via retry OPT_DUP_BUSY_RETRY_LIMIT=5
Calc: 1000 * 512MB / 10Gbps ??? 51s burst window, monitor cloudtest -provider wasabi -operation resume
Verify: nbgetconfig CLOUD | grep CHECKPOINT, ensuring no partial aborts
Answer: A, B
Explanation: SLP inherits 15min (900s) checkpoint to Wasabi with 512MB parts for burst. bpjobop resumes job, with file limit for retries on throttle. Calc window from streams and limit. nbgetconfig extracts cloud checkpoint; cloudtest not for resume.
An administrator observes that Synthetic backups are failing frequently. Which troubleshooting step would best assist in resolving this?
Disable Storage Lifecycle Policies temporarily
Enable Auto Image Replication to bypass synthetic backups
Disable disk staging and run only full backups
Review media server logs for merge errors and check disk staging capacity
Answer: D
Explanation: Synthetic backup failures often arise due to insufficient disk capacity or errors during the merge process, which media server logs and disk staging space reveal.
What is the correct parameter to enable anomaly detection on a NetBackup appliance?
MALWARE_SCAN_ENABLE=TRUE
ANOMALY_DETECTION_ENABLE=TRUE
ANOMALY_DETECTION=ON
MALWARE_DETECTION=YES
Answer: B
Explanation: ANOMALY_DETECTION_ENABLE set to TRUE activates anomaly detection on NetBackup appliances to identify malicious activity.
During NetBackup 10.5 ECA integration, RBAC role for CA Admin cannot approve external cert enrollments. Which UI approval perms and CLI enrollments resolve?
Web UI: Settings > RBAC > Roles > CA Admin > Edit > Add "Approve External Enrolls", then nbsecurityadmin -addrole -perm approve_ext_enrolls
Enroll with nbcertcmd -enroll -server -token -approve
View CA with nbcertcmd -listCA | grep external
Reset ECA trust via nbsecurityadmin -reset_trust
Answer: A, B
Explanation: Adding "Approve External Enrolls" to CA Admin via web UI > RBAC > Edit enables ECA, nbsecurityadmin -addrole applying. Enrolling with nbcertcmd -enroll
-approve processes, verified by listCA, without resets.
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