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DR Series Software 4.0.3 - Command Line Reference Guide

Introduction to the DR Series System Command Line Reference Guide Introducing the DR Series system Managing the DR Series system
Alerts Commands Authenticate Commands Network
Network Command Usage network --show network --delete network --restart network --setdhcp network --setstatic_ip [--bondif <bondN>] [--nwif <ethN>] --ip <IPv4/IPv6 address not already in use> --netmask <netmask> [--gateway <IPv4/IPv6 address>] network --create_bond network --create_eth network --add_member network --setdns [--suffix <dns suffix>] [--primary <IPv4/IPv6 address>] [--secondary <IPv4/IPv6 address>] network --setbonding --bondif <bondN> [--mode <ALB | 802.3ad>] [--mtu <supported MTU range 512 - 9000>] network --update network --factory_reset network --host network --route network --nslookup --destination <ip address | hostname> network --traceroute --destination <ip address | hostname> network --ping --destination <ip address | hostname> [--tries <number>] [--size <number>] [--interface <bondN | ethN>] network --blink network --enable network --troubleshoot [--links] [--gateway] [--ntp] [--dns] [--active_domain] [--nis] [--clients] [--port_mapper] [--network_config] [--show_active <NFS|CIFS|OST|RDS|NDMP|ISCSI|FC>] [--interface <bondN | ethN>] network --troubleshoot --gateway --interface <bondN | ethN> network --troubleshoot [--show_active <NFS| CIFS|OST|NDMP|ISCSI|RDS>] network --tcpdump [--port <nfs | windows | replication | ost | rds>] [--pkt_size <128 - 32768>] [--file_size <0 - 100>] [--stop] [--host <ip address list>] [--interface <bondN | ethN>] network --tcpdump [--pkt_size <128 - 32768>] network --tcpdump [--file_size <0 - 100>] network --tcpdump [--host <ip address list>] network --tcpdump [--port <nfs | windows | replication | ost | rds>] network --iperf_client --server <ip address | hostname> [--port <number>] [--window_size <num bytes [KB/MB]>] [--interval <num seconds>] [--time <num seconds>] network --iperf_server [--port <number>] [--window_size <num bytes [KB/MB>] network --help
OST RDA Stats Storage Group commands System
System Command Usage system --show [--config] system --show [--hardware] system --show [--storage] [--type <boot | internal | external>] [--service_tag <service tag>] system --show [--storage] system --show [--license] [--verbose] system --show [--ntp] system --show [--version] system --show [--timezones [Region]] system --show [--upgradefile] system --show [--upgradehistory] system --show [--marker] system --show [--replication_traffic] system --show [--opdup_traffic] system --show [--backup_traffic] system --show [--mgmt_traffic] system --init system --init --secure_erase <1–pass/3-passes/7-passes> system --reboot system --shutdown system --upgrade system --license [--validate] [--add] system --setname --name <node_name> system --setdate [--date <date>] [--timezone <Region/Zone>] system --setntp [--add <server name>] system --setntp [--delete <server name>] system --setntp [--enable] system --setntp [--disable] system --setntp [--adjust_time] system --hybrid_replication [--enable][--disable][--status] system --rdairgap [--enable][--disable][--set_retention_period <0 days to 365 days>][--get_retention_period][--open][--close][--status] system --rdairgap_schedule [--start_time <HH:MM>][--end_time <HH:MM>][--remove] system --setlogin system --telnet [--enable | --disable] system --datacheck --enable system --datacheck --disable system --datacheck --throttle system --marker [--enable] [--disable] system --verify_on_read [--enable] [--disable] system --add_storage --enclosure <service tag> system --storage [--set_usage_alert <70% - 90%>] system --storage [--blink] [--type <internal | external>] [--service_tag <service tag>] [--disk <slot num>] system --storage [--unblink] [--type <internal | external>] [--service_tag <service tag>] [--disk <slot num> system --mgmt_traffic system --backup_traffic system --replication_traffic system --opdup_traffic system --help
User Virtual Machine
Maintaining the DR Series System
Diagnostics Maintenance
Maintenance Command Usage maintenance --filesystem [--start_scan [verify_data | verify_rda_metadata | verify_metadata] [--storage_group <name>] maintenance --filesystem [--stop_scan] maintenance --filesystem [--scan_status] maintenance --filesystem [--scan_report [verbose]] maintenance --filesystem [--repair_status [verbose]] maintenance --filesystem [--repair_history [verbose]] maintenance --filesystem [--scan_restart [verify_data | verify_rda_metadata | verify_metadata]] maintenance --filesystem [--repair_now] maintenance --filesystem [--reclaim_space] maintenance --filesystem [--clear_quarantine] maintenance --filesystem [--clear_quarantine] maintenance --filesystem --show_throughput maintenance --configuration [--backup] maintenance --configuration [--restore] maintenance --configuration [--reinit_dictionary] maintenance --configuration [--reset_web_certificate] maintenance --configuration --enable_sha256_web_certificate maintenance --hardware [--reinit_nvram] maintenance --hardware [--restore_hw_db] maintenance --hardware [--motherboard_replaced] maintenance --disk [--make_standby [slot num]] [--type <internal | external-<num> | service tag>] --clear_foreign] maintenance --remote_access [--show] maintenance --remote_access [--enable] maintenance --remote_access [--racreset] maintenance --remote_access [--static_ip] [--ip <IPv4/IPv6 address>] [--netmask <netmask>] [--gateway <IPv4/IPv6 address>] [--device <lom1|lom2|lom3|lom4>] maintenance --remote access [--disable] maintenance --vdisk --check_consistency --type <boot|internal|external> [--service_tag <service tag>] maintenance --help
Managing DR Series System Storage Operations
System Storage Operation Commands Connection Container VTL NDMP iSCSI FC Replication Seed Schedule
Data Integrity Checking Additional Linux Commands About us

About Data Check

The purpose of the Data Check feature is to perform data integrity checks to detect potential silent data inconsistencies that can affect the DR Series system disks or disk subsystems, and protect user data before there is any potential data loss.

Silent data inconsistencies can be any of the following types of disk-based data storage issues: hardware imperfections, bit rot, current spikes, disk firmware problems, and ghost writes. Data Check performs its own integral data integrity checks that detect and identify potential issues after performing the following scans:

For more information, see Continuous Data Verification Scans and Priority Write Verify Scans.

Priority Write Verify Scans

Data Check performs an early write verify scan, also known as a namespace scan, when files are first created or when they are modified by users. All of the modified files are flagged for priority scanning and this process is based on its timestamp—with a higher priority given to the most recently modified files. Early write verify scans are performed every five minutes when the other DR Series system operations are idle. For more information, see About Data Check and Continuous Data Verification Scans.

Continuous Data Verification Scans

Data Check performs a data verification scan, also known as a blockmap scan, which cycles every two hours through all of the objects in the data store. Data integrity verification is done by recalculating the hash values for the underlying data, and comparing these to the stored hash values using an additional checksum process. Any unexpected data inconsistencies are reported using the DR Series system alerts process.

For more information, see About Data Check and Priority Write Verify Scans.

Data Check CLI Commands

These DR Series system CLI commands allow you to perform the following Data Check-related scans and display current Data Check status. There are two sets of Data Check related DR Series system CLI commands: system --datacheck and stats --datacheck.

system --datacheck Commands

Display the current Data Check state (enabled/disabled status for namespace, blockmap, or all). For more information, see system --datacheck.
Enable Data Check scans (namespace, blockmap, or all). For more information, see system --datacheck [--enable <all | namespace | blockmap>].

stats --datacheck Commands

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