Denne artikel omhandler funktioner i Avamar Engineering-scriptet "dump_root_hashes.rb
" og giver læseren grundlæggende vejledning om dens anvendelse.
Scriptet er opmærksom på sikkerhedskopier, der køres fra Avamar, men sendes til Data Domain.
Se følgende artikel for at få oplysninger om, hvordan du finder og henter scriptet: Avamar: Sådan finder og downloader du Avamar-scripts og -værktøjer fra Dell Central Avamar-siden.
Scriptet køres ved at foranstille scriptnavnet med "ruby
" (som vist nedenfor):
ruby dump_root_hashes.rb --help
Starting up dump_root_hashes.rb version 0.10.2 at 2019-10-21 02:17:21 +0000 (2019-10-21 02:17:21 UTC) Usage: dump_root_hashes.rb [options] Overview of the script's features Running the script with the --help flag shows a list of features. Below is output showing features of the script as of release 0.10.2. Options: -q, --quiet Suppress progress counters --mode=<backuplist|backupcompare|clientlist|clientcompare|genpasswordfile|connchk> Specify the script mode. Supported modes: backuplist (default) - generate a report showing the list of all backups on the system; include the following information: -system name -client name -domain -backup create time -backup expiration time -retention tags -backup size -root hash backupcompare - generate a report showing backup information for both source and target; requires a --dstaddr parameter clientlist - generate a report showing the client information for all client accounts clientcompare - generate a report showing the client information for both source and target; requires a --dstaddr parameter genpasswordfile - generate a file containing obfuscated login credentials connchk - run a GSAN connectivity test -s, --srcaddr=ADDRESS Specify the replication source. Defaults to the local system. --src-password-file=FILENAME Specify a file containing credentials for the source system. Only needed if source and destination passwords differ. -d, --dstaddr=ADDRESS Specify the replication destination for "compare" modes --dst-password-file=FILENAME Specify a file containing credentials for the destination system. Only needed if source and destination passwords differ. Filtering Options: NOTE: Filter flags apply to BOTH source AND destination systems unless otherwise noted! --before=DATE Only report on backups created before DATE. This date can be any string understood by the GNU "date" utility. --after=DATE Only report on backups created after DATE. This date can be any string understood by the GNU "date" utility. --srcpath=PATH Limit reporting on the source system to domains and clients under the specified path. --dstpath=PATH Limit reporting on the destination system to domains and clients under the specified path. --mc-deleted=<include|skip> Skip the MC_DELETED domain by default --mc-retired=<include|skip> Traverse the MC_RETIRED domain by default --partials=<include|skip> Skip partial backups by default --expired=<include|skip> Skip expired backups by default --replicate=<include|skip> Traverse the REPLICATE domain by default --system-accounts=<include|skip> Skip the system accounts MC_BACKUPS, EM_BACKUPS, AVI_BACKUPS, etc. by default --adme=<include|skip> Skip the ADME domain by default Output Options: --outfile=FILENAME The report is written to this file. Defaults to "<mode>.csv", where <mode> is the script mode. The file is overwritten if it exists. --format=<csv> Data format to use for export. Supported formats: csv (default) - comma separated values; suitable for spreadsheet import --[no-]showprectime Include the backup creation precision time in report --[no-]show-ddr-info Include DDR presence information and ddrindex in report --[no-]show-tier-info Include cloud tiering information in report --[no-]showbackuptype Include the backup type (Full, Incremental+Full, etc. in report --[no-]showhybridbackups Detect hybrid backups, where a DD backup has data on GSAN (slow) --hybridsearchtimeout=n How long to wait for hybrid backup search avtar calls to return in seconds. Defaults to 300s. Set to 0 to disable timeout. --[no-]showlabel Include the backup's text label in report --[no-]showpidnum Include the backup's plugin id (pid number / pidnum) in report --[no-]showpiddesc Include a short plugin description for each backup in report --compression=<none|gzip> Use the specified compression for the output file. Defaults to gzip. --presence=src,dst,both Limit output to records only on the src, only on the dst, on both systems, or some combination thereof Shows all records by default (equivalent to --presence=src,dst,both) --[no-]header Include the header line in CSV files Script Options: --debug Enable debug logging. --memory-limit=n How much virtual memory the script can use in bytes. Defaults to 4GB. --avmgrdebug=<none|getl|getb|all> Enable debugging for avmgr queries. Defaults to none. --avmgr-debug-file=FILENAME Write avmgr debug information to the specified file. Defaults to drh_avmgr_debug.log. --getl-timeout=n How long to wait for avmgr getl to return in seconds. Defaults to 60s. Set to 0 to disable timeout. --getl-retries=n How many times to retry an avmgr getl command before giving up. Defaults to 5. --getb-timeout=n How long to wait for avmgr getb to return in seconds. Defaults to 300s (5 minutes). Set to 0 to disable timeout. --getb-retries=n How many times to retry an avmgr getb command before giving up. Defaults to 5. --encrypt=<none|proprietary|ssl|tls|tls-sa> Set encryption mode. Defaults to tls. --src-encrypt=<none|proprietary|ssl|tls|tls-sa> Set source encryption mode. Overrides --encrypt if both are specified. Defaults to tls. --dst-encrypt=<none|proprietary|ssl|tls|tls-sa> Set destination encryption mode. Overrides --encrypt if both are specified. Defaults to tls. -h, --help Display help text -v, --version Display version information
Ikonet dump_root_hashes.rb
script kan være nyttigt til at identificere overskydende eller manglende sikkerhedskopier, hvor kunder kan have konfigureret et par replikerende Avamar-gitre. Generelt er forventningen, at kapacitetsniveauerne er ens, og i det mindste op til de foregående dages sikkerhedskopier er blevet replikeret.
Eksempel:
Følgende kommandoer skal køres på kilden Avamar-gitteret. Angiv Avamar-destinationsservernavnet i kommandoen og backupcompare
tilstand aktiveres. (De nyeste versioner af scriptet rapporterer automatisk om eventuelle sikkerhedskopier, der er registreret på Data Domain):
ruby dump_root_hashes.rb --dstaddr=<target-avamar-servername>
Failed to connect to GSAN on avamar2.xxx.com. Check name resolution, network connectivity, and firewall settings.
For at scriptet kan køre korrekt, skal der genereres en sløret adgangskodefil ved at køre scriptet i tilstanden "genpasswordfile".
Af sikkerhedsmæssige årsager kan legitimationsoplysninger ikke overføres direkte til scriptet ved hjælp af kommandolinjen:
admin@avamar1:~/>: ruby dump_root_hashes.rb --mode=genpasswordfile
Starting up dump_root_hashes.rb version 0.8.3 at 2018-02-16 14:14:34 +0000 (2018-02-16 14:14:34 UTC) Running in password file generation mode. Password filename: avamar2.pass Username [root]: Password: Encoding password Writing encoded password to /space/home/admin/avamar2.pass Password information successfully written to /space/home/admin/avamar2.pass Use --src-password-file=/space/home/admin/avamar2.pass or --dst-password-file=/space/home/admin/avamar2.pass to pass these credentials into the script.
Denne adgangskodefil kan derefter overføres til scriptet ved hjælp af en af parametrene ovenfor (afhængigt af om du forsøger at oprette fjernforbindelse til kilden eller destinationen).
Eksempel:
ruby dump_root_hashes.rb --dstaddr=<target-avamar-servername> --dst-password-file=<path-to-password-file> --show-ddr-info
Når scriptet er fuldført, genereres en .csv fil med navnet med et format, der ligner dette:backupcompare_<source>_to_<target>.domain.com_YYYY-MM-DD_HHMM
Filen kan åbnes i Excel og er formateret med følgende kolonnenavne:
Disse kolonner kan bruges til at sortere og filtrere dataene.
Af særlig nytte i denne situation er den første kolonne 'Nøgle'. Værdierne her angiver, om sikkerhedskopien er gemt på kildesystemet (S), på destinationen (D) eller på begge systemer (B).
Vi forventer, at kildesystemet muligvis har sikkerhedskopier, der (endnu) ikke er til stede på målet. Dette skyldes naturlig forsinkelse mellem det tidspunkt, hvor sikkerhedskopien skrives til kildesikkerhedskopien, og replikeres til målet (normalt inden for den næste dag).
Se denne video: