DataDomain
Inhaltsverzeichnis
DataDomain
Infos
Pre-Comp = Data written before compression Post-Comp = Storage used after compression Global-Comp Factor = Pre-Comp / (Size after de-dupe) Local-Comp Factor = (Size after de-dupe) / Post-Comp Total-Comp Factor = Pre-Comp / Post-Comp Reduction % = ((Pre-Comp - Post-Comp) / Pre-Comp) * 100
FAQ
Wichtigster Befehl!
system show droid
Web GUI funktioniert nicht
Meldung im WebGUI:
- Service not available*
adminaccess disable http adminaccess disable https . adminaccess enable http adminaccess enable https
noch ca 2-5min warten bis es wieder funktioniert.
System Stats auslesen
This command displays a quick look at real-time statistics for key system areas, including: CPU, NFS and CIFS protocols, network traffic, disk read and write rates and replication statistics. This is a good way to measure raw throughput on the storage system
system show stats int 2
The next command to show Data Domain Boost statistics in real time.
ddboost show stats int 2
File Transfer ab DD
Um ein File ab einer DD zu kopieren gehe wie folgt vor:
- logge dich mit dem CLI auf der DataDomain ein
system show serialno priv set se se ls -slh /ddvar/core/ SE@hddeh3## se ls -slh /ddvar/core/ total 15G 4.0K -rw-r--r-- 1 root admin 3.7K May 2 03:13 ddfs-kernel-20160502-03.10.out 4.0K -rw-r--r-- 1 root admin 3.5K May 4 03:38 ddfs-kernel-20160504-03.38.out 4.0K -rw-r--r-- 1 root admin 3.7K May 5 03:17 ddfs-kernel-20160505-03.14.out 4.0K -rw-r--r-- 1 root admin 3.5K Jul 6 03:10 ddfs-kernel-20160706-03.10.out 4.0K -rw-r--r-- 1 root admin 3.5K Jul 19 00:48 ddfs-kernel-20160719-00.48.out 15G -rw-r--r-- 1 root admin 15G Jul 19 01:29 ddfs.core.4214.1468882157.gz 548K -rw-r--r-- 1 root admin 541K Apr 27 03:16 ddfs.mini.10007-20160427-03.16.26.log 544K -rw-r--r-- 1 root admin 540K Apr 29 03:22 ddfs.mini.22194-20160429-03.22.23.log 500K -rw-r--r-- 1 root admin 495K May 4 03:39 ddfs.mini.25270-20160504-03.38.55.log 612K -rw-r--r-- 1 root admin 605K Jul 6 03:10 ddfs.mini.29666-20160706-03.10.29.log 500K -rw-r--r-- 1 root admin 493K Jul 19 00:49 ddfs.mini.4214-20160719-00.48.55.log 532K -rw-r--r-- 1 root admin 526K May 2 03:11 ddfs.mini.5287-20160502-03.10.45.log 480K -rw-r--r-- 1 root admin 475K May 5 03:15 ddfs.mini.8298-20160505-03.14.54.log 0 -rw-r--r-- 1 root admin 0 May 2 03:18 invoke_savecore.log SE@hddeh3##
- logge dich auf dem Targetlinuxserver ein
scp sysadmin@[DataDomain]://[PFAD/DATEI] z.B.: scp sysadmin@hddeh3://ddvar/core/ddfs.core.4214.1468882157.gz .
- Falls nötig, kann nun vom Targetserver die Datei via WinSCP weg kopiert werden
fail in to a "limited session" mode
Error sieht etwa so aus
neuenschwank@hnix1a:~> ssh sysadmin@hddca2 Data Domain OS Password: X11 forwarding request failed on channel 0 Last login: Sat Feb 6 14:05:47 CET 2016 from 172.21.42.217 on gui ** ** NOTICE: You are logged in. However not all services are initialized. ** Some commands may fail. Re-login later for full functionality. ** Do you wish to continue with limited session functionality? (yes|no) [no]: yes Welcome to Data Domain OS 5.7.0.4-513368 ---------------------------------------- (limited session) # (limited session) # (limited session) # (limited session) # (limited session) # disk show state **** Error retrieving information (**** Error communicating with management service.). (limited session) #
The error communicating with management service alert is caused by the SMS service being in a hung state. It typically appears to happen randomly after DD OS upgrades. The resolution is to manually restart this service. Please could you try and run the following commands over a cli session?
#system show serialno #priv set se #se sms restart
(This will restart SMS)
Filesystem commands and the Management Service should now work without issue.
Hostname ändern
net set hostname
Dazu müssen nachher noch zwei Sachen geändert werden.
- Im DDMC muss das alte Zertifikat geändert werden.
adminaccess trust show adminaccess trust del host hddxx1.pnet.ch adminaccess trust add host hddxx2.pnet.ch
- Die Replikationen (falls vorhanden) müssen auf den neuen Hostname geändert werden.Auf dem Source Host und auf dem Destination Host ausführen:
replication show config all replication disable mtree://hddxx1.pnet.ch/data/col1/zf2_sql_bak replication modify mtree://hddxx1.pnet.ch/data/col1/zf2_er2_img_repli destination-host hddxx2.pnet.ch replication enable mtree://hddxx2.pnet.ch/data/col1/zf2_er2_img_repli
