Data Domain: Replikointikontekstin mukaan ohjelmallisesti lukittua tilannevedosta ei voi poistaa

Summary: Löytyi tilannevedos, luotu vuosia sitten ja säilytetty edelleen, vaikka se on vanhentunut. Ei voi poistaa, koska se on lukittu pehmeästi

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Symptoms

- Vuosia sitten luotu tilannevedos säilytetään edelleen, vaikka se on jo merkitty vanhentuneeksi:

ddboost@dd02# snapshot list mtree /data/col1/avamar-1493130520
Snapshot Information for MTree: /data/col1/avamar-1493130520
----------------------------------------------
Name                Pre-Comp (GiB)   Create Date         Retain Until        Status
-----------------   --------------   -----------------   -----------------   -------
cp.20250309131143         213612.6   Mar  9 2025 07:13   Mar 10 2025 07:39   expired
cp.20250309133359         214727.3   Mar  9 2025 07:34   Mar 10 2025 07:41   expired
cp.20250310131141         207612.0   Mar 10 2025 07:13
cp.20250310133957         208726.9   Mar 10 2025 07:40
cp.20230919134341         403018.8   Sep 19 2023 07:44   Sep 20 2023 07:34   expired 
-----------------   --------------   -----------------   -----------------   -------

- Tilannekuva näkyy lokitiedostossa pehmeästi lukittuna ddfs.info
HUOMAUTUS: Helpoin tapa kaapata tiedosto olisi kopioida se SCP: n avulla Data Domainista (DD) toiseen Linux-koneeseen. Varmista, että sinulla on kirjautumistunnukset, jotta voit käyttää tätä syntaksia:

admin@anylinuxmachine:~/>: scp dd_username@dd_hostname:/ddr/var/log/debug/ddfs.info .

 

admin@anylinuxmachine:~/>: grep "cp.20230919134341" ddfs.info
03/11 05:54:20.569 (tid 0x7fb71d0e6f10): rmsnapshot: mid=1583172823 s_name=cp.20230919134341.
03/11 05:54:20.569 (tid 0x7fb71d0e6f10): _dm_rmsnapshot: snapshot 'cp.20230919134341' is softlocked.

- Data Domain -ilmoituksessa näkyi yksi hälytys, joka liittyi yhteen synkronoimattomaan replikointikontekstiin:

ddboost@dd02# alerts show current
Id      Post Time                Severity Class       Object             Message															
------- ------------------------ -------- ----------- ------------------ ----------------------------------------------------------------
p0-924  Tue Nov 28 09:35:07 2023 CRITICAL Network     Interface Index=11 EVT-NETM-00001: Network interface connectivity is down on ethMc.
m0-1971 Mon Mar 10 06:56:36 2025 WARNING  Replication context=1          EVT-REPL-00006: Sync-as-of time is more than 13109 hours ago.
------- ------------------------ -------- ----------- ------------------ ----------------------------------------------------------------
There are 2 active alerts.

- Luetteloimalla replikointikontekstit Data Domain -replikointilähteessä on mahdollista saada tiedot kyseisestä kontekstista #1.
- Replikointikontekstissa #1 on sekä lähde että kohde, jotka viittaavat mtreeen, jossa tilannevedos on lukittu.

avamar@dd02# replication show config
CTX Source                                                 	   Destination                                               	 Connection                        
																															 Host and Port                     
--- ---------------------------------------------------------- ------------------------------------------------------------- ------------------------------------- 
1   mtree://dd02.yourdomain.com.br/data/col1/avamar-1493130520 mtree://ddvault.yourdomain.com.br/data/col1/avamar-1493130520 ddvault.yourdomain.com.br   (default) 
2   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01               ddvault02.vault         	 (default) 
3   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01repl           ddvault02.vault         	 (default) 
4   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv02     mtree://dd03.yourdomain.com.br/data/col1/SysDR-R_ppmsv02      dd03.yourdomain.com.br      (default) 
5   mtree://dd02.yourdomain.com.br/data/col1/MtreeVault        mtree://ddvault02.vault/data/col1/Mtreevaultdest          	 ddvault02.vault         	 (default) 
6   mtree://dd02.yourdomain.com.br/data/col1/avamar-1493130520 mtree://ddvault02.vault/data/col1/avamar-1493130520dest   	 ddvault02.vault         	 (default) 
7   mtree://dd02.yourdomain.com.br/data/col1/CritMtreeVault    mtree://ddvault02.vault/data/col1/CritMtreeVaultDest      	 ddvault02.vault         	 (default) 
8   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01dest       	 ddvault02.vault         	 (default) 
--- ---------------------------------------------------------- --------------------------------------------------------- 	 ------------------------------------- 
DD System default Max-repl-streams per context: 32

 

HUOMAUTUS: Vianmäärityksen aikana diagnosoitua kohdeisäntää, jonka nimi on ddvault.yourdomain.com.br, ei enää ole. Se sammutettiin ja poistettiin.

Cause

- Vanha ja enää käytetty replikointikonteksti, joka viittasi mtreeyn, jossa tilannevedos on, lähdetietoalueella, piti tätä pehmeää lukkoa.
- Data Domain on poistettu/poistettu ympäristöstä, mutta replikointikontekstia, joka viittaa poistettuun Data Domainiin, ei poistettu, joten se jäi taakse. 

Resolution

- Meidän on katkaistava (on prosessi replikointikontekstin poistamiseksi) replikointilähteen Data Domainista.
- Kirjaudu Data Domainiin ja luettele replikointimääritykset tarkistaaksesi ja vahvistaaksesi rikottavan/poistettavan kontekstin (tässä esimerkissä konteksti #1):

ddboost@dd02# replication show config
CTX Source                                                 	   Destination                                               	 Connection                       
																															 Host and Port                    
--- ---------------------------------------------------------- ------------------------------------------------------------- -------------------------------------
1   mtree://dd02.yourdomain.com.br/data/col1/avamar-1493130520 mtree://ddvault.yourdomain.com.br/data/col1/avamar-1493130520 ddvault.yourdomain.com.br   (default)
2   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01           	 ddvault02.vault         	 (default)
3   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01repl       	 ddvault02.vault         	 (default)
4   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv02     mtree://dd03.yourdomain.com.br/data/col1/SysDR-R_ppmsv02      dd03.yourdomain.com.br      (default)
5   mtree://dd02.yourdomain.com.br/data/col1/MtreeVault        mtree://ddvault02.vault/data/col1/Mtreevaultdest          	 ddvault02.vault         	 (default)
6   mtree://dd02.yourdomain.com.br/data/col1/avamar-1493130520 mtree://ddvault02.vault/data/col1/avamar-1493130520dest   	 ddvault02.vault         	 (default)
7   mtree://dd02.yourdomain.com.br/data/col1/CritMtreeVault    mtree://ddvault02.vault/data/col1/CritMtreeVaultDest      	 ddvault02.vault         	 (default)
8   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01dest       	 ddvault02.vault         	 (default)
--- ---------------------------------------------------------- ------------------------------------------------------------- -------------------------------------
DD System default Max-repl-streams per context: 32

- Anna komento replikointikontekstin katkaisemiseksi:

ddboost@dd02# replication break rctx://1
The 'replication break' command irrevocably turns off logical
replication from this mtree.  To reconfigure the mtree
for replication, the destination mtree must not exist,
or, alternatively, 'replication resync' must be used.
        Are you sure? (yes|no) [no]: yes
ok, proceeding.
ddboost@dd02#
HUOMAUTUS: Tauon suorittamisen aikana näkyvää viestiä käytetään yksinomaan poistettavaan replikointikontekstiin. Se EI vaikuta muihin replikointikonteksteihin.


- Listaa replikointikonfiguraatio uudelleen varmistaaksesi, että replikointikonteksti #1 on poissa:

ddboost@dd02# replication show config
CTX Source                                                 	   Destination                                             	Connection                    
																													    Host and Port                 
--- ---------------------------------------------------------- -------------------------------------------------------- ----------------------------------
2   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01         	ddvault02.vault      	 (default)
3   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01repl     	ddvault02.vault      	 (default)
4   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv02     mtree://dd03.yourdomain.com.br/data/col1/SysDR-R_ppmsv02 dd03.yourdomain.com.br   (default)
5   mtree://dd02.yourdomain.com.br/data/col1/MtreeVault        mtree://ddvault02.vault/data/col1/Mtreevaultdest        	ddvault02.vault      	 (default)
6   mtree://dd02.yourdomain.com.br/data/col1/avamar-1493130520 mtree://ddvault02.vault/data/col1/avamar-1493130520dest 	ddvault02.vault      	 (default)
7   mtree://dd02.yourdomain.com.br/data/col1/CritMtreeVault    mtree://ddvault02.vault/data/col1/CritMtreeVaultDest    	ddvault02.vault      	 (default)
8   mtree://dd02.yourdomain.com.br/data/col1/SysDR_ppmsv01     mtree://ddvault02.vault/data/col1/SysDR_ppmsv01dest     	ddvault02.vault      	 (default)
--- ---------------------------------------------------------- -------------------------------------------------------- ----------------------------------
DD System default Max-repl-streams per context: 32

- Kun replikointikonteksti #1 on poistettu, tarkista, että vanha tilannekuva merkitään automaattisesti vanhentuneeksi:

ddboost@dd02# snapshot list mtree /data/col1/avamar-1493130520
Snapshot Information for MTree: /data/col1/avamar-1493130520
----------------------------------------------
Name              Pre-Comp (GiB) Create Date        Retain Until      Status
----------------- -------------- -----------------  ----------------- -------
cp.20250317130903       214805.7 Mar 17 2025 07:10  Mar 18 2025 07:32 expired
cp.20250317132705       215924.2 Mar 17 2025 07:28  Mar 18 2025 07:33 expired
cp.20250318131055       215418.1 Mar 18 2025 07:12
cp.20250318133213       216537.6 Mar 18 2025 07:33
cp.20230919134341       403018.8 Sep 19 2023 07:44  Apr  8 2025 13:25			
----------------- -------------- -----------------  ----------------- -------

- Merkitse tilannekuva jälleen vanhentuneeksi:

ddboost@dd02# snapshot expire cp.20230919134341 mtree /data/col1/avamar-1493130520
Snapshot "cp.20230919134341" for mtree "/data/col1/avamar-1493130520" will be retained until Mar 18 2025 13:30.

ddboost@dd02# snapshot list mtree /data/col1/avamar-1493130520
Snapshot Information for MTree: /data/col1/avamar-1493130520
----------------------------------------------
Name              Pre-Comp (GiB) Create Date       Retain Until      Status
----------------- -------------- ----------------- ----------------- -------
cp.20250318131055       215418.1 Mar 18 2025 07:12
cp.20250318133213       216537.6 Mar 18 2025 07:33
cp.20230919134341       403018.8 Sep 19 2023 07:44 Mar 18 2025 13:30 expired 
----------------- -------------- ----------------- ----------------- -------

- Etsimällä tätä tilannekuvaa päivitetystä kopiosta ddfs.info, hetki, jolloin pehmeä lukko poistetaan, tallennetaan:

admin@anylinuxmachine:~/>: grep cp.20230919134341 ddfs.info
03/18 13:25:16.663 (tid 0x7fb7969b2b40): updatesnapshot: mid=1583172823 m_name=avamar-1493130520 sid=35512 name=cp.20230919134341 retention is changed from 1741692419 to 1744140316 err :0
03/18 13:25:16.666 (tid 0x7fb7969b2b40): mrepl_snap_deref deref name=cp.20230919134341 (1583172823:35512) 1 -> 0
03/18 13:25:16.669 (tid 0x7fb7969b2b40): repl ctx 1: mrepl_protect_new_base deref'ing base cp.20230919134341 Not Referenced, USER
03/18 13:25:18.680 (tid 0x7fb7969b2b40): repl ctx: mrepl_snap_ref_cleanup Unsoftlocking snapshot name=cp.20230919134341 (1583172823:35512) 
03/18 13:30:41.710 (tid 0x7fb7969b2b40): updatesnapshot: mid=1583172823 m_name=avamar-1493130520 sid=35512 name=cp.20230919134341 retention is changed from 1744140316 to 1742326241 err :0
03/18 13:30:41.710 (tid 0x7fb7969b2b40): FM fms_snapshot_update:1933 - Updated "cp.20230919134341", mtree "/data/col1/avamar-1493130520" 1742326241
03/18 13:32:50.061 (tid 0x7fb79ba174e0): rmsnapshot: mid=1583172823 s_name=cp.20230919134341.
03/18 13:32:50.076 (tid 0x7fb79ba174e0): rmsnapshot: done, mid=1583172823 m_name=avamar-1493130520 sid=35512 s_name=cp.20230919134341 retention=1742326241 ch=<dm_mtree:40000010000,1,0,400,6,0,e98eb815,440357a6,18045d05,d3463134,cadda83,9dfa4504:> cpg_id=1 cp_uuid=cf984be60de2e768:887b264e6a0bd7d6.
admin@anylinuxmachine:~/>:

- Aloita uusi tiedostojärjestelmän puhdistus

ddboost@dd02# fi clean start
Cleaning started.  Use 'filesys clean watch' to monitor progress.

ddboost@dd02# fi clean status
Cleaning started at 2025/03/18 13:32:49: phase 1 of 6 (pre-merge)
  0.0% complete, 25616 GiB free; time: phase  0:00:14, total  0:00:14

- Varmista, että vanha tilannevedos on nyt poissa, vaikka puhdistus on vielä kesken.
- Ongelma on ratkaistu:

ddboost@dd02# snapshot list mtree /data/col1/avamar-1493130520
Snapshot Information for MTree: /data/col1/avamar-1493130520
----------------------------------------------
Name              Pre-Comp (GiB) Create Date       Retain Until      Status
----------------- -------------- ----------------- ----------------- ------
cp.20250318131055       215418.1 Mar 18 2025 07:12
cp.20250318133213       216537.6 Mar 18 2025 07:33
----------------- -------------- ----------------- ----------------- ------

Affected Products

Data Domain Boost – File System
Article Properties
Article Number: 000296945
Article Type: Solution
Last Modified: 24 Mar 2025
Version:  1
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