Click the Exhibit button.
Which two data protection deployment configurations shown in the exhibit are supported? (Choose two.)
A.
configuration D
B.
configuration C
C.
configuration A
D.
configuration B
Explanation:
You can use SnapVault to protect a volume SnapMirror destination. You can perform SnapVault transfers from
the volume SnapMirror destination when you want to retain the data for a longer period.https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-CD48796E-5FD1-4C2E-B0B2-
5773B1A6203C.html
https://library.netapp.com/ecm/ecm_download_file/ECMLP2494079
pg 157
0
0
Note: A cascade chain can contain multiple SnapMirror relationships but only one SnapVault
relationship. The SnapVault relationship can occur anywhere in the chain, depending on your data protection requirements.
It is talking about SnapMirror-SnapVault cascade or in general?
Because there is also SnapVault-SnapVault cascade…
0
0
B+C Only one Sv relation in cascade.
Possible unsupported configuration detected for XDP relationship. Source volume “SVM:sv1_001” is a data-protection volume and was previously or currently is the destination of an XDP relationship.
0
0
wrong question?
all not supported
only below config is posible
sm-sv
sm-sm
sv-sm
sv-sv
0
0
The three types of cascade chain relationships that you can configure are as follows:
Mirror-mirror cascade (for FlexVol volumes only)
Mirror-SnapVault cascade (for FlexVol volumes only)
SnapVault-mirror cascade (for FlexVol volumes only)
Based on this, i think answer must be A (Configuration D) and B (Configuration C). In other words, the last two options of the Exhibit.
Source:
https://library.netapp.com/ecmdocs/ECMP1366833/html/GUID-2B4BA77A-8263-4686-9F5D-603D96F89878.html
0
0
Tested all 4 scenarios on my homelab (2 Node cluster with ONTAP 9.1 sim)
Tested within the GUI and partially using CLI to create the relationships.
A. Created 4 volumes on the same SVM. Volume1 (NAS) —-> VAULT Volume 2 (Data prot) —-> VAULT Volume3 (Data prot) —-> VAULT Volume4 (Data prot)
After that created a snapshot on volume 1, updated each SnapVault relationship from 1 to 4. Snapshot succesfully transferred onto the last volume.
B. Created 4 volumes on the same SVM. Volume 1 (NAS) —-> MIRROR Volume 2 (Data prot) —-> VAULT Volume 3 (Data prot) —–> MIRROR Volume 4 (Data prot)
After that created a snapshot on volume 1, updated Mirror relationship from 1 to 2. This was correct. Updated Vault relationship from 2 to 3 still correct. Updated Mirror from 3 to 4, failed. Just like output on Answer C.
C. Created 4 volumes on the same SVM. Volume1 (NAS) —-> VAULT Volume 2 (Data prot) —-> MIRROR Volume 3 —-> MIRROR Volume 4 (Data prot)
After that created a snapshot on volume 1, updated each SnapVault relationship from 1 to 2. This went fine, but updated relationship between 2 and 3 it failed:
Last Transfer Error:
Failed to create Snapshot copy snapshot_16102017_161631_18 on volume CIFS:hobby2. (“-source-snapshot” parameter not supported when source volume is a data-protection volume.) Due to this error i tried creating 4 NAS volumes with the same setup, relationship in Vault-Mirror-Mirror. I actually get broken relationships.
D. Havent tested this, but i am pretty certain that Mirror -> SnapVault works perfectly fine. The opposite is true, SnapVault -> Mirror doesn’t work. SnapVault -> SnapVault works aswell. So by that you can eliminate all the other possible scenarios.
So in my opinion the answers should be A (Configuration D) and C (Configuration A)
0
0
SnapVault can only be in one leg of the chain.
0
0
You must be running ONTAP 9.2 or later. Vault-vault cascades are not supported in earlier ONTAP releases.
(https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm-sanconf%2FGUID-AA48012D-3075-4889-AB81-194B40896F1F.html)
0
0