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| Question |
| What’s the difference between VNX – V – M ? |
| Answer |
| Vmax is the enterprise level storage supports only clock level. Vnx is the mid range storage will support both the file & block level |
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| Question |
| What are the necessary things for replication. i mean tools used and how is it performed. |
| Answer |
| No specific tools required. we can do it on cli as well as SMC. |
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| Question |
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| List out the features of V- max replication? |
| Answer |
| Features are point in time recovery , continuous replication , bandwidth reducation , simplified testing |
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| Question |
| Replication configured at source or destination? |
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| Answer |
| Local replication can be done in source but remote replication we need to do in both the source and destination |
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| Question |
| Tools to monitor replication status? |
| Answer |
| We can use SMC , replication manager , RPA & scripts also available |
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| Question |
| What are the replication terminologies uesd? |
| Answer |
| Local replication :- time finder & recovery point Remote replication :- SRDF & recovery point |
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| Question |
| What are the prerequisites for VMAX replication? |
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| Answer |
| its depends upon which replication we are going to create… we can check the powerlink for the same |
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| Question |
| What is recover point – is it a tool or appliance ? |
| Answer |
| It is a appliance. |
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| Question |
| Summarize about time finder and SRDF ? |
| Answer |
| Time finder is the local relication and its have snap & local… SRDF is remote replication and its have SRDF/s SRDF/A srdf/AR |
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| Question |
| Any specific advantage in vmax replication compared to other vendors? |
| Answer |
| All vendors have same replication features. |
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| Question |
| What is point in time recovery ? |
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| Answer |
| tf/snap , RPA will have the point time recovery… its same as the snap shot concept in all the storages |
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| Question |
| What is recovery point? Explain in brief? |
| Answer |
| RecoverPoint provides continuous data protection for storage arrays running on a dedicated appliance (RPA) allowing for the protection of data at both local and remote levels. RecoverPoint provides bi-directional replication enabling the recovery of data to any point in time while replicating data over any distance; within the same site (CDP), to another distant site (CRR), or both concurrently (CLR). Data transfer inside the same site is performed using fibre channel connectivity and for transfer between sites both FC and IP (WAN) is supported. Synchronous replication is supported when the remote sites are connected through FC and provides for a zero RPO. For a synchronous configuration the lag between the production and the remote is always zero since RecoverPoint does not acknowledge the write before it reaches the remote site. Asynchronous replication provides crash-consistent protection and recovery to specific points in time. |
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| Question |
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| What all parameters are consider for concluding on the bandwidth required for replication across site? |
| Answer |
| Many things need to be consider… how much distance , data… and also storage architec team have the bandwidth calculator tools.It will give the exact details |
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| Question |
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| Does vamx supports TF/Mirror? |
| Answer |
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| No it wont support. |
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| Question |
| What are the minimum bandwidth requirements for remote replication , also what cabling is used like fibre or fibre over ethernet or fcoe ? |
| Answer |
| There is no minimum requirement for bandwidth. we need to consider many things before setting the bandwidth cabling we can fcoe for long distance.. fc for shorter distance its depends upon the setup |
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| Question |
| Does it support cross vendor replication? |
| Answer |
| we cannot do the cross vendor replication… |
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| Question |
| What are the conditions for remote replication? |
| Answer |
| same size or more than the source volume need to be available… zoning need to done between local & remote replication. need to have partnership between the both storage… many things need to consider… i ll share u the doc for the same |
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| Question |
| What is bcv and when is it used ? |
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| Answer |
| bcv is the device.bcv expansion is business continuous volume. It will be used in the Time finder |
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| Question |
| What is bcv and save devices ? |
| Answer |
| The device will become part of a pool of devices that are used with TimeFinder/Snap for virtual device Snap operations and SRDF/A DSE pool to extend the available cache space for SRDF/A sessions. Symmetrix SAVE devices work in conjunction with virtual devices and can be unprotected. To configure a SAVE device, set attribute=savedev in the request to create a new device. |
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| Question |
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| How many snapshots can we create for single device and also for clone,mirror ? |
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| Answer |
| 8 clones , 15 snapshot |
