ReclaiMe Data Recovery Training

NAS Recovery Course - Overall Test

Check the most common types of NAS failure

filesystem failure
disk failure
NAS box failure

In case of filesystem damage you need to recover an array configuration

true
false

If both LVM and md metadata are good then

you need to recover RAID configuration only if disks were upgraded
you need to recover RAID configuration anyway
you do not need to recover an array configuration

When you do not need to recover RAID configuration when recovering a NAS?

you deal with RAID5 with all disks present
you deal with RAID5 with one disk missing
you deal with XFS
LVM and md metadata are good

In case of filesystem damage LVM and md-raid metadata are usually correct

false
true

If md metadata is damaged then

you need to recover RAID configuration only if LVM is damaged
you need to recover RAID configuration only if LVM is good
you need to recover RAID configuration
you need to recover RAID configuration only if disks were upgraded

Does it make sense to launch two data recovery tools in turn over the same set of NAS disks?

yes, to be sure that nothing is overlooked due to difference in data recovery algorithms
no, it is just a waste of time, all major data recovery tools work the same way

What is the recommended approach when recovering an array configuration on NAS disks?

create regions on NAS disks and do RAID recovery on them
do RAID recovery on the physical disks

What is the first step in NAS recovery?

ask a client about a NAS and NAS failure
clone the disks
identify the filesystem on a NAS

In case of filesystem damage you need to

do RAID recovery first and then file recovery
do file recovery
create regions on NAS disks, do RAID recovery, and then file recovery

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