ReclaiMe Data Recovery Training

NAS Recovery Course - NAS Recovery Preparations Test

Choose the advantage of disk clones compared to disk images

convenience in storage and archival
reliability
speed

Check based on what you can estimate the state of physical disks in a NAS

the words of a client
sounds coming from the disks
the S.M.A.R.T. attributes

When recovering a NAS, it is always better to create disk image files rather than disk clones

true
false

Check those S.M.A.R.T. attributes pointing to the bad condition of a disk

The information about a NAS coming from a client is often unreliable

yes, but it's better than nothing
no
yes

What do you need to try if the sum of sizes of partitions does not correspond to the size of a physical disk and you suspect the sector size is uncorrect?

multiply the total size of partitions by 8
divide the total size of partitions by 8
multiply the total size of partitions by 4

What helps you determine a sector size for disks partitioned with GPT?

EXT i-node
main MBR
GPT database
EFI PART signature

Why they do not recommend storing several disk image files on the same disk when recovering data?

recovery will be too slow
the disk may degrade due to the frequent read requests

The sum of partition sizes should be close to the size of a physical disk with both MBR and GPT disks

false
true

You need to check sector sizes for each disk form a NAS when

disks of different models are used in a NAS
a client does not remember what sector sizes he/she set up when installing disks
array type has been changed

Next lesson - Partitions in NASes

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