ReclaiMe Data Recovery Training

NAS Recovery Course - NAS Recovery Preparations Test

Choose the advantage of disk images compared to disk clones

reliability
speed
convenience in storage and archival

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

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

Choose the advantage of disk clones compared to disk images

convenience in storage and archival
speed
reliability

Check what you should ask a client about a NAS configuration

whether a client changed an array type
whether a client used disks of the same model in a NAS
whether a client ever replaced disks
whether a client ever added disks

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

no
yes, but it's better than nothing
yes

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

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

main MBR
GPT database
EFI PART signature
EXT i-node

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

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

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

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

Next lesson - Partitions in NASes

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