ReclaiMe Data Recovery Training

NAS Recovery Course - NAS Recovery Preparations Test

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

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

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

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

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

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

EXT i-node
main MBR
GPT database
EFI PART signature

Check what information you can get if you know a NAS vendor and exact NAS model

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

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

Choose the advantage of disk clones compared to disk images

speed
convenience in storage and archival
reliability

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

no
yes
yes, but it's better than nothing

Check what you should ask a client about a NAS configuration

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

Choose the advantage of disk images compared to disk clones

convenience in storage and archival
reliability
speed

Next lesson - Partitions in NASes

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