ReclaiMe Data Recovery Training

NAS Recovery Course - NAS Recovery Preparations Test

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

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

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

true
false

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?

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

Check what you should ask a client about a NAS configuration

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

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

yes
no
yes, but it's better than nothing

Choose the advantage of disk images compared to disk clones

reliability
convenience in storage and archival
speed

Choose the advantage of disk clones compared to disk images

speed
reliability
convenience in storage and archival

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

We have a mailing list in which we talk about interesting cases we encounter and share some tips and tricks.