homelab/docs/ADR/005-NAS.md

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# NAS
## 001 New Nas spec
### Status
In progress
### Context
Storage:
- Data filesytem will be in btrfs.
- Study if keep root filesystem in EXT4.
- Need to use LVM over btrfs added posibility to add cache later (cache on cold data useless on beginning maybe write cache in future use).
- hot Data (nomad, document,fresh download file,music?) on SSD cold DATA on HDD (film, serie photo)
- at least 2 HDD and 2 SSD
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Hardware:
- network 2.5 gpbs will be good for evolve
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- at least 4go ram (expansive will be appreciable)
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Software:
be able to install custom linux distrib
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### Decision
- Due to form factor/consumption and SSD capability my choise is on ASUSTOR Nimbustor 2 Gen 2 AS5402, he corresponding to need and less expensive than a DIY NAS
- buy only a new ssd of 2to in more to store system and hot data
### Cosequence
need to migrate Data and keep same disk
- install system
- copy all data from 2to HDD to SSD then format 2to HDD
- copy download data to FROM 4 to HDD to SSD
- copy serie to 2to HDD and copy film on external harddrive