๐๏ธ Storing data
How is data stored?
On premisies#
Hard drives#
- SSD
- HDD
ใ
ค- Storing on a single HDD and SSD can be risky
ใ
ค- No backup
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ค- You have to have the drive with you at al times to use it.
Portable storage devides#
- Flash drives
- CD
- DVD
- Portable SSD
- SD card
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ค- You have to take it around with you
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ค- Not ideal for large businesses who collaborate
File servers#
- NAS
ใ
ค- Can be accessed by anyone on a network
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ค- Easily accessible
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ค- Connects through a network, instead of directly into a computer
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ค- If power supply fails, no access
- SAN
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ค- Storage area network
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ค- Used in enterprises (expernsive)
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ค- If a simgle disk fails, the SAN continutes
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ค- Robust
ใ
ค- Appears as a single drive
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ค- Linked using fibre optics
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ค- Block based storage
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คใ
ค- A physical record