Regarding Raid technology

[tejasrelekar]

i want to put a 250gb ssd and two hdd in a pc of which ssd will store only os and apps where 2 hdds 4tb per will store data which raid technology should i use

 

[kanewolf]

For ANY protection of the data the only choice with two disks is RAID1. But, for PC I generally don't recommend RAID. The protection provided is limited to a single drive failure. Loss of data is more likely from other reasons (including RAID rebuild). Use one of the 4TB as a data drive and get good backup software and do backups to the other drive.

 

[tejasrelekar]

sir actually this is going to work as an server and i want one 4tb drive just to keep backup data

 

[kanewolf]

The function of the host (desktop vs server) is not really relevant.
Read these two articles
https://www.smallnetbuilder.com/nas/nas-features/31745-data-recovery-tales-raid-is-not-backup
https://www.smallnetbuilder.com/nas/nas-features/32168-data-recovery-tales-prepare-the-right-way-for-raid-failure

And see if you still think that RAID is proper. With two drives, I would not recommend RAID.

 

[marko55]

Great points as usual from Kanewolf. RAID isn't backup, and with two disks, backups are far more beneficial than RAID-1. Especially for a server for file storage.

RAID-1 (mirror) isn't gonna help you if someone screws up a file or deletes it. Backup protects you from that and can provide multiple versions of a backed up file.

Now, if you wanna actually boost performance for multiple people accessing data and provide some disk redundancy you start talking about parity RAID (5,6) or RAID-10, but cost starts going up. Even if you were to go this route, you should still be backing the data up to some external drive.

 

[USAFRet]

i want to put a 250gb ssd and two hdd in a pc of which ssd will store only os and apps where 2 hdds 4tb per will store data which raid technology should i use

What result do you expect to get from the RAID array?