Raid 5 on computer and also the NAS that is backing up the computer. Is this redundent? help please!!!
- Thread starter bjkill
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- Dec 2, 2009
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1TB x 2 Raid5
needs clarification. Are you running two raid5 arrays each with 1tb of space, ie - five 250gb drives on each array
or did you mean to say two 1TB drives in a raid0 or raid1 ? (You cant run raid5 with 2 drives.)
needs clarification. Are you running two raid5 arrays each with 1tb of space, ie - five 250gb drives on each array
or did you mean to say two 1TB drives in a raid0 or raid1 ? (You cant run raid5 with 2 drives.)
Trent Quan-Sing
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- Jun 5, 2013
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Your internal Raid 5 will only protect your hardware and does not protect you from data corruption through other means.
EG. Corruptions in the file system, viral infections, accidental deletions etc.
This is where your NAS backup will help you on your files.
A RAID 5 is not invincibility, all your data is vulnerable at any point in time, just much less to hardware faults.
EG. Corruptions in the file system, viral infections, accidental deletions etc.
This is where your NAS backup will help you on your files.
A RAID 5 is not invincibility, all your data is vulnerable at any point in time, just much less to hardware faults.
sub mesa
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- Apr 17, 2009
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Most RAID5 engines are not very reliable; a lot can go wrong with RAID5.
If you have a full backup both stored on RAID5, then you will be reasonably safe but probably not as safe as you'd think. A simple thing like bad sectors can destroy one copy, and silent corruption can corrupt the backup.
If you want true reliable storage, you should invest your time and effort in ZFS; which simply is THE best storage technology to utilise at this point in time. It offers RAID-Z which is superior to RAID5.
If you have a full backup both stored on RAID5, then you will be reasonably safe but probably not as safe as you'd think. A simple thing like bad sectors can destroy one copy, and silent corruption can corrupt the backup.
If you want true reliable storage, you should invest your time and effort in ZFS; which simply is THE best storage technology to utilise at this point in time. It offers RAID-Z which is superior to RAID5.
- Dec 2, 2009
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In regards to 'Is this overkill' - no, its not enough actually.
Think I'm kidding? go start a backup from your pc raid5 to the synology and while its running go out to and kill the power to the whole house. Odds are both your pc's and Synology's raid5's are now dead with a good chance all the drives have now suffered platter damage.
You have decent 'hot' backup but it doesn't appear you have any true backup. Find a backup solution that won't be powered on all the time. Removable HDD's, Tape, or Optical disk are often good for just that truly important data, like family pics. You can re-rip movies & music so those aren't real important.
And get UPS's for your synology and pc.
Think I'm kidding? go start a backup from your pc raid5 to the synology and while its running go out to and kill the power to the whole house. Odds are both your pc's and Synology's raid5's are now dead with a good chance all the drives have now suffered platter damage.
You have decent 'hot' backup but it doesn't appear you have any true backup. Find a backup solution that won't be powered on all the time. Removable HDD's, Tape, or Optical disk are often good for just that truly important data, like family pics. You can re-rip movies & music so those aren't real important.
And get UPS's for your synology and pc.
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