05-08-2023, 07:00 AM
Dear Sir,
I've seen your YouTube video concerning large vs small drives with a lot of interest. I was hoping to find an answer to the issue of VERY long rebuild times on RAID5/6 systems with very large drives. In this rebuild period your array is very vulnerable, and a few URE's can make the entire RAID corrupt. I even think there is a graph, where it's pointed out that RAID 5 is no longer considered 'safe' when using large drives. As I'm about to upgrade my system to a 12 bay Synology NAS, I want the safest setup possible. Currently I'm using RAID 6, but is this still safe when using >20TB drives? Should I be considering other options like RAID 10 or ZFS or ... ?
I'm also using RAID scrubbing which is is a solution to prevent URE's I guess? And I also have an old NAS to backup the main system. I know RAID is not a backup, but it would be a real big bummer if the RAID system crashes during a rebuild.
Thanks,
Mark
I've seen your YouTube video concerning large vs small drives with a lot of interest. I was hoping to find an answer to the issue of VERY long rebuild times on RAID5/6 systems with very large drives. In this rebuild period your array is very vulnerable, and a few URE's can make the entire RAID corrupt. I even think there is a graph, where it's pointed out that RAID 5 is no longer considered 'safe' when using large drives. As I'm about to upgrade my system to a 12 bay Synology NAS, I want the safest setup possible. Currently I'm using RAID 6, but is this still safe when using >20TB drives? Should I be considering other options like RAID 10 or ZFS or ... ?
I'm also using RAID scrubbing which is is a solution to prevent URE's I guess? And I also have an old NAS to backup the main system. I know RAID is not a backup, but it would be a real big bummer if the RAID system crashes during a rebuild.
Thanks,
Mark