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ReadyNas 628X new setup with 10TB drives
I just purchased a diskless version of the RN628X and purchased 8 10TB WD Gold drives. I have populated the entire unit and with 10TB drives looks like it will be maxxed out. Since this is a totally new setup I am trying to determine for overall performance (possible future drive failures with replacement etc.), would it be better to leave the X-Raid Raid 6 it came up as or switch it to Flex-Raid Raid 10 using all the drives as 1 volume. I will not use more than 1 volume and with maxxing out the drives it won't be expanded by replacing drives in future.
I am mainly interested in the Resync time or rebuild time if a drive fails and the system rebuilds/resync's after I replace the failed drive.
So far at first power up the unit initially started the resync (x-raid raid 6) and went to about 4 % in about an hour, I just changed to Flex destroyed volume and creates a single Raid 10 but it looks like it will take 444:57:24 to finish with only doing .08% in 45 minutes. Most people say the rebuild time of raid 10 in general is way faster than raid 6 but what about for the Netgear ReadyNas 628x.
Thanks for the help.
I would stick with XRaid 6 with 2 disc failure. With 10TB drives, that's a whole lot of data to lose if anything major goes wrong. While it'll take a while to rebuild 1 10TB HDD back into your system, which puts extra stress on all your other HDD's rebuilding the system. In fact if you don't NEED all that space at once. Say you only need around 10TB or so to start out. Maybe stick with just popping in 3 HDD's for XRaid5. As your system grows you can pop in another HDD and as it grows some more pop in another and so on. This way you have less wear and tear on your HDD's. You can spread that out. That's a nice thing about using XRaid. You don't need to pop in all the HDD's at once to use them. Maybe you need 6 of them to start. I have no idea why you need so much storage.
The other thing, a NAS is not a backup solution. Not unless you have 2 of them and one is backing up to the other. Backed up to a off site location is even better. All kinds of things could happen. You could be robbed. You could have a fire. You could have a major NAS crash. Who knows. With 10 10TB HDD's in Xraid6, that's about 55TB of Data you could lose at once if full. Generally when you have that much to backup, you really need a second NAS, with just as much storage space. I'm sure you spent a bundle already.
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There's a fix for the calculations shown in the web interface for RAID-10 syncing in ReadyNASOS 6.8.1-RC1
I would stick with XRaid 6 with 2 disc failure. With 10TB drives, that's a whole lot of data to lose if anything major goes wrong. While it'll take a while to rebuild 1 10TB HDD back into your system, which puts extra stress on all your other HDD's rebuilding the system. In fact if you don't NEED all that space at once. Say you only need around 10TB or so to start out. Maybe stick with just popping in 3 HDD's for XRaid5. As your system grows you can pop in another HDD and as it grows some more pop in another and so on. This way you have less wear and tear on your HDD's. You can spread that out. That's a nice thing about using XRaid. You don't need to pop in all the HDD's at once to use them. Maybe you need 6 of them to start. I have no idea why you need so much storage.
The other thing, a NAS is not a backup solution. Not unless you have 2 of them and one is backing up to the other. Backed up to a off site location is even better. All kinds of things could happen. You could be robbed. You could have a fire. You could have a major NAS crash. Who knows. With 10 10TB HDD's in Xraid6, that's about 55TB of Data you could lose at once if full. Generally when you have that much to backup, you really need a second NAS, with just as much storage space. I'm sure you spent a bundle already.
JBDragon1 wrote:
I would stick with XRaid 6 with 2 disc failure.
If a 40 TB volume is big enough, he could also consider RAID-60 and 4 RAID-1 volumes.
RAID-60 actually offers the highest protection against routine disk failures - protecting against two-four failures, depending on where they occur. With 8 disks, the overhead is similar to RAID-10 (40 TB volume).
Multiple RAID-1 volumes has the fastest resync, and is the easiest for data recovery (since only one disk is needed to recover the data on that volume).
Those are some good points.
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