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Forum Discussion
After Factory reset, quickest way to X-Raid2 with Dual redundancy 6x 2TB drives (RNDP6000)
I have 3 of the pro ready NAS drives (6 bays), one business and to readynas pro RNDP6000. One is set up as the "in use" drive and the other two are for back up. The "in use" drive was set up as XRA...
495brian wrote:
Can someone tell me the quickest way to set this 6 drive array as x-raid 2 with dual redundancy.
What I suggest is installing 5 drives first, and let it set up as XRAID-2 single redundancy. Then set the system to "add the next disk for redundancy" and hot-insert the final drive. That might not be "quickest", but it works reliably the first time.
495brian wrote:
Without any data on it I don't understand why it takes so long to "set up", what exactly is being copied for configuring drive 6?
RAID basically creates a virtual disk volume that sits between the physical drives and the file system. Each sector of the volume is protected by the RAID partity blocks - the RAID layer has no idea if the sectors are used or not. During the sync process, the system is mostly computing the parity blocks.
The quickest way on RAIDiator-x86 would be to do a factory reset, click setup in RAIDar during the 10 minute countdown and choose X-RAID2 and check the dual-redundancy option.
On OS6 the quickest way would be to disable X-RAID, delete the default volume and create a new one using RAID-6 and then re-enable X-RAID. It's preferable to call the new volume "data" (no quotes).
mdgm wrote:
The quickest way on RAIDiator-x86 would be to do a factory reset, click setup in RAIDar during the 10 minute countdown and choose X-RAID2 and check the dual-redundancy option.
True. I take a pretty cautious approach here, because I've had some trouble with the RAIDar method with jbod (often I've ended with spanning RAID-0, and had to do it over). Though this scenario is different.
mdgm-
Do you also suggest the reset with 5 drives and then add the 6th as a hot swap to select dual redundancy? I originally tried to do the reset with 6 drives in and it looked like it was xraid2 with single redundancy, but I didn't let it finish syncing with the 6th drive, I powered off and did another reset with two drives and it took all day today to sync. I wish I would have just let it finish with 6, it had only 1.5 hours "remaining".
Thanks for the advice.
You can do a factory reset with 5 drives in place if you want, yes.
Hi All- Just an update to the process for other out there. The reboot with 5 drives was quick, less than 10 minutes to set up and establish a new volumne. The 5th drive to re-sync took about 4 hours, but I let it run overnight. Following this completion a login through RAIDar allowed me to select what the option would be for the next drive to expand the volume or add dual redundacy. I selected Dual and popped in the 6th 2TB drive. The restripping is now occurring and will take 120 hours!
As I've read this process is increased due to the drive size (not data because the volume is still empty), but I was shocked it will take so long.
Have others had this same experience for time for restriping?
495brian wrote:
The restripping is now occurring and will take 120 hours!
In my experience the estimated times are not very accurate. The process does happen in the background, so actual time depends on what else the NAS is doing.
Thanks SetphenB,
I was hoping that was the case, but it really looks like it will take another 80 hours...about 1% / hour. I'm hoping the process doesn't run into any troubles so I can begin to back up the other NAS and be done sometime before thanksgiving!
Best,
Brian
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