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Forum Discussion
ReadyNAS NV+ and 2TB disks?
Hi there I'm wondering whether I can really expand my ReadyNAS NV+ now with 2TB disks. At the time where I bought it (some years ago) the highest supported disk size was 750GB. I do have two of them....
The factory reset can in fact be done in any version of Frontview as the problem with the 2TB drives (excepting the WD drives) is the attempt to expand the volume. The expansion needs the 16K block size which was introduced with 4.01c1-p1. Those NV/NV+ units shipped before Frontview 4.x must have a factory default in order to use 16K blocks.
Ownaish - if you install the 2 x 2TB drives in addition to the 2 x 750GB drives the 2TB drives will be recognized as 2TB but only 750GB will be used. This means you will have with X-Raid a redundant volume of about 2 GB after overhead. If on the other hand you replace the 2 x 750GB with the 2 x 2TB drives, you will have a redundant volume of about 1.8 GB after overhead. (Overhead runs about 7%)
The process for either is to use one of the 2TB drives installed in a PC to back up the current volume.
Then in case 1, with the current 750GB drives in place, do a factory default with 4.1.6. This will update the system to use the 16K blocks. Then you can restore the data from the 2TB drive back onto the current volume. Then you can hot add the two 2TB drives to the unit. Hot adding will wipe the drives and resync the volume each time you add the drives. Note: this will take a while to process each time.
Then in case 2, after the backup, install the 2TB drive not used for the backup when the unit is off. Then after it has initialized the drive and the volume is ready, copy the data back from the backup drive to the NAS. Once all the data has been restored to the NAS, you can then remove the second 2TB from the PC and hot add it to the NAS. This will wipe the drive and after the resync it will be part of the redundant volume.
In case 2, you can then use the 750GB drives as backup targets when installed in a PC.
Once 4.1.7 is released as a final version, then you can upgrade to that version. Another factory default would only be needed if you were going to use some of the Advanced Technology Western Digital drives that use the 4K sectors (not the same as the blocks) which must be aligned in order to get normal file transfer speeds.
Ownaish - if you install the 2 x 2TB drives in addition to the 2 x 750GB drives the 2TB drives will be recognized as 2TB but only 750GB will be used. This means you will have with X-Raid a redundant volume of about 2 GB after overhead. If on the other hand you replace the 2 x 750GB with the 2 x 2TB drives, you will have a redundant volume of about 1.8 GB after overhead. (Overhead runs about 7%)
The process for either is to use one of the 2TB drives installed in a PC to back up the current volume.
Then in case 1, with the current 750GB drives in place, do a factory default with 4.1.6. This will update the system to use the 16K blocks. Then you can restore the data from the 2TB drive back onto the current volume. Then you can hot add the two 2TB drives to the unit. Hot adding will wipe the drives and resync the volume each time you add the drives. Note: this will take a while to process each time.
Then in case 2, after the backup, install the 2TB drive not used for the backup when the unit is off. Then after it has initialized the drive and the volume is ready, copy the data back from the backup drive to the NAS. Once all the data has been restored to the NAS, you can then remove the second 2TB from the PC and hot add it to the NAS. This will wipe the drive and after the resync it will be part of the redundant volume.
In case 2, you can then use the 750GB drives as backup targets when installed in a PC.
Once 4.1.7 is released as a final version, then you can upgrade to that version. Another factory default would only be needed if you were going to use some of the Advanced Technology Western Digital drives that use the 4K sectors (not the same as the blocks) which must be aligned in order to get normal file transfer speeds.
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