Hardware Errors on Mirrored 750GB Seagate Disk on NV+(4.1.6)

[SuperFlyBoy]

The NV+ (v1) can only use drives up to 2TB in capacity. With the transition to drives larger than 2TB in capacity lots of 2TB drives have been released with 4k sectors in preparation for the 3TB and 4TB drives that have since been released. Now the question you have to ask is even if your disks are not 4k sector disks and the 2TB disks you purchase aren't 4k sector disks if you need replacements in a few years time will there be non-4k sector disks available?

Right, so we would have to transition our hardware (NAS) to another more modern one, I would think, right?

[mdgm]

To use disks greater than 2TB in capacity you'd need a new NAS.

However what I'm saying is that you should backup your data and do a factory reset to get 4k sector partition alignment. That way you don't have to worry which 2TB disks you purchase so long as they're on the compatibility list. If a disk fails you again just have to look for one on the compatibility list to replace it.

[SuperFlyBoy]

To use disks greater than 2TB in capacity you'd need a new NAS.

However what I'm saying is that you should backup your data and do a factory reset to get 4k sector partition alignment. That way you don't have to worry which 2TB disks you purchase so long as they're on the compatibility list. If a disk fails you again just have to look for one on the compatibility list to replace it.

Right - understood.

I'm not sure I have the time to do the reset on the NV+ at this time - I think I am looking at a NAS which can backup to CrashPlan - which this one definitely cannot do, so then the extra effort is moot.

[mdgm]

Could still use this NAS as a backup NAS. Once you've migrated your data to a new NAS, update to 4.1.7 or later and do a factory default and then use the NV+ for a local backup of important data.

x86 ReadyNAS e.g. Ultra, Pro can be used with Crashplan though you'd need to enable SSH access to install it etc.

[SuperFlyBoy]

Could still use this NAS as a backup NAS. Once you've migrated your data to a new NAS, update to 4.1.7 or later and do a factory default and then use the NV+ for a local backup of important data.

x86 ReadyNAS e.g. Ultra, Pro can be used with Crashplan though you'd need to enable SSH access to install it etc.

Right - this unit is on 4.1.8 at present.

We will see how things progress - no funds to invest in another at this time...these hard drives are pretty expensive over here.

[mdgm]

Well if you can't do the reset and can't get a new NAS, make sure NOT to buy drives that are 4k sector (advanced format). Make sure you buy 2TB drives that are 512-byte drives.

[StephenB]

... That way you don't have to worry which 2TB disks you purchase so long as they're on the compatibility list. If a disk fails you again just have to look for one on the compatibility list to replace it.

I agree that it is easier/more convenient to have 4K alignment. Otherwise you have to research each 2 TB drive purchase, and the new format is already becoming mainstream on new drive models. Also (assuming this is inevitable/in your future anyway) it is much better to rebuild the array when you know the disks are good.

I'm not sure I have the time to do the reset on the NV+ at this time - I think I am looking at a NAS which can backup to CrashPlan - which this one definitely cannot do, so then the extra effort is moot.

CrashPlan is good, esp. for disaster recovery. However, it is not as fast as local backup. Also, the Crashplan folks do not recommend using only one backup site. So I use my older duo/NV+ units to backup my pro, which is also (very recently) being backed up with crashplan.

BTW, with some effort it might be possible to use a PC with Crashplan to backup the NV+ (mapping the shares as a network drive). CrashPlan does not officially support this, but they do provide a guide here: http://support.crashplan.com/doku.php/r ... ped_drives. I haven't tried it myself though.

[SuperFlyBoy]

BTW, with some effort it might be possible to use a PC with Crashplan to backup the NV+ (mapping the shares as a network drive). CrashPlan does not officially support this, but they do provide a guide here: http://support.crashplan.com/doku.php/r ... ped_drives. I haven't tried it myself though.

Yes, I'm doing something similar with LiveKive (AVG) for one of the directories that are most important.

Will try to look at your link when I have time - thanks for that!

[SuperFlyBoy]

Now I have 3 x 2 TB WD disks installed as under:

RAID Disks:
Ch 1 : WDC WD2002FAEX-007BA0 [1862 GB] 694 GB allocated
Ch 2 : WDC WD2002FAEX-007BA0 [1862 GB] 694 GB allocated
Ch 3 : WDC WD2002FAEX-007BA0 [1862 GB] 694 GB allocated

However, how do I ramp them up to their full capacity of 1862 GB - a hard reset after backup - is this the only way?

[mdgm]

What is the volume status? Is it redundant?

If so, have you tried a reboot?

[SuperFlyBoy]

What is the volume status? Is it redundant?

Yes, it's redundant now.

If so, have you tried a reboot?

Not after installing the third disk in the original position (Slot 1) of the 750 GB Seagate - the one that wasn't failing.

That one is now removed, in case it also starts to act up and because posts here mentioned (or as I understood) that it might limit the capacity of the other 2 TB drives...

Do slot positions even matter?

[mdgm]

Slot positions don't matter as much as they used to, but I still personally wouldn't reorder disks. Try a reboot.

[SuperFlyBoy]

Slot positions don't matter as much as they used to, but I still personally wouldn't reorder disks. Try a reboot.

Okay, will do that first and report.

[SuperFlyBoy]

Slot positions don't matter as much as they used to, but I still personally wouldn't reorder disks. Try a reboot.

Okay, will do that first and report.

Had to reboot the unit a few times and is now showing full capacity! ^

Thanks guys for all your help!