Good day,Using a ReadyNAS Duo v2 I have almost reached my 3TB capacity in X-RAID2 mode. I was looking to expand, and upon checking the SMART status of the two discs, I have found, what I believe to be problems with the DISC2.SMART Information for Disk 1Model: WDC WD30EFRX-68AX9N0 2794 GBSerial Number: WD-WMC1T0570XXXFirmware Version: 80.00A80SMART AttributeRaw Read Error Rate: 0Spin Up Time: 6050Start Stop Count: 3661Reallocated Sector Count: 0Seek Error Rate: 0Power On Hours: 8504Spin Retry Count: 0Calibration Retry Count: 0Power Cycle Count: 30Power-Off Retract Count: 25Load Cycle Count: 3635Temperature Celsius: 33Reallocated Event Count: 0Current Pending Sector: 0Offline Uncorrectable: 0UDMA CRC Error Count: 0Multi Zone Error Rate: 0ATA Error Count: 0SMART Information for Disk 2Model: WDC WD30EFRX-68AX9N0 2794 GBSerial Number: WD-WMC1T0573XXXFirmware Version: 80.00A80SMART AttributeRaw Read Error Rate: 102Spin Up Time: 6508Start Stop Count: 3645Reallocated Sector Count: 0Seek Error Rate: 0Power On Hours: 8505Spin Retry Count: 0Calibration Retry Count: 0Power Cycle Count: 29Power-Off Retract Count: 24Load Cycle Count: 3620Temperature Celsius: 34Reallocated Event Count: 0Current Pending Sector: 3Offline Uncorrectable: 0UDMA CRC Error Count: 0Multi Zone Error Rate: 0ATA Error Count: 0For my peace of mind, i have just started a full backup of the NAS.I am then relying on people here to advise me what to do next. I need more capacity, and was planning to convert the RAID to give me 6TB capacity. However, to do that, I will maybe need to buy a new WD 3TB RED.What are peoples thoughts here?I also notice that when playing GoPro3HD footage from the NAS to my iMac, I experience a lot of jitter. I think it is my mac that causes that.Thank you

The raw read error rate "stores data related to the rate of hardware read errors that occurred when reading data from a disk surface. The raw value has different structure for different vendors and is often not meaningful as a decimal number" http://en.wikipedia.org/wiki/S.M.A.R.T. ... attributesSo its not clear how high the number is. All but one of my red drives has 0 though - the exception has a 2.

I investigated on the meaning of that value some time ago. Seagate drives have very high number and it's perfectly normal. Someone involved in a business where a high number of drives were being used told me it was a nightmare to have information from the manufacturers, even though it was their interest to provide some details!Both my REDs have 0. Not sure how/if you can find out if 102 is a reason for concern or not though.

I suppose you could run lifeguard on the drive (in a PC) and see if it failed.

I started a backup of the c: of the nas via dashboard 19 hours ago and it had only copied 600gb of the 2.7tb so far.I am using a usb3 drive, so I would have expected it to have finished by now, but it hasn't.Does this confirm a dying disc?Can someone point me to a speed table that shows what speeds I should expect from the nas in different uses?

The Duo v2 is a low power system, it will never get near maxing out USB3. What filesystem is on the USB HDD? NTFS will be the slowest performer.

WD Red 3TB high RawReadErrorRate | NETGEAR Communities

24 Replies

Replies have been turned off for this discussion

StephenB
Guru - Experienced User
May 07, 2014
Unfortunately you need to start fresh - the older NAS have no ability to switch between flexraid and xraid. OS6 does (with some limitations), of course you can only run 5.x.

My advice is to start with just the new disk installed in slot 1, and choose flexraid/jbod. After that setup completes, hot-insert the old disk in slot 2. There are two reasons
(a) if the initial setup fails for some reason, you still can fall back to your old setup by reinstalling the old disk in slot 1 with the NAS off.
(b) It makes it a little more difficult to accidentally end up in RAID1 (or RAID0)
jhbingham
Aspirant
May 07, 2014
ok. the moment of truth!

jhbingham

Aspirant

May 07, 2014

StephenB wrote:
Unfortunately you need to start fresh - the older NAS have no ability to switch between flexraid and xraid. OS6 does (with some limitations), of course you can only run 5.x.

My advice is to start with just the new disk installed in slot 1, and choose flexraid/jbod. After that setup completes, hot-insert the old disk in slot 2. There are two reasons
(a) if the initial setup fails for some reason, you still can fall back to your old setup by reinstalling the old disk in slot 1 with the NAS off.
(b) It makes it a little more difficult to accidentally end up in RAID1 (or RAID0)

StephenB wrote:
Unfortunately you need to start fresh - the older NAS have no ability to switch between flexraid and xraid. OS6 does (with some limitations), of course you can only run 5.x. My advice is to start with just the new disk installed in slot 1, and choose flexraid/jbod. After that setup completes, hot-insert the old disk in slot 2. There are two reasons (a) if the initial setup fails for some reason, you still can fall back to your old setup by reinstalling the old disk in slot 1 with the NAS off. (b) It makes it a little more difficult to accidentally end up in RAID1 (or RAID0)

Might have made a mistake.

First disk installed and firmware installed. THEN inserted the disk2, and the nas saw that new disk being inserted.....how do i get it as the 2nd volume and to be made blank?

jhbingham

Aspirant

May 07, 2014

jhbingham wrote:
StephenB wrote:
Unfortunately you need to start fresh - the older NAS have no ability to switch between flexraid and xraid. OS6 does (with some limitations), of course you can only run 5.x.

My advice is to start with just the new disk installed in slot 1, and choose flexraid/jbod. After that setup completes, hot-insert the old disk in slot 2. There are two reasons
(a) if the initial setup fails for some reason, you still can fall back to your old setup by reinstalling the old disk in slot 1 with the NAS off.
(b) It makes it a little more difficult to accidentally end up in RAID1 (or RAID0)

Might have made a mistake.

First disk installed and firmware installed. THEN inserted the disk2, and the nas saw that new disk being inserted.....how do i get it as the 2nd volume and to be made blank?

Disregard - it just appeared as the d:!

Thanks for AL your help!

Forum Discussion

WD Red 3TB high RawReadErrorRate

24 Replies

Related Content

MR70: Red Light

RBR50 powerled RED

XR1000 High upload ping

Orbi App everything Red

Red LED - Nighthawk Mesh System

NETGEAR Academy

ProSupport for Business